Service Reference Startup Screen
00000

ProServa V Plus
Online Service Reference

Table of Contents

Introduction	Diagnostics
System Overview	Disassembly and Installation Procedures
Configuration	Parts Lists
Troubleshooting


Introduction
00100

Introduction

Welcome to the ProServa V Plus Online Service Reference. This On-Line help file replaces the traditional hard copy service documentation with a more portable and easy to use format. You can print any part of this reference by selecting the 'Print Topic' button.

This service reference provides disassembly and installation instructions, troubleshooting techniques, and specifications for the server. This service reference also contains a complete parts list, including an exploded view of the system. Click your mouse on an exploded view item and a pop-up information window will provide you with the complete parts listing. If you need a printed copy of any screen in this service reference, select the print button located at the top of the help screen.

Legal and Safety Statements


00110

Legal and Safety Statements

Lithium Battery Warnings
Copyright, Restricted Rights and Trademarks


00120

Lithium Battery Warnings

Warning  Lithium batteries can be dangerous. Improper handling or installation of lithium batteries may result in an explosion. Replace them only with an exact replacement. Dispose of lithium batteries by returning them to your dealer.

Avertissement  Les batteries lithium présentent certains risques. Une mauvaise manipulation ou installation peut provoquer une explosion des batteries. N'utilisez que ce type de batteries. Rapportez les batteries usées chez votre revendeur.

Avvertenza  Le batterie al litio possono essere pericolose. L'uso o l'installazione impropri di tali batterie può provocare un'esplosione. Sostituirle con altre batterie di tipo adeguato. Le batterie al litio usate dovrebbero essere restituite al rivenditore.

Waarschuwing - Lithium-batterijen kunnen gevaarlijk zijn. Het onjuist hanteren of installeren van Lithium-batterijen kan een explosie tot gevolg hebben. Vervang de batterijen altijd door exact de zelfde. Breng oude Lithium-batterijen terug naar uw leverancier.

Vorsicht  Lithium-Batterien können gefährlich sein. Unsachgemäße Handhabung oder Installation der Lithium-Batterien können unter Umständen eine Explosion verursachen. Tauschen Sie sie nur durch Ersatzbatterien des gleichen Typs aus. Bitte geben Sie alte Lithium-Batterien an Ihren Händler zurück.

Advertencia  Las baterías de litio pueden ser peligrosas. Si no se instalan o se manejan con cuidado, pueden explotar. Sustitúyalas por una exactamente igual y entregue la gastada a su distribuidor.

ADVARSEL!  Litiumbatteri  Eksplosionsfare fed fejlagtig håndtering. Udskiftning må kun ske med batteri af samme fabrikat og type. Levèr det brugte batteri tilbage til leverandøren.

ADVARSEL!  Litiumbatteri  Eksplosjonsfare ved feilaktig håndtering. Utskiftning må kun skje med batteri av samme fabrikat og type. Lèver det brukte batteri tilbake til leverandøren

VARNING!  Explosionsfara vid felaktigt batteribyte. Använd samma batterityp eller en ekvivalent typ som rekommenderas av apparattillverkaren. Kassera använt batteri enligt tillverkarens rekommendation.

VAROITUS!  Paristo voi räjähtää, jos se on virheellisesti asennettu. Vaihda paristo ainoastaan laitevalmistajan suosittelemaan tyyppiin. Hävitä käytetty paristo valmistajan ohejiden mukaisesti.


00130

Copyright and Restricted Rights

Copyright © 1996 by NEC Computer Systems Division

Trademarks

MS-DOS is a registered trademark of Microsoft Corporation.
Pentium is a registered trademark of Intel Corporation.
ProServa is a trademark of NEC Computer Systems Division

All other trademarks belong to their respective owners

Part Number: 903908

November, 1996


General System Description
10000

System Overview

Select one of the following:

	Front View	Rear View
	General System Description	System Board
	System Chassis	Front Panel Board
	Mass Storage Devices	Keyboard
	Power Supply	Optional Hardware
	Mouse


front view
10005

Front View

Scroll the following illustration with your mouse pointer.  When the arrow turns into a hand, click your left mouse button to see a description of the item.


Rear View
10010

Rear View

Scroll the following illustration with your mouse pointer.  When the arrow turns into a hand, click your left mouse button to see a description of the item.


Gen. Descript.
10015

General Description

The server is a modular, multiprocessing system based on the Intel Pentium® chip set.

The combination of compute performance, memory capacity, and integrated I/O provides a high performance environment for many applications including network servers, multi-user systems, and computer-aided design/computer-aided engineering (CAD/CAE) applications.

As application requirements increase, you can expand the system with additional memory, add-in boards and peripheral devices: tape, CD-ROM, diskette drives and hard disk drives.

The server features the following major components:

•	A high-performance synchronous system bus to interconnect CPUs and memory subsystems with a bridge to expansion bus I/O.

•	On-board wide SCSI and narrow SCSI controllers.

•	A eight-slot integrated PCI/EISA I/O expansion bus.

•	Up to 256MB of ECC memory (minimum configuration is 16MB).


main board features
10020

System Board

	A. EISA Expansion Slots B. PCI Expansion Slots C. I/O Riser Board Connector D. Video DRAM Socket E. Cache Memory Module Connector F. Narrow SCSI Connector G. Front Panel Connector H. Diskette Connector I.  Primary Pentium Processor J. Memory SIMM sockets K. Optional 2nd Pentium Processor L. Wide SCSI Connector M. Configuration Jumper Block N. Real-Time Clock Connector
System Board Features

Each model includes a multiprocessor system board that contains the following major components:

Pentium Processor

The primary Pentium processor plugs into a ZIF socket on the system. This processor features 32-bit addressing, 64-bit data transfer, on chip numeric coprocessor, and a 16 KB cache.  An optional second Pentium processor enhances performance and enables symmetric multiprocessing (SMP).  Both processors access the same memory and I/O space and tasks can run on either CPU if your operating system (OS) supports SMP.

Cache Memory

The minimum system board configuration includes a 256 KB Level 2 (L2) cache memory. A socket allows for cache memory expansion to 512 KB.

System Memory

The minimum system board configuration includes 16 MB of system memory.  8 SIMM sockets allow for system memory expansion to 256 MB.

Bus Master I/O Expansion Slots

The system board contains six EISA bus master I/O (input/output) expansion slots. The EISA architecture supports 32-bit memory addressing and 16-bit or 32-bit data transfers for the CPU, DMA, and bus masters.

The system board also contains three PCI bus master I/O expansion slots. One of these slots shares a common chassis I/O expansion slot with one of the EISA slots; if you use this slot as an PCI slot, you cannot use it as an EISA slot.

Real-Time Clock/Calendar

The real-time clock provides system clock/calendar information stored in a non-volatile memory with an integral backup battery.

BIOS

A BIOS and Configuration Utility are located in the Flash EPROM on the system board and include support for system configuration and PCI auto-configuration.

SCSI Controller

The system includes two onboard SCSI controllers, providing both wide and narrow SCSI support. The narrow SCSI controller provides support for internal mounted tape and CD-ROM drives and the wide SCSI controller provides support for four internally mounted hard disk drives.

Video Controller

The system has a high-performance SVGA subsystem that supports the following:

•	Hardware and register compatibility with SVGA modes.

•	BIOS compatibility with VGA, EGA, CGA, Hercules Graphics, and MDA.

•	KB of Video Random Access Memory (VRAM) expandable to 1 MB.

•	16-bit bus for high-speed display memory access.

•	Hardware accelerated bit block transfers (BITBLT).

•	Displays of up to 32,000 colors in some video resolutions.

Note: SVGA drivers may be required to use the high-performance video modes.

Peripheral Controller

The advanced integrated peripheral controller supports 2 serial ports and one parallel port through the I/O riser board.

The advanced integrated peripheral controller also supports the connection of 2 diskette drives.

External Device Connectors

The I/O panel provides connectors for a PS/2 compatible mouse and a keyboard, connectors for VGA monitor, 2 serial port connectors, and a parallel port connector. It also provides an external narrow SCSI connector. The system also provides for an optional external wide SCSI connector kit.

Keyboard and Mouse Interface

The keyboard and mouse interface with the system control processor through bi-directional ports and connect to the system board through six-pin mini-DIN connectors.

Serial Ports

The system has two 9-pin male D-type RS232 (V.24) serial connectors. The serial ports are fully programmable and support asynchronous communications at speeds up to 115.2K baud.

Each serial port can be enabled separately with either edge- or level-sensitive interrupts. When disabled, serial port interrupts are available for add-in EISA/ISA cards. Either port can be programmed as COM1, COM2, COM3, COM4, or disabled using the SCU.

Parallel Port

The system has one 25-pin female D-type bi-directional, high-speed parallel port. It can be configured using the SCU as LPT1, LPT2, LPT3, or disabled. When disabled, parallel port interrupts are available for add-in EISA/ISA cards. The parallel port can be configured for bi-directional (PS/2 compatible) or Centronics compatible (PC/AT compatible) mode.


Mass Storage Devices
10025

Mass Storage Devices

All models of the server are equipped with a 3.5-inch 1.44 MB diskette drive and a 4X speed CD-ROM drive.

Peripheral upgrade possibilities include four 3.5-inch disk bays for 1 GB or 2 GB
disk drives as well as three 5.25-inch accessible bays for diskette, tape or
CD-ROM devices.  Many additional storage devices are available for this system.

Diskette Support

3.5-inch 1.44 MB (standard); 3.5-inch 2.88 MB; and 5.25-inch 1.2 MB floppy drives are available.


Front Panel Board
10030

Front Panel Board

The front panel board contains:

•	Power-on LED

•	SCSI activity interface LED

•	Power pushbuttton

•	Reset pushbutton.

Refer to Front View for the locations of the above pushbuttons and LED indicators.


power supply
10035

Power Supply

The 300 watt power supply is switch-selectable for 115 or 230 Vac at an operating frequency of 50/60 Hz.  It is designed to comply with existing emissions standards and provides sufficient power for a fully loaded system configuration. Two different line voltage selection switches are used in the server power supplies. Both are illustrated below. Refer to the illustration that resembles your voltage selection switch when setting the voltage selector switch.

A.  Voltage selector switch set to 115 VAC
B.  Voltage selector switch set to 230 VAC
C.  Voltage selector switch set to 115 VAC
D.  Voltage selector switch set to 230 VAC


keyboard
10040

Keyboard

The computer comes equipped with either a 101, 102, or 104-key keyboard that includes alphanumeric keys, cursor control keys, numeric keys, and programmable function keys.


mouse
10045

Mouse

The system board contains a dedicated PS/2-compatible mouse port.  Either a two- or three-button mouse is available.


Optional hardware
10050

Optional Hardware

The following list shows some of the *optional hardware that may be installed in this server.

•	5.25 1.2MB Floppy disk drive

•	Second 3.5  1.4MB Floppy disk drive

•	Second CD-ROM drive

•	Tape drives

•	Memory upgrade in 16, 32, and 64 Mb kits

•	PCI SCSI controller kit; 2-channel

•	PCI RAID SCSI controller kit; 2-channel

•	32 bit Ethernet LAN board

•	16 bit Ethernet LAN board

•	Token Ring LAN board

*Some optional hardware may not be available for use on specific models.


LCD Board
10055

System Chassis

The system chassis is an easy-to-expand, fabricated metal structure.

A.  5.25" front panel peripheral bay
B.  1.44 MB 3.5" diskette drive
C.  Fan
D.  Speaker
E.  System board
F.  Power supply (behind 3.5" disk drive bay)
G. 3.5" disk drive bay
H. Security Lock


Floppy Disk drive
1A001

Standard 3.5 floppy disk drive.


Power button
1A002

Power on/off button:  Turns the system DC power on or off.


Reset Button
1A003

Reset button:  When pressed, resets the system and causes the Power-On Self-Test (POST) to run.


LCD Display
1A008


Power-on LED
1A004

Power-on LED:  When lit, indicates the presence of voltage in the system. The LED goes out when the power is turned off or the power source is disrupted.


SCSI activity LED
1A005

SCSI interface activity LED:  When lit, a hard disk drive or other SCSI device is in use.


SCSI activity LED
1A006

SCSI interface activity LED:  When lit, a hard disk drive or other SCSI device is in use.


SCSI fault LED
1A007

SCSI device fault LED:  When lit, a faulty SCSI device in the system.


SCSI drive Power LED
1A009

SCSI disk drive power-on LED:  When lit, power is provided to the disk drive.  The LED goes out when the power is turned off or the power source is disrupted.


SCSI HDD activity LED
1A010

SCSI disk drive activity LED: When lit, the hard disk drive is in use.


SCSI drive fault LED
1A011

SCSI drive fault LED:  When lit, the SCSI disk drive is faulty.


Drive bay A
1A012

Drive Bay A:  Standard systems contain a CD-ROM drive in this bay.


drive bay b
1A013

Drive Bay B:  5.25-inch device bay


bay c
1A014

Drive Bay C:  5.25-inch device bay


bay D
1A015

Drive Bay D:  5.25-inch device bay


top plastic bezel
1A016

Top Plastic Bezel


locking tabs
1A017

Locking tabs for user-supplied padlock


Bottom plastic drive access door
1A018

Bottom plastic drive access door


Feet
1A019

Removable Feet


AC Power connector
1B001

AC power cord connector


Mouse port
1B002

Mouse port:  6-pin connector


keyboard port
1B003

Keyboard port:  6-pin connector


Serial port 1
1B004

Serial port 1:  9-pin male connector


Serial Port 2
1B005

Serial port 2:  9-pin male connector


SVGA Connect
1B006

SVGA:  15-pin video connector


Parallel port
1B007

Parallel port:  25-pin female connector


Jtag
1B008

JTAG connector (Factory use only)


Exp cab. power interlock connector
1B009

Line voltage selector switch


Reserved for future
1B010

Reserved for future use


PCI slots
1B011

PCI expansion slot


combo slot
1B012

Combo PCI/EISA expansion slot


EISA slots
1B013

EISA expansion slot


Wide SCSI ext. knockout
1b014

Security lock loop


Narrow SCSI ext. knockout
1B015

External SCSI device connector


1b016

Line voltage selector switch set to 115Vac


1b017

Line voltage selector switch set to 230Vac


1b018

(type popup definition text here)


Troubleshooting
20000

Troubleshooting

Safety Precautions	Troubleshooting Procedures
Static Precautions	Connectors
Preliminary Checks
Status Lights


Configuration
20010

Configuration

System Board Jumpers
Updating the BIOS
Resetting the CMOS NVRAM
Erasing Passwords


Safety Precautions
20100

Safety Precautions

To avoid potential shock or other personal injury when servicing this system:

•	When operating the system, use a grounded AC power source.

•	Power down both the AC and the DC power and disconnect the system from the AC source before opening the cabinet.

•	Avoid power-ground shorts.

Warning: The push-button ON/OFF switch on the front panel does not turn off the system AC power. You must disconnect the AC power cord from the outlet to turn off the system AC power. Failure to disconnect power before opening the system can result in serious personal injury and equipment damage.


Static Precautions
20200

Static Precautions

Electrostatic discharges (ESD) can severely damage system equipment. Never handle static-sensitive devices without using proper ESD grounding techniques.

Use the following precautions whenever you service the system:

•	Place the system on a conductive or grounded work surface that is free of non-conductive materials.

•	Use an approved ESD wrist strap to ground yourself to earth prior to handling static-sensitive devices. The wrist strap must contain a 1 MΩ safety resistor.

•	After you remove a device from its protective packaging, do not set it down until it is installed in the system or returned to its protective packaging.

•	Place any devices removed from the system in protective packaging.

•	Do not remove the wrist strap until after you replace the system cover.


Preliminary Checks
20300

Preliminary Checks

Before you begin troubleshooting, perform the following:

•	Make sure a keyboard and monitor are connected.

•	Before powering on the system, look for external and internal signs of physical damage.

•	Make sure the line voltage select switch on the back of the power supply is set to match your AC source.

•	Is AC power available at the wall outlet?

•	Is the system power cord properly connected to the system and plugged into a NEMA 5-15R outlet for 100-120 V ac or a NEMA 6-15R outlet for 200-240 V ac?

•	Did you press the power on/off push-button switch on the front panel to turn the server on (power-on indicator should be lit)?

•	Are all cables correctly connected and secured?

•	Are all the EISA/ISA/PCI add-in boards fully seated in their slots on the system board?

•	Are all jumper settings on the system board correct?

•	Are all jumper and switch settings on add-in boards and peripheral devices correct?  Refer to the manufacturers documentation that comes with them.  If applicable, ensure that there are no conflictsfor example, two add-in boards sharing the same interrupt.

•	Are all SIMMs installed correctly?

•	Are all peripheral devices installed correctly?

•	If the system has a hard disk drive, is it properly formatted or defined?

•	Are all device drivers properly installed?

•	Are the configuration settings made with the System Configuration Utility (SCU) correct?

•	Is the operating system properly loaded?  Refer to the operating system documentation.


Status Lights
20400

Status Lights

The system conveys status LED information from the front panel board to the front panel. The LEDs provide DC power and drive activity status.

Place the mouse pointer over the reference numbers. When the arrow turns into a hand, click the left mouse button to see a description of each item.


SL1

Hard disk drive activity LED: when lit indicates a hard disk drive is in use.


SL2

DC power-on LED: when lit, indicates the presence of power in the system. The LED goes out when the DC power is turned off or the AC power source is disrupted.

Caution: Hazardous voltages are present inside the server whenever it is connected to the AC supply, even when the power switch and the DC power-on LED are OFF. These voltages could cause personal injury.


SL3


SL4

Hard disk drive or other SCSI device activity

Recovering the BIOS (Not Used)

Flash memory contains a protected area that cannot be corrupted. Code in this area boots the system from drive A when the BIOS has been corrupted. The recovery procedure automatically loads flash memory from the BIOS files on the Flash Memory Update disk shipped with the system. Corrupt BIOS can be reprogrammed using the following steps.

1.	Power off the system and disconnect the system from the AC source.

2.	Remove the side cover and the internal access panel, as described in the Disassembly and Installation of Options chapter.

3.	Remove any optional add-in boards.

4.	Set system board jumper BOOT OPTION to pins 2-3.

5.	Reconnect AC power.

6.	Place the Flash Memory Update disk in drive A and power on the system.

Note: There is no monitor display and the Keyboard is disabled during the recovery process. The recovery status is identified by beep codes:

Two beeps  indicates the recovery was successful.

Four beeps  indicates the system could not boot the disk.

Continuous beeps  indicate the wrong BIOS recovery files and/or the FLASH code jumper is not set properly.

7.	Once the reprogramming is complete, power off the system and disconnect it from the AC source.

8.	Restore the BOOT OPTION jumper to its original setting (1-2).

9.	Replace any add-in boards that were removed earlier.

10.	Replace the system covers.


20510

System Board Jumpers

Jumper Configurations

Jumper	Description	Option	Setting	Factory Default	Your Setting
RESERVED J7A		Required on factory default.	2-3	2-3	2-3
FLASH CODE J6A	FLASH reprogramming power protection	BIOS not write protected; FLASH update BIOS write protected; no FLASH update	1-2 2-3	1-2
RESERVED J5A		Required on factory default.	1-2	1-2	1-2
COLOR J4A	Color or monochrome monitor	Color monitor Monochrome monitor	1-2 2-3	1-2
RESERVED  J3A		Required on factory default	1-2	1-2
CPU SPEED J2A	Used with jumpers at J1A, J5B, J6B and J2201 to set CPU speed.	Refer to CPU Speed Configuration Table below  to set CPU speed. Bus:CP Freq = 2:3 or 1:3 = pins 1-2 Bus:CP Freq = 1:2 or 2:5 = pins 2-3	Dependent on speed of installed CPU.
CPU SPEED J1A	Used with jumpers at J2A, J5B, J6B and J2201 to set CPU speed.	Refer to CPU Speed Configuration Table below  to set CPU speed. Bus:CP Freq = 2:3 or 1:2 = pins 1-2 Bus:CP Freq = 1:3 or 2:5 = pins 2-3	Dependent on speed of installed CPU.
RESERVED J7B		Required on factory default.	1-2	1-2	1-2
CPU SPEED J6B	Used with jumpers at J1A, J2A, J5B and J2201 to set CPU speed.	Refer to CPU Speed Configuration Table below  to set CPU speed. Bus:CP Freq = 60 Mhz = pins 1-2 Bus:CP Freq = 66 Mhz = pins 2-3	Dependent on speed of installed CPU.
CPU SPEED J5B	Used with jumpers at J1A, J2A, J6B and J2201 to set CPU speed.	Refer to CPU Speed Configuration Table below  to set CPU speed. Bus:CP Freq = 50 or 60 Mhz = pins 1-2 Bus:CP Freq = 66 Mhz = pins 2-3	Dependent on speed of installed CPU.
RESERVED J4B		Required on factory default.	1-2	1-2	1-2
CPU  J3B	Primary CPU	CPU 1 is primary CPU 2 is primary	1-2 2-3	1-2
PASSWORD CLEAR J2B	Password protection	Password protection enabled Password cleared; protection off	1-2 2-3	1-2
CMOS CLEAR J1B	Real-time clock CMOS protection	RTC CMOS protection enabled RTC CMOS cleared to factory defaults	1-2 2-3	1-2
CACHE TYPE J101	Used with J102 to set CACHE type.	Refer to Cache Configuration Table below  to set CACHE type.	1-2 2-3	2-3
CACHE TYPE J102	Used with J101 to set CACHE type.	Refer to Cache Configuration Table below  to set CACHE type.	1-2 2-3	2-3
CACHE SIZE J103	Used with jumper J104 to set CACHE size.	Refer to Cache Configuration Table below  to set CACHE type.	1-2 2-3	1-2
CACHE SIZE J104	Used with jumper J103 to set CACHE size.	Refer to Cache Configuration Table below  to set CACHE type.	1-2 2-3	2-3
OPTIONAL CACHE J105	Must be set when optional CACHE is installed.	Refer to Cache Configuration Table below  to set optional CACHE type.	1-2 2-3	2-3
RESERVED J106		Required on factory default	2-3	2-3	2-3
COM2 INTERFACE J601	All nine jumpers are either in for COM2 interface or out for CP8 interface.	Interface = COM2 Interface = CP8	IN OUT	IN
CPU SPEED J2201	Used with jumpers at J1A, J2A, J5B and J6B to set CPU speed.	Refer to CPU Speed Configuration Table below  to set CPU speed.  Bus:CP Freq = 50 or 60 Mhz = pins 1-2 Bus:CP Freq = 66 Mhz = pins 2-3	Dependent on speed of installed CPU.
CPU Speed Jumper Configurations Table

CPU SPEED	JUMPER SETTINGS
	J1A	J2A	J5B	J6B	J2201
120/60 MHz	1-2	2-3	1-2	1-2	1-2
150/60 MHz	2-3	2-3	1-2	1-2	1-2
133/66 MHz	1-2	2-3	2-3	2-3	2-3
166/66 MHz	2-3	2-3	2-3	2-3	2-3
200/66 MHz	2-3	1-2	2-3	2-3	2-3
CACHE Jumper Configurations Table

CACHE	JUMPER SETTINGS
	J101	J102	J103	J104	J105
256K basic	2-3	2-3	1-2	2-3	2-3
256K basic + 256K option	1-2	1-2	2-3	1-2	2-3


Updating the BIOS
20600

Updating the BIOS

To update the system BIOS:

1.	Insert an MS-DOS bootable diskette into Drive A and power up the system.

2.	At the A:\ prompt, remove the MS-DOS diskette and insert the BIOS FLASH diskette.

3.	Enter PHLASH and press ENTER.

4.	Monitor the BIOS update process.

5.	When the Update Process Complete screen appears, remove the diskette and power down the system.

6.	Power up the system.

If the procedure fails, perform the following steps and then retry the Update BIOS procedure.

1.	Turn off the system and remove the remove the side panel.

2.	Ensure the FLASH CODE jumper J6A is set to pins 1-2 to enable updates to the BIOS.

3.	Replace the panel and power up the system with the BIOS FLASH diskette inserted in Drive A

4.	The recovery process, if required, is automatic.


Erasing Passwords
20700

Resetting the NVRAM and CMOS

The NVRAM that stores EISA configuration information and the RTC CMOS memory that stores ISA configuration can be cleared and reset to factory default values using the following steps.

1.	Power off the system and disconnect the system from the AC source.

2.	Remove the side panel.

3.	Set system board jumper CMOS CLEAR to pins 2-3.

4.	Reconnect AC power and power on the system. The CMOS NVRAM will automatically reset to the default settings.

5.	When the POST (power-on self-tests) complete, power off the system and disconnect the AC power source.

6.	Restore system board jumper CMOS CLEAR to its original setting (1-2).

7.	Replace the system covers.

8.	Run the SCU to configure the system.

Note: If you are unable to run the SCU, use the Setup utility to configure the system, and then run the SCU.


20800

Erasing Passwords

Note: The following information is proprietary and is not to be distributed outside of Zenith Data Systems and its authorized representatives.

The systems power-on, keyboard, and network passwords can be erased using the following steps.

1.	Power off the system and disconnect the system from the AC source.

2.	Remove the side panel.

3.	Set system board jumper PASSWORD CLEAR to pins 2-3.

4.	Reconnect AC power and power on the system. This automatically clears the password.

5.	When the power-on self-tests complete, power off the system and disconnect the AC power source.

6.	Move PASSWORD CLEAR Jumper back to pins 1-2.

7.	Power on the system and verify that the passwords were erased.

If the password did not erase, retry the procedure and then, if necessary, replace the system board.

8.	Replace the system cover.

9.	Run the SCU or Setup to specify a new password.


Troubleshooting
20900

Troubleshooting

Hardware Troubleshooting

Application Software Troubleshooting

Troubleshooting After the System Has Been Running Correctly


Hardware Troubleshooting
20910

Hardware Troubleshooting

Preparing the System for Testing

Power-On-Self-Test (POST)

Monitoring POST

BIOS Messages

POST Error Codes and Messages


POST Beep Codes
20940

BIOS Messages

Whenever a recoverable error occurs during POST, BIOS displays a message on the video display screen and causes the speaker to beep twice as the message appears. BIOS also issues a beep code )one long tone followed by two short tones) during POST if the video configuration fails or if an external ROM module does not checksum to zero. The error code will also be logged to the Event Logging area.

The following is a list of error and status messages which BIOS can generate.

             BIOS Messages

MESSAGE	DESCRIPTION
nnnn Cache SRAM Passed	Where nnnn is the amount of system cache in kilobytes successfully tested.
Diskette drive A error or Diskette drive B error	Diskette Drive is present but fails the BIOS POST diskette tests. Check to see that the drive is defined with the proper diskette type in Setup and that the diskette drive is correctly attached.
Entering SETUP ...	The Setup program is starting.
Extended RAM Failed at offset: nnnn*	Extended memory is not working or is not properly configured at offset nnnn.
nnnn Extended RAM passed	Where nnnn is the amount of RAM in kilobytes successfully tested.
Failing Bits: nnnn*	The hex number nnnn is a map of the bits at the RAM address (in System, Extended, or Shadow memory) which failed the memory test. Each 1 (one) in the map indicates a failed bit.
Fixed Disk 0 Failure or Fixed Disk 1 Failure or Fixed Disk Controller Failure*	Fixed disk is not working or not properly configured. Check to see if the fixed disk is attached properly. Run Setup to be sure the fixed disk type is correctly identified.
Incorrect Drive A type - run SETUP or Incorrect Drive B type - run SETUP	Type of floppy drive is not correctly identified in Setup.
Invalid NVRAM media type*	Problem with NVRAM (CMOS) access.
Keyboard controller error*	The keyboard controller test failed. You may have to replace the keyboard or controller.
Keyboard error nn	The keyboard is not working. BIOS discovered a stuck key and displays the scan code nn for the stuck key.
Keyboard locked - Unlock key switch	Unlock the system to proceed.
Monitor type does not match CMOS - Run SETUP	Monitor type is not correctly identified in Setup.
Operating system not found	The operating system cannot be located on either drive A: or drive C:. Enter Setup and see if the fixed disk and floppy are properly identified.
Parity Check 1 nnnn* or Parity Check 2 nnnn*	A parity error was found in the system bus (Parity Check 1) or the I/O bus (Parity Check 2). BIOS attempts to locate and display the address on the screen. If it cannot locate the address, it displays ????.
Press <F1> to resume, <F2> to Setup	Displayed after any recoverable error message.
Press <F2> to enter SETUP	Optional message displayed during POST. Can be turned off in Setup.
Previous boot incomplete - Default configuration used	Previous POST did not successfully complete. POST loads default values and offers to run Setup. If the failure was caused by incorrect values and they are not corrected, the next boot will likely fail. On systems with control of wait states, improper Setup settings can also terminate POST and cause this error on the next boot. Run Setup and verify that the wait-state configuration is correct. This error is cleared the next time the system is booted.
Real time clock error*	Real time clock fails BIOS test. May require board repair.
Shadow Ram Failed at offset: nnnn*	Shadow RAM failed at offset nnnn of the 64K block at which the error was detected.
nnnn Shadow RAM Passed	Where nnnn is the amount of shadow RAM in kilobytes successfully tested.
System battery is dead - Replace and run SETUP	The CMOS clock battery indicator shows the battery is dead. Replace the battery and run Setup to reconfigure the system.
System BIOS shadowed	The system BIOS is copied to shadow RAM.
System cache error - Cache disabled*	The RAM cache failed the BIOS test and BIOS has disabled the cache.
System CMOS checksum bad - run SETUP	The system CMOS has been corrupted or incorrectly modified, perhaps by an application program that changes data stored in CMOS. Run Setup and reconfigure the system either by getting the default values or making your own selections.
System RAM failed at offset: nnnn*	The system RAM failed at offset nnnn of the 64K block at which the error was detected.
nnnn System RAM Passed	Where nnnn is the amount of system RAM in kilobytes successfully tested.
System timer error*	The timer test failed. Requires repair of the system board.
UMB upper limit segment address: nnnn	Displays the address nnnn of the upper limit of the Upper Memory Blocks, indicating released segments of the BIOS which may be reclaimed by a virtual memory manager.
Video BIOS shadowed	The video BIOS is successfully copied to shadow RAM.
*If your system fails after you made changes in the BIOS Setup menus, you may be able to
 correct the problem by entering Setup and restoring the original values.


BIOS Messages
20950

POST Test Point Error Codes

At the beginning of each POST test routine, the BIOS outputs the test point error code to I/O address 80h. If the BIOS detects a terminal error condition, it halts POST after issuing a terminal error beep code signifying the test point code and attempting to display the test point error code on the upper left corner of the display screen. BIOS derives the beep code from the test point error code as follows:

1.	The 8-bit hexadecimal error code is broken down to four 2-bit groups.

2.	Each group is made one-based by adding one.

3.	Short beeps are generated for the number in each group.

For example, a test point error code of 16 is indicated by a 1-2-2-4 beep code (a single beep, a burst of two beeps, a burst of two beeps, and a burst of four beeps). In addition, BIOS writes a value of 16 on the upper left corner of the display screen and to I/O port 80h to enable debugging tools to identify the area of failure.

The following is a list of the test point error codes written at the start of each POST test and the beep codes issued for terminal errors.

POST Test Point Error Codes

CODE	BEEPS	POST ROUTINE DESCRIPTION
02		Verify Real Mode
04		Get CPU type
06		Initialize system hardware
08		Initialize chipset registers with initial POST values
09		Set in POST flag
0A		Initialize CPU registers
0B		Enable CPU cache
0C		Initialize cache to initial POST values
0E		Initialize I/O
0F		Initialize the local bus IDE
10		Initialize Power Management
11		Load alternate registers with initial POST values
12		Restore CPU control word during warm boot
14		Initialize keyboard controller
16	1-2-2-3	BIOS ROM checksum
18		8254 timer initialization
1A		8237 DMA controller initialization
1C		Reset Programmable Interrupt Controller
20	1-3-1-1	Test DRAM refresh
22	1-3-1-3	Test 8742 Keyboard Controller
24		Set ES segment register to 4 GB
28		Autosize DRAM
2A		Clear 512K base RAM
2C	1-3-4-1	RAM failure on address line xxxx*
2E	1-3-4-3	RAM failure on data bits xxxx* of low byte on memory bus
30	1-4-1-1	RAM failure on data bits xxxx* of high byte on memory bus
32		Test CPU bus-clock frequency
34		Test CMOS RAM
35		Initialize alternate chipset registers
36		Warm start shut down
37		Reinitialize the chipset (MB only)
38		Shadow system BIOS ROM
39		Reinitialize the cache (MB only)
3A		Autosize cache
3C		Configure advanced chipset registers
3D		Load alternate registers with CMOS values
40		Set Initial CPU speed
42		Initialize interrupt vectors
44		Initialize BIOS interrupts
46	2-1-2-3	Check ROM copyright notice
47		Initialize manager for PCI Option ROMs
48		Check video configuration against CMOS
49		Initialize PCI bus and devices
4A		Initialize all video adapters in system
4B		Display QuietBoot screen
4C		Shadow video BIOS ROM
4E		Display copyright notice
50		Display CPU type and speed
51		Initialize EISA slots
52		Test keyboard
54		Set key click if enabled
56		Enable keyboard
58	2-2-3-1	Test for unexpected interrupts
5A		Display prompt Press F2 to enter SETUP
5C		Test RAM between 512 and 640K
60		Test extended memory
62		Test extended memory address lines
64		Jump to User Patch1
66		Configure advanced cache registers
68		Enable external and CPU caches
6A		Display external cache size
6C		Display shadow message
6E		Display non-disposable segments
70		Display error messages
72		Check for configuration errors
74		Test real-time clock
76		Check for keyboard errors
7A		Test for key lock on
7C		Set up hardware interrupt vectors
7E		Test coprocessor if present
80		Disable onboard I/O ports
82		Detect and install external RS232 ports
84		Detect and install external parallel ports
85		Initialize PC-compatible PnP devices
86		Reinitialize onboard I/O ports
88		Initialize BIOS Data Area
8A		Initialize Extended BIOS Data Area
8C		Initialize floppy controller
90		Initialize hard disk drives
91		Initialize local-bus hard-disk controller
92		Jump to UserPatch2
93		Build MPTABLE for multiprocessor boards
94		Disable A20 address line
95		Install CD ROM for boot
96		Clear huge ES segment register
98	1-2	Search for option ROMs. One long, two short beeps on checksum failure
9A		Shadow option ROMs
9C		Set up Power Management
9E		Enable hardware interrupts
A0		Set time of day
A2		Check key lock
A4		Initialize typematic rate
A8		Erase F2 prompt
AA		Scan for F2 keystroke
AC		Enter SETUP
AE		Clear in-POST flag
B0		Check for errors
B2		POST done - prepare to boot operating system
B4	1	One short beep before boot
B5		Display MultiBoot menu
B6		Check password (optional)
B8		Clear global descriptor table
BC		Clear parity checkers
BE		Clear screen (optional)
BF		Check virus and backup reminders
C0		Try to boot with INT 19
D0		Interrupt handler error
D2		Unknown interrupt error
D4		Pending interrupt error
D6		Initialize option ROM error
D8		Shutdown error
DA		Extended Block Move
DC		Shutdown 10 error

The following are for boot block in FLASH ROM

E2		Initialize the chipset
E3		Initialize refresh counter
E4		Check for Forced Flash
E5		Check HW status of ROM
E6		BIOS ROM is OK
E7		Do a complete RAM test
E8		Do OEM initialization
E9		Initialize interrupt controller
EA		Read in the bootstrap code
EB		Initialize all vectors
EC		Boot the Flash program
ED		Initialize the boot device
EE		Boot code was read OK
* If the BIOS detects error 2C, 2E, or 30 (base 512K RAM error), it displays an additional word-bitmap (xxxx) indicating the address line or bits that failed. For example, 2C 0002 means data bits 12 and 5 (bits and 5 set) have failed in the lower 16 bits.


Post Test Point Error Codes
20960


Application Software Troubleshooting
20920

Application Software Troubleshooting

Problems that occur when you run new application software are usually related to the software, particularly if other software runs correctly.  Faulty equipment is much less likely, especially if other software runs correctly.

Checklist

•	Does the system meet the minimum hardware requirements for the software?  Refer to the software documentation.

•	Is the software properly configured for the system?  Refer to the software installation and operation documentation for instructions on setting up and using the software.

•	Is the software an authorized copy?  If not, get one; unauthorized copies often do not work.

•	If you are running the software from a diskette, is it a good copy? Try a different copy of the software to see if the problem is with the copy you are using.

•	If you are running the software from a hard disk drive, is the software correctly installed?  Were all necessary procedures followed and files installed?

•	Are the correct device drivers installed?

•	Are you using the software correctly?

•	Make sure all cables are installed correctly.

•	Verify that the system board jumpers are set correctly.

•	Try running the software in a different speed mode.

If the problems persist and other software runs correctly on the system, contact the software vendor's customer service representative.


Troubleshooting After the System Has Been Running Correctly
20930

Troubleshooting After the System Has Been Running Correctly

Problems that occur after the system hardware and software have been running correctly often indicate equipment failure.

Checklist

Verifying Proper Operation of Key System Indicators


Checklist
20970

Checklist

•	If you are running the software from a diskette, try a new copy of the software.

•	If you are running the software from a hard disk drive, try running it from a diskette.  If the software runs correctly, there may be a problem with the copy on the hard disk drive.  Reinstall the software on the hard disk drive, and try running it again.  Make sure all the necessary files are installed.

•	If the problems are intermittent, there may be a loose cable, dirt in the keyboard (if keyboard input is incorrect), a marginal power supply, or other random component failures.

•	If you are getting random errors in your data files, they may be getting corrupted by voltage spikes on your power line.  (Symptoms of voltage spikes include a flickering video display, unexpected system reboots, and the system not responding to user commands.)  Install a surge suppresser between the power outlet and the server power cord.

•	If you suspect that a transient voltage spike, power outage, or brownout might have occurred, reload the software and try running it again.


Verifying Proper Operation of Key System Indicators
02980

Verifying Proper Operation of Key System Indicators

As POST determines the system configuration, it tests for the presence of each mass storage device installed in the system.  As each device is checked, its activity indicator should turn on briefly.  Check for the following:

•	Does the diskette drive activity indicator turn on briefly?

•	If a second diskette drive is installed, does its activity indicator turn on briefly?

•	If there is a hard disk drive or SCSI devices installed in the system, does the hard disk drive activity indicator turn on briefly?

Confirming Loading of the Operating System

Power Indicator Does Not Light

System Cooling Fans Do Not Rotate

No Characters Appear on Screen

Characters Are Distorted or Incorrect

Incorrect or no Beep Code

Diskette Drive Activity Indicator Does Not Light

Hard Disk Drive Activity Indictor Does Not Light


Confirming Loadinf of the Operating System
20981

Confirming Loading of the Operating System

Once the system boots up, the operating system prompt should appear on the screen.  The prompt varies according to the operating system.


Power Indicator Does Not Light
20982

Power Indicator Does Not Light

•	Is the system operating normally?  If so, the power indicator LED is probably defective.

•	See:  System Cooling Fans Do Not Rotate


System Cooling Fans Do Not Rotate
20983

System Cooling Fans Do Not Rotate

Note: The system has two cooling fans: one is mounted on the chassis panel behind the front panel and the other is an integral part of the power supply. There are no serviceable components inside the power supply. If the power supply is opened, the manufacturer's warranty is voided.

Warning: If the system cooling fans are not operating properly, system components will be damaged.

•	Is AC power available at the wall outlet?

•	Is the system power cord properly connected to the system and the wall outlet?

•	Is the voltage switch setting correct for your line voltage?

•	Is the power connector for the cooling fan connected to the baseboard?

•	Did you press the power on/off push-button switch?

•	Is the power-on indicator lit?

•	Is the cable from the front panel board connected to the system board?

•	Are the power supply cables properly connected to the system board?

•	Are there any shorted wires caused by pinched cables or power connector plugs forced into power connector sockets the wrong way?

If the switches and connections are correct and AC power is available at the wall outlet, the power supply has probably failed.


No Characters Appear on Screen
20984

No Characters Appear on Screen

•	Is the keyboard working?

•	Is the video monitor plugged in and turned on?

•	Are the brightness and contrast controls on the video monitor properly adjusted?

•	Are the video monitor switch settings correct?

•	Is the video monitor signal cable properly installed?

•	Is the onboard video controller enabled?

•	Is the I/O panel correctly installed on the system baseboard?

•	If you are using an add-in video controller board:

1.	Verify that the video controller board is fully seated in the system board connector.  Plug the video cable into the video boards connector, not the I/O panel connector.

2.	Reboot the system for changes to take effect.

POST emits a beep code to indicate a possible problem with the video display controller.  If you do not receive a beep  code and characters do not appear, the video display monitor or video controller may have failed.


Characters Are Distorted or Incorrect
20985

Characters Are Distorted or Incorrect

•	Are the brightness and contrast controls properly adjusted on the video monitor?  Refer to the manufacturers documentation.

•	Are the video monitor signal and power cables properly installed?

If the problem persists, the video monitor may be faulty or it may be the incorrect type.


Incorrect or no Beep Code
20986

Incorrect or no Beep Code

•	Is the speaker enabled?

•	Is the signal cable connected to the front panel?

If the system operates normally, but there is no beep, the speaker may be defective.  Verify that the speaker is enabled by running the SCU.

Record the beep code emitted.

See:  POST Error Codes and Messages


Diskette Drive Activity Indicator Does Not Light
20987

Diskette Drive Activity Indicator Does Not Light

•	Are the diskette drive power and signal cables properly installed?

•	Are all relevant switches and jumpers on the diskette drive set correctly?

•	Is the diskette drive properly configured?

If you are using the onboard diskette controller, use the SCU to enable onboard floppy.  If you are using an add-in diskette controller, use the SCU to disable onboard floppy.

If the problem persists, there may be a problem with the diskette drive, system board, or drive signal cable.


hard Disk Drive Activity Indicator Does Not Light
20988

Hard Disk Drive Activity Indicator Does Not Light

The hard disk drive activity indicator lights when either an IDE hard disk drive or SCSI device is in use. If you have installed one or more hard disk drives:

•	Are the power and signal cables to the hard disk drive properly installed?

•	If your system contains a SCSI host adapter controller board, is it fully seated in the system board connector?  Is the hard disk activity LED cable connector plugged into the controller board?

•	Are all relevant switches and jumpers on the hard disk drive and controller board set correctly?

•	Is the hard disk drive properly configured?

If you did not receive POST error messages, run the SCU and make sure that the hard disk drive is configured with the correct parameters.

See:  Post Error Codes and Messages if you received POST error messages

If the problem persists, there may be a problem with the hard disk drive, the optional controller board, system board, drive signal cable, or LED connector.


Connectors
21300

Connectors

The following sections provide pinout information for the system board connectors that are used for troubleshooting.

Wide SCSI Connector	Serial Port Connector
Power Connectors	Video Monitor Connector
Parallel Port Connector	Keyboard Connector
Mouse Port Connector


CPU Module Connector
21310

External Wide SCSI Connector (68-pin)

PIN	SIGNAL	PIN	SIGNAL
1	Ground	35	-DB12
2	Ground	36	-DB13
3	Ground	37	-DB14
4	Ground	38	-DB15
5	Ground	39	SCZDPH
6	Ground	40	-DB0
7	Ground	41	-DB1
8	Ground	42	-DB2
9	Ground	43	-DB3
10	Ground	44	-DB4
11	Ground	45	-DB5
12	Ground	46	-DB6
13	Ground	47	-DB7
14	Ground	48	SCZCPL
15	Ground	49	Ground
16	Ground	50	Ground
17	Termpwrb	51	Termpwrb
18	Ground	52	Termpwrb
19	No Connection	53	No Connection
20	Ground	54	Ground
21	Ground	55	-ATN
22	Ground	56	Ground
23	Ground	57	-BSY
24	Ground	58	-ACK
25	Ground	59	-RST
26	Ground	60	-MSG
27	Ground	61	-SEL
28	Ground	62	-C/D
29	Ground	63	-REQ
30	Ground	64	-I/O
31	Ground	65	-DB8
32	Ground	66	-DB9
33	Ground	67	-DB10
34	Ground	68	-DB11


21320

External Narrow SCSI Connector (50-pin)

Pin	Signal	Pin	Signal
1	Ground	26	DB0 #
2	Ground	27	DB1 #
3	Ground	28	DB2 #
4	Ground	29	DB3 #
5	Ground	30	DB4 #
6	Ground	31	DB5 #
7	Ground	32	DB6 #
8	Ground	33	DB7 #
9	Ground	34	DBP #
10	Ground	35	Ground
11	Ground	36	Ground
12	Reserved	37	Reserved
13	Open	38	Termpwr
14	Reserved	39	Reserved
15	Ground	40	Ground
16	Ground	41	ATN #
17	Ground	42	Ground
18	Ground	43	BSY #
19	Ground	44	ACK #
20	Ground	45	RST #
21	Ground	46	MSG #
22	Ground	47	SEL #
23	Ground	48	C/D #
24	Ground	49	REQ #
25	Ground	50	I/O #
# following signal name indicates active low.


Power Connectors
21330

Power Connectors

One 12-pin and two 6-pin connectors provide power to the system board.

12-Pin Power Connector Pin Identification

PIN	SIGNAL	PIN	SIGNAL
1	Power good	7	Ground
2	+5 VDC	8	Ground
3	+12 VDC	9	-5 VDC
4	-12 VDC	10	+5 VDC
5	Ground	11	+5 VDC
6	Ground	12	+5 VDC
6-Pin Power Connector Pin Identification

PIN	SIGNAL	PIN	SIGNAL
1	+5 VDC	4	Ground
2	+5 VDC	5	Ground
3	+5 VDC	6	Ground


Serial Port Connector
21340

Serial Port Connector

Serial Port (male connector)

PIN	SIGNAL	PIN	SIGNAL
1	Carrier Detect (CD)	6	Data Set Ready (DSR)
2	Receive Data (RD)	7	Request To Send (RTS)
3	Transmit Data (TD)	8	Clear To Send (CTS)
4	Data Terminal Ready (DTR)	9	Ring Indicate (RI)
5	Ground


Parallel Port Connector
21350

Parallel Port Connector

Parallel Port (female connector)

PIN	SIGNAL	PIN	SIGNAL
1	Strobe	14	Auto feed
2 - 9	Data bits 0 - 7	15	Error
10	Acknowledge	16	Initialize printer
11	Busy	17	Select input
12	Page end	18 - 25	Ground
13	Select


Video Monitor Connector
21360

Video Monitor Connector

Video Monitor Connector

PIN	SIGNAL	PIN	SIGNAL
1	Red video	9	Ground
2	Green video	10	Sync ground
3	Blue video	11	No connection
4	No connection	12	No connection
5	Ground	13	Horizontal sync
6	Red ground	14	Vertical sync
7	Green ground	15	No connection
8	Blue ground


Keyboard Connector
21380

Keyboard Connector

Keyboard Connector

PIN	SIGNAL	PIN	SIGNAL
1	Serial data	4	+5 VDC
2	Not used	5	Clock
3	Ground	6	Not used


Mouse Port Connector
21390

Mouse Port Connector

Mouse Port Connector

PIN	SIGNAL	PIN	SIGNAL
1	Serial data	4	+5 VDC
2	Not connected	5	Clock
3	Ground	6	Not connected


Troubleshooting Procedures
20990

Troubleshooting Procedures

This section provides a more detailed approach to diagnostic testing and identification of a problem and locating its source.

Preparing the System for Diagnostic Testing

Power-On-Self-Test (POST)

Monitoring POST


Preparing the System for Diagnostic testing
20991

Preparing the System for Testing

Notice: Before disconnecting any peripheral cables from the system, turn off the system and any external peripheral devices.  Failure to do so can cause permanent damage to the system and/or the peripheral devices.

1.	Turn off the system and all external peripheral devices.  Disconnect all devices from the system except the keyboard and video monitor.

2.	Make sure the system power cord is plugged into a properly grounded AC outlet.

3.	Make sure your video display monitor and keyboard are correctly connected to the system.  Turn on the video monitor.  Set its brightness and contrast controls to at least two-thirds of their maximum ranges (refer to the documentation supplied with your video display monitor).

4.	If the operating system normally loads from the hard disk drive, make sure there is no diskette in drive A.  Otherwise, place a diskette containing the operating system files in drive A.

5.	Turn on the system.  If the power indicator LED does not light, refer to Power Indicator Does Not Light.


Power On Self Test (POST)
20992

Power On Self Test (POST)

Each time you turn on the system, the power-on self-test (POST) runs automatically and checks the system board, CPU, memory, keyboard, and most installed peripheral devices.

During the memory test, POST displays the amount of memory that it is able to access and test.  Depending on the amount of memory, it may take several minutes to complete the memory test.   Also, after a soft boot (pressing <Ctrl+Alt+Del>), POST does not test the memory.

Press F2 key if you want to run SETUP

Keyboard.....Initialized

Mouse........Initialized

When this message appears:

Press <Ctrl><A> for SCSISelect(TM) Utility!

Press <Ctrl+A> if there are SCSI devices installed in the system.  When the utility appears, follow the instructions on the monitor to configure the onboard SCSI-2 AIC7880 host adapter settings and run the SCSI disk utilities.  See Chapter 3, Configuring Your System. in the User's Guide.

If you choose not to run the SCSISelect Utility, the boot process continues.

If POST finds an error, it displays an error message and, in case there is a problem with the display, puts out a series of long and short beeps.

One short beep means the system passed POST.
Refer to the POST Error Codes and Messages section for an explanation of the error
beep codes.


Monitoring POST
20993

Monitoring POST

The following table lists keys active during POST and provides a description of errors that may occur.

POST Keys and Errors

ACTION/MESSAGE	DESCRIPTION
If POST Beeps Before Video Appears	Initialization failed before video initialized.  Most beep code errors are fatal; initialization cannot continue. Refer to the POST Error Codes and Messages.
If Monitor Displays Error	Note error; press ESC to continue boot or F1 to enter Setup. Refer to the POST Error Codes and Messages.
To Enter Setup	Use Setup utility after using System Configuration Utility (SCU) to configure entire system. Setup changes specific options, then writes to CMOS, NVRAM.  Press F2 during initialization to run Setup.  If you do not press F2, the boot process continues.
To Enter SCSISelect	Use SCSISelect utility after using SCU to configure entire system. SCSISelect configures specifics about the SCSI controller and SCSI devices. Press CONTROL A during the memory test to run the program.  If you do not press CONTROL A,  the boot process continues.
POST Beeps Once	Initialization has completed.
Enter BOOT Diskette	If prompted, insert the boot diskette.


Diagnostics and PREP Main Menu
30000

Diagnostics and PREP

This chapter provides an overview of the Disk-Based Diagnostics and the PREP utility.

Disk-Based Diagnostics

The PREP Utility


Disk-Based Diagnostics Menu
30010

Disk-Based Diagnostics

Introduction

Hardware Requirements

Loading the Diagnostics

Control Keys

Menus


Disk-Based Diagnostics Menus
30020

Disk-Based Diagnostics Menus

Four pull-down menus appear in the main menu:

DOS

Configure Tests

Run Tests

Help


Introduction to Diagnostics
30100

Introduction to Diagnostics

The Disk-Based Diagnostics include a complete set of test programs. You can use these programs to analyze the operation of the following computer circuits:

•	Microprocessor

•	ROM

•	SCP (system control processor)

•	Real-time clock

•	DMA controller

•	Interrupt controller

•	Drive controllers

•	Video controller

•	System memory

•	Video memory

•	Serial port

•	Parallel port

•	Mouse control circuitry

•	Keyboard

•	Disk drives

•	CD-ROM*

* Requires CD-ROM device driver and MSCDEX.EXE to be installed before running this test.  After testing, remove these drivers, and reboot the system before continuing with other tests.

The Disk-Based Diagnostics include the following features:

•	Automatic and manual test configuration

•	Automatic and manual testing

•	On-line help

•	Test status and result screens.


Diagnostics Hardware Requirements
30200

Diagnostics Hardware Requirements

To use the Disk-Based Diagnostics to test the computer, the computer under test must be bootable with the following minimum hardware:

•	A functioning floppy disk controller and a floppy disk drive

•	A functioning VGA video subsystem.


Loading the Diagnostics
30300

Loading the Diagnostics

Some TSR (terminate and stay resident) programs conflict with the operation of the Disk-Based Diagnostics. Always boot the computer under test using a bootable disk without TSR programs. If you prefer, you can copy the diagnostics to the hard disk to improve performance.

To load the Disk-Based Diagnostics:

1.	Insert the disk into drive A.

2.	Type a:zdiag and press ENTER.

3.	Press any key to continue the program.

The main menu screen appears. The Configure Tests menu is selected with the "Autoconfigure All Tests" option highlighted.


30400

Control Keys

Use the following keys to control the Disk-Based Diagnostics:

Use the arrow keys to move the highlight. The highlighted item indicates the current selection. You can also select a menu item by entering the highlighted letter for that item.

Press ENTER to accept the selection. If a new window appears, make choices in the same manner.

Use the spacebar to enable or disable different subtests and diagnostic monitor configuration options.

Press ESC to terminate the current option and return to the previous menu. If you press ESC at the main menu bar, you return to the DOS menu.

Help is available either by selecting the Help menu, or by pressing F1 when you are in a test or configuration menu.

The TAB key displays a list of subtests from the Run Tests menu for complete tests, automatic tests, and interactive tests.


30500

DOS Menu

This menu allows access to the operating system. Two options are available:

DOS Shell

Allows you to return to the operating system without exiting the diagnostics. To return to the diagnostics, type exit and press ENTER.

Exit

Terminates the diagnostics and returns to the operating system.

Note: If you do not save the current test configuration before you exit, it will be lost.


30600

Configure Tests Menu

This menu allows you to configure the diagnostics, load or save existing configuration files, verify a configuration, and configure the diagnostics test monitor. Always configure your test files on a known good computer.

The following options are available:

Autoconfigure All Tests

Performs a hardware survey and automatically sets the test configuration. When you start the Disk-Based Diagnostics, they automatically proceed to this menu selection. Refer to "Automatic Configuration" later in this section for more information.

Manually Configure Tests

Allows you to set the test configuration manually. The program lists the available hardware tests. When you select one, a window appears with the test configuration choices.

Load A Configuration File

Allows you to load a saved configuration from a disk. All test configuration files use a .CFG file extension. Use the "Input file name" selection to specify the path if the file is not located in the same directory as the diagnostics.

Save A Configuration

Allows you to save a test configuration to a disk. You may store the configuration under an existing name or create a new name. All files are saved with the .CFG file extension. Use the "Input file name" selection to specify the path if you want to save the file in a different directory.

Purge Configuration

Allows you to delete all previous test configuration data and return all Configure Monitor values to their default values.

Verify Configuration

Verifies the test file information with the actual hardware configuration. If they do not match, a warning message appears.

Configure Monitor

Allows you to configure the following options. When you complete your test configuration selections, the program automatically moves to the Run Tests menu

•	Accept -- Closes the menu and accepts the changed menu parameters.

•	Cancel -- Closes the menu and cancels the changed menu parameters.

•	Start Test Automatically -- Enables test startup whenever you start the diagnostics.

•	Exit to DOS Automatically -- Enables automatic exit from the diagnostics upon test completion.

•	Verify Configuration before Running -- Enables automatic configuration verification before running the diagnostics.

•	Assume Equipment Pre-Setup -- Assumes that any required test hardware, such as disk drives or loop-back connectors, is already installed. If you enable this selection and run the diagnostics without the hardware, false error messages will be generated.

•	Log Each Test -- Enables automatic test logging.

•	Log Errors -- Enables automatic error logging.

•	Times to Run Each Subtest -- Determines how many times each subtest is run. If you instruct the diagnostics to run each subtest more than once, they will complete all subtest repetitions before running the next test.

For example, if you instruct the diagnostics to run each subtest three times, and you set the finish criteria to four loops, the diagnostics will run each configured subtest three times before the next test starts. When all subtests are complete, the diagnostics will start the next loop.

•	Finish Criterion -- Determines whether the diagnostics use time, or the number of completed test passes, as the finish criteria.

•	Action On Error -- Determines which action will occur if the diagnostics encounter an error.


30700

Run Tests Menu

This menu allows you to set the test environment and run the diagnostic tests. The diagnostics use two test types: automatic tests, which do not require user input, and interactive tests, which do. Whenever a test is active, the diagnostics will display information about it and the test results.

The following options are available from the Run Tests menu:

Run Complete Test

Runs a complete test series on all configured tests. The tests will stop and wait for user input when an interactive test is run.

Run Automatic Test

Runs only the configured automatic tests.

Run Short Test

Runs a brief operational test. This test performs a minimal check of the hardware.

Run Interactive Test

Runs only the configured interactive tests.

Advanced Utilities

Runs the PREP hard disk low level format. Refer to The PREP Utility

menu.

Notice: PREP destroys all data on the hard disk drive. To prevent the unintentional loss of data:

*	Do not run PREP unless the computer cannot access files from the hard disk or you are installing a new hard disk drive.

*	Do not run PREP until all files are backed up to floppy disks.

View Testing History

Displays the last recorded test history screen.

View Last Error

Displays the last error window.

View Test Window

Displays the last test screen.


30800

Help

On-line help provides information about diagnostics setup, configuration, and running tests. You can access help from the Help menu or by pressing F1.

To access help using the F1 key, you must be in a test or configuration menu. Pressing F1 enters help at the same level as the "Test Help" option in the Help menu.

Three options are available from the Help menu:

Getting Started

Provides introductory information on the Disk-Based Diagnostics.

Configuring Tests

Describes the test configuration process.

Test Help

Provides additional information about individual test configurations, running tests, and test error messages.


30900

Failed Device Listing

Whenever a diagnostic test fails, an error message displays the name of the failed device. The following table lists the failed devices along with the field-replaceable unit where the problem is located.

Field-Replaceable Units

FAILED DEVICE	FIELD-REPLACEABLE UNIT

CPU	CPU module

Audio circuitry	Main board

I/O controller	Main board

Backup battery	Backup battery/

Base memory	Memory module/main board

COM1 serial port	Main board

COM2 serial port	Main board

CPU crystal (oscillator)	Main board

DMA controller	Main board

Extended memory	Memory module/main board

Floppy disk	Floppy disk

Floppy drive	Floppy drive

Floppy drive controller	Main board

Hard drive	Hard drive

Hard drive controller	Hard drive

Interrupt control circuit	Main board

Interrupt controller	Main board

Interval timer circuit	Main board

Interval timer crystal	Main board

Keyboard	Keyboard/main board

Parallel port (278H)	Main board

Parallel port (378H)	Main board

Pointing device (mouse)	Pointing device/main board

Mouse control circuit	Main board

Real-time clock	Main board

Rest/resume button	Main board

ROM	Main board

Speaker	Speaker

SCP	Main board

Video controller	Main board

Video memory	Main board

CD-ROM drive	CD-ROM drive

Controller	CD-ROM drive

CD-ROM cable	Upper bay SCSI drives

Defective Disk	CD-ROM disk


31000

The PREP Utility

The PREP utility prepares the hard disk drive for data storage. When a hard disk drive fails, PREP is a last-resort option to correct the problem and restore the drive to operation.

Notice: PREP destroys all data on the hard disk drive. To prevent the unintentional loss of data:

*	Do not run PREP unless the computer cannot access files from the hard disk or you are installing a new hard disk drive.

*	Do not run PREP until all files are backed up to floppy disks.

To run PREP, type prep / f, press ENTER, and then respond to the on-screen messages as required.

Note: When referring to the drive number, drive C = 0, D = 1, etc.

Before starting disk initialization, PREP asks if you want to proceed:

Press P to prep the hard disk

Press P to proceed. Press any key other than P to return to the operating system prompt.

PREP initializes the hard disk by performing three operations in sequence:

•	Disk initialization

•	Media testing

•	Isolation of unusable disk sectors.

During initialization, PREP displays status messages. A typical drive initialization requires one or two minutes per formatted megabyte of hard disk space.

After using PREP, format the hard disk and install the operating system. If the drive exhibits any of the following symptoms after running PREP, and the computer is properly configured, replace the drive:

•	Format failure

•	Failure during operating system installation

•	Excessive drive errors.


Disassembly and Installation of Options
40000

Disassembly and Installation Procedures

This section contains step-by-step instructions for removal and installation of all the major system components. When you disassemble the server, note the orientation and placement of any cables or shielding that you remove. Each section starts with the process to remove the component.  Installation procedures follow the removal procedures in the same section.  Any procedures that must be performed before removing a component are underlined. Double clicking on the underlined procedure provides a jump to the prerequisite procedure.

Before You Begin

Static Precautions

Contents


Static Precautions
40100

Before You Begin

Caution: Hazardous voltages are present inside the server whenever it is connected to the AC supply, even when the power switch is off. These voltages could cause personal injury. To avoid injury when disassembling the server or adding options:

•	Make sure power switch is OFF and that all peripherals are powered down.

•	Unplug the server and disconnect the line cord from the power supply.

•	Disconnect and remove all external cables, including network and keyboard cables and those connected to telephones, telephone lines, and peripherals.

Caution:  This server, when fully loaded with drives, devices and peripherals can weigh as much as 70.5 pounds.  Do not attempt to lift the server yourself.  Two persons should lift the server using safe lifting practices, if lifting the server is required.

Review Static Precautions


40110

Static Precautions

To protect ICs and circuit boards:

•	Do not remove any static-sensitive device from its protective packaging until you are ready to install it.

•	Use an approved ESD wrist strap to ground yourself to earth prior to handling static sensitive devices. The wrist strap must contain a 1 MΩ safety resistor.

•	Once you remove the device from its protective packaging, do not set it down until it is either installed in the server or returned to its protective packaging.

•	Do not remove the wrist strap until after you reassemble the server.

Caution: Hazardous voltages are present inside this unit when it is connected to an AC power source, even when the unit is powered off. To prevent an electrical hazard during service, or when adding options, disconnect the power cord from the AC outlet and from the unit.


40115

Contents

Side Panel	Fan Shield
Pentium Processor	Top/Right Side Panel
Real-Time Clock	Card Guide Bracket
Video Memory DRAM	LED/Switch Board Board
SIMMs	System Board
Cache Memory	Speaker
Front Bezel	I/O Riser Card
FDD Bracket	I/O Riser Card Mounting Plate
Removable Media Devices	Power Supply
Hard Disk Drives	Feet
Filler Panel and EMI Shield
Option Boards
Fan


System board sockets and connectors
43000


Side panel
40200

Side Panel

     To install boards and peripherals in your system, you must remove the external side panel.

Notice: For proper cooling and airflow, do not operate the system with the side panel removed. Always replace the cover before powering on the system.

Caution: If you are removing the side panel after the system is set up, you must first power off the system and all external devices. Disconnect all external cables and unplug the system.

Side Panel Removal

Side Panel Installation


40300

Side Panel Removal

1.	Power OFF the system

2.	If necessary, unlock the cover.

3.	Remove the three screws that secure the cover to the chassis.

4.	Slide the cover about two inches toward the rear of the system until the tabs inside the side panel clear the slots in the chassis.

5.	Lift the cover free of the chassis and set it aside.


40350

Side Panel Installation

1.	Before replacing the side panel, make sure no tools or loose parts have been left inside the system chassis.

2.	Make sure all option boards are firmly seated in their respective slots and that all interior cables are properly connected.

3.	Insert the metal tabs on the top and bottom of the side panel into their slots on the chassis. Slide the side panel forward as far as it will go.

4.	Replace the three side panel retaining screws and install the padlock, if used.


CPU Module
40400

Pentium Processor

Removal

Installation

Jumper Settings


CPU Removal
40410

Pentium Processor Removal

Caution: If the system has been in operation, the Pentium processor may be hot to
the touch. Allow the processor time to cool off.

1.	Power OFF the system and remove the side panel.

Notice: Observe static precautions.

2.	Push on the clip's tab and use a small screwdriver to release the clip.

3.	Raise the lever on the ZIF socket to the up position.

4.	Carefully grasp the opposite sides of the processor, apply equal upward force on each side, and rock it from side to side until it releases from the socket.

5.	Place the processor and heatsink in an antistatic package.


CPU Installation
40420

Pentium Processor Installation

Note: If you are installing a Pentium processor in the second processor socket, be sure it is the same type and speed as the one in the first socket.

1.	Power OFF the system and remove the side panel.

2.	Remove the processor from its protective packaging.

Notice: Do not touch or bend the processor's pins.

3.	Remove the protective covering from the thermal tape on the bottom of the heatsink. Attach the heatsink to the processor.

4.	Raise the lever on ZIF socket to open (up) position.

5.	Position the processor to that its beveled corner is aligned with the beveled row of holes in the socket.

6.	Insert the processor pins into the socket. Press evenly on the heat sink until the processor seats into the socket.

7.	Lower the ZIF socket lever into the locked position.

8.	Press the clip onto the socket, right side first.

9.	Record the processor in the equipment log.

10.	Refer to Processor Jumper Settings and make sure the speed is set correctly for the processor just installed.


Microprocessor Jumper Settings
40430

Processor Jumper Settings

Caution: Before doing the procedures in this section, make sure that your system is powered off and unplug the AC power cord from the back of the chassis. Failure to disconnect power before opening your system can result in personal injury and equipment damage.

Notice: Observe static precautions. Use an antistatic wrist strap.

When replacing the processor with a processor of a different speed, set jumpers J1A , J2A , J5B, J6B, and J2201 as listed in the following table.

`	CPU Speed Jumper Configurations Table

CPU SPEED	JUMPER SETTINGS
	J1A	J2A	J5B	J6B	J2201
120/60 MHz	1-2	2-3	1-2	1-2	1-2
150/60 MHz	2-3	2-3	1-2	1-2	1-2
133/66 MHz	1-2	2-3	2-3	2-3	2-3
166/66 MHz	2-3	2-3	2-3	2-3	2-3
200/66 MHz	2-3	1-2	2-3	2-3	2-3


Real-Time Clock
40500

Real-Time Clock

	Warning: The RTC IC contains a lithium battery. Lithium batteries can be dangerous. Improper handling or installation of the IC can result in an explosion that could cause serious personal injury to anyone nearby. Do not attempt to recharge the IC, short the terminals together, open the IC package, or dispose of it in the trash or in a fire. Keep the IC away from children. Replace the IC only with an exact replacement. Promptly dispose of the IC according to local regulations.
	Notice: Removing the RTC IC will destroy configuration information. Before removing the IC, record all configuration information from the SCU and from the BIOS Setup utility.

Removal

Installation


Real-Time clock Removal
40510

Removal

1.	Power down the system and remove the side panel.

2.	Locate the RTC IC on the system board.

3.	Remove the RTC IC from the system board. You may need a IC removal tool or a small flat-bladed screwdriver to gently pry the IC free of its socket.

4.	Clip the RTC leads and wrap the IC in insulating tape.

5.	Pack the IC so it cannot be crushed and dispose of it according to local regulations.


Real-Time Clock Installation
40520

Installation

      Notice: Observe static precautions.

1.	Power down the system and remove the side panel.

2.	Remove the new RTC from its protective packaging. If the IC was shipped in a protective socket, remove it.

3.	Straighten any bent leads on the IC. Do not short any leads.

4.	Align the pin 1 indicator dot (A) on the IC with pin 1 on the system board socket and carefully press the IC into the socket.

5.	Replace the side panel and power up the system.

6.	Run the SCU to restore configuration settings to the real-time clock.


Front Panel Cover
40600

Front Bezel

Removal

1.	Power down the system and remove the side panel.

2.	Remove the screw securing the front bezel to the chassis (A).

3.	Squeeze the plastic tabs inside the front bezel so they clear the chassis slots (B).

4.	Pull the left side of the bezel out slightly until the power and reset buttons are free. Slide the bezel to the right until the bezel tabs clear the slots in the chassis (C).


Front Panel Door
40700


Front Panel Buttons and Compression Springs
40800

Front Panel Buttons and Compression Springs

1.	Power down the system and remove the side panel.

2.	Remove the front panel.

3.	Place the front panel on a flat surface with the back of the cover up.

4.	Squeeze the retaining tabs and push the button until the retaining tabs clear the hole in the inner panel.

5.	Remove the button and the spring.


Filler Panel
40900

Filler Panel and EMI Shield

Removal

1.	Power down the system and remove the side panel.

2.	Remove the front bezal.

3.	Place the front panel on a flat surface with the back of the cover facing up.

4.	Remove the screws (A) and EMI shields covering the open bays.

5.	EMI shields are attached to each other in a single sheet. Bend the shields horizontally to separate them from reach other. Remove the shield that covers the bay in which the device will be installed.

6.	Remove the screws (B) that secure the filler panel to the front panel at the bay location which the device will be installed.


Upper Front Bezel
41000

Removable Media Devices

SCSI removable media devices can be installed in peripheral bays A, B, and C. A 3.5-inch diskette drive is always installed in bay D. Additional SCSI devices should be installed in the first available bay from the top (bay A). The following table illustrates the recommended removable media configurations.

	Installing a 5.25-Inch Device  Removing a 5.25-Inch Device  Replacing the 3.5-Inch Diskette Device
Bay A
CD ROM (SCSI address 5)
QIC Tape (SCSI address 2)
DAT Tape (SCSI address 6)
Device must have the internal SCSI terminators installed.

Bay B
2nd CD ROM (SCSI address 6 if no DAT or 2 if no QIC Tape)
QIC Tape (SCSI address 2)
DAT Tape (SCSI address 6)

Bay C
2nd QIC Tape (SCSI address 5 if no CD ROM or 6 if no DAT Tape)
2nd DAT Tape (SCSI address 5 if no CD ROM or 2 if no QIC Tape)
1.2M floppy
1.44M floppy

Bay D
1.44M floppy (always installed)

Notice: The SCSI termination resistors must be installed in the last SCSI
drive of the daisy chain cabling (top media bay A).


Light Pipe
41100

Installing a 5.25-Inch Device

Caution: CD-ROM devices contain a laser system and are classified as
©CLASS 1 LASER PRODUCTS. To use these devices properly, thoroughly read
the documentation provided by the CD-ROM manufacturer, and keep the
documentation for future reference. In case of any trouble with a CD-ROM,
please contact your nearest service representative. To prevent direct exposure
to the laser beam, do not try to open the enclosure.

Use of controls or adjustments or performance of procedures other than those
specified in the CD-ROM manufacturer's documentation may result in hazardous
radiation exposure.

Note: If you are installing a floppy disk drive in bay C, use the internal floppy disk drive
cable provided with the system. If you are installing a SCSI device in bays B or C, you must use the internal SCSI cables.

1.	Power down the system and remove the side panel.

2.	Remove the front bezel.

Notice: Observe static precautions. Use an antistatic wrist strap.

3.	Remove the device from its protective wrapper and place it on an antistatic surface. Record the drive model and serial number in the equipment log.

4.	Set any device jumpers or switches on the device. Refer to the installation procedures that came with the device.

Notice: The SCSI termination resistors must be installed in the last SCSI
 device of the daisy chain cabling (top media bay A).

5.	Using the screws and grounding clips supplied with the drive, attach a plastic snap-in slide rail marked "A" to the right side of the device (E). Install the grounding clips (C) (D) under the screw heads on the right side of the drive.

 Note: Grounding clips (C) (D) are slightly different. Refer to the illustration following Step 6.

6.	Attach a plastic snap-in slide rail marked "B" to the left side of the device (E). Install the grounding clips (C) (D) under the screw heads on the left side of the drive.

 Note: Grounding clips (C) (D) are slightly different. Refer to the illustration below.

Note: Be sure the countersunk holes on the snap-in rail are facing outward. Be sure the flat side of the snap-in rail is parallel to the bottom (circuit board) side of the hard disk drive when the snap-in rail is being installed

7.	Pull the device cables forward out of the peripheral bay until you can reach the connectors on the back of the device.

8.	While supporting the device in front of the system, connect the power

9.	Connect the ribbon data cable to the device.

Note: If you are installing a SCSI device, be certain that you are using the 50-pin SCSI data cable. This cable comes from the system board to the externally accessible bays and ends at the top device in bay A. Do not confuse this cable with the 34-pin floppy disk drive cable which begins on the system board and ends at the floppy disk in bay D.

10.	Position the device so that the plastic slide rails on each side of the device engage the peripheral bay guide rails.

11.	Push the device into the bay until the slide rails lock in place.

12.	Ensure that the peripheral filler panel is removed from the front panel.

13.	Replace the front bezel and side panel, and power on the system.


Lower Front Bezel
41200

Removing a 5.25-Inch Device

1.	Power down the system and remove the side panel.

2.	Remove the front bezel.

Notice: Observe static precautions. Use an antistatic wrist strap.

3.	Squeeze the protruding plastic snap-in rails (C) towards each other and carefully slide the device forward (D).

4.	Support the device in front of the system, and disconnect the power cable (A) and ribbon data cable (B).

5.	Each plastic, snap-in slide rail is attached to the device with two screws. EMI/ESD grounding clips are installed on each rail under the screw heads.

6.	Remove and save the four screws, four grounding clips, and two snap-in slide rails from the device.

7.	Install an EMI (Electromagnetic Interference) shield over the bay from which you removed the peripheral device.

8.	Install the appropriate filler panel into the front panel.

9.	Replace the front bezel and side panel, and power on the system.

10.	Remove the drive serial number from the equipment log.


41250

Removing the FDD Bracket

Replacing the 3.5-Inch Diskette Device

1.	Power down the system and remove the side panel.

2.	Remove the front bezel.

Notice: Observe static precautions. Use an antistatic wrist strap.

3.	Disconnect the power cable and signal cable from the rear of the diskette drive.

4.	Remove the screw that secures the diskette carrier to the front bay.

5.	Slide the diskette carrier back until the tabs hit their stops. Pull the carrier away from the front bay and remove it from the chassis.

6.	Remove the screws that hold the diskette drive to the carrier.

7.	Slide the diskette drive out of the carrier.

8.	Remove the replacement diskette from its protective wrapper and place it on an antistatic surface. Record the drive model and serial number in the equipment log.

9.	Slide the replacement diskette drive into the diskette carrier. Line up the holes on the carrier with the screw holes on the diskette drive. Insert and tighten the screws.

10.	Insert the tabs on the diskette carrier into their slots on the bottom of the bay. Slide the carrier forward until the screw hole in the bay and the hole in the carrier line up. Insert the screw that secures the carrier to the front bay and tighten.

11.	Attach the power cable and the signal cable to the rear of the diskette drive.

12.	Replace the front bezel and side panel, and power ON the system.


41275


Top Cover
41300

Top Right Side Panel

1.	Power down the system and remove the side panel.

2.	Remove the front bezel.

3.	Remove the screws that secure the top cover to the chassis.

4.	Lift the cover up until the brackets inside the top cover clear the chassis.


Feet
41400

Feet

1.	Power down the system.

2.	Lay the system on its side on a padded surface with the feet over the edge of the surface.

3.	Remove the screws that secure the feet to the bottom of the chassis. Remove the feet.


Video Memory
41500

Video Memory DRAM

1.	Power down the system and remove the side panel.

Notice: Observe static precautions.

2.	Locate the video memory socket on the system board.

3.	Remove the video memory IC from its protective packaging and align pin 1 (dot) of the IC with pin 1 of the socket.

4.	Press the IC firmly into its socket.


SIMMs
41600

SIMMs

The system board contains eight SIMM sockets (A) arranged in four banks (0, 1, 2, 3). Each socket can hold a single-sided or a double-sided, 70 ns, 36-bit SIMM module with 8M, 16M, or 32M of memory. The system board supports a maximum of 256MB of memory with 32MB SIMMs. SIMMs must be installed in matching pairs in each bank. However, the sets of pairs can be of different sizes (8M, 16M, or 32M). SIMMs must be installed in either two, four, six, or eight of the SIMM sockets.

When you install additional SIMMs in the sockets on the system board, you must start with the first empty socket above SIMMs already installed. When you remove SIMMs from the sockets, you must start with the first SIMM-filled socket closest to the top edge of the system board.

	SIMM Removal SIMM Installation Memory Configuration Chart


SIMMs Removal
41610

Removal

SIMMs must be removed in pairs. Remove them is this order: Bank 3, Bank 2, Bank 1,
Bank 0.

1.	Power down the system and remove the side panel.

Notice: Observe static precautions.

2.	Gently spread the retaining clips and pull the top edge of the SIMM out of the clips.

3.	Lift the SIMM out of the socket.


SIMMs Installation
41620

Installation

All SIMMs must be installed in pairs. Refer to the memory configuration table that follows for proper installation.

1.	Power down the system and remove the side panel.

     Notice: Observe static precautions.

2.	Position the SIMM above the socket with the notched edge toward the left and the notch in the SIMM aligned with key in the socket.

3.	Tilt the SIMM to about a 45° angle and guide it into the socket.

4.	Gently push the SIMM down until it clicks into place. Be sure the SIMM seats correctly at a 90° angle to the system board and the socket engages the holes in the SIMM.


Memory Configuration Chart
41630

Memory Configuration Chart

The following table shows the distribution of SIMM sizes for each expansion module memory size.

Note: There are eight SIMM sockets on the system board. All SIMMs must be installed in pairs of the same type. The table indicates the number of SIMMs of each type.

Configuration	Bank #0	Bank #1	Bank #2	Bank #3	Total
16MB	2 x 8MB				16MB
32MB	2 x 8MB	2 x 8MB			32MB
32MB	2 x 16MB				32MB
48MB	2 x 8MB	2 x 8MB	2 x 8MB		48MB
48MB	2 x 16MB	2 x 8MB			48MB
64MB	2 x 8MB	2 x 8MB	2 x 8MB	2 x 8MB	64MB
64MB	2 x 16MB	2 x 8MB	2 x 8MB		64MB
64MB	2 x 32MB				64MB
80MB	2 x 16MB	2 x 8MB	2 x 8MB	2 x 8MB	80MB
80MB	2 x 32MB	2 x 8MB			80MB
96MB	2 x 32MB	2 x 8MB	2 x 8MB		96MB
96MB	2 x 32MB	2 x 16MB			96MB
104MB	2 x 32MB	2 x 8MB	2 x 8MB	2 x 4MB	104MB
112MB	2 x 32MB	2 x 16MB	2 x 8MB		112MB
120MB	2 x 32MB	2 x 16MB	2 x 8MB	2 x 4MB	120MB
128MB	2 x 32MB	2 x 32MB			128MB
128MB	2 x 32MB	2 x 16MB	2 x 16MB		128MB
128MB	2 x 32MB	2 x 16MB	2 x 8MB	2 x 8MB	128MB
144MB	2 x 32MB	2 x 32MB	2 x 8MB		144MB
144MB	2 x 32MB	2 x 16MB	2 x 16MB	2 x 8MB	144MB
160MB	2 x 32MB	2 x 32MB	2 x 16MB		160MB
160MB	2 x 32MB	2 x 32MB	2 x 8MB	2 x 8MB	160MB
160MB	2 x 32MB	2 x 16MB	2 x 16MB	2 x 16MB	160MB
176MB	2 x 32MB	2 x 32MB	2 x 16MB	2 x 8MB	176MB
192MB	2 x 32MB	2 x 32MB	2 x 32MB		192MB
192MB	2 x 32MB	2 x 32MB	2 x 16MB	2 x 16MB	192MB
208MB	2 x 32MB	2 x 32MB	2 x 32MB	2 x 8MB	208MB
224MB	2 x 32MB	2 x 32MB	2 x 32MB	2 x 16MB	224MB
256MB	2 x 32MB	2 x 32MB	2 x 32MB	2 x 32MB	256MB


Cache Memory
41700

Cache Memory

Cache memory is installed on the system board.

Removal

Installation


Cache Memory Removal
41710

Removal

1.	Power down the system and remove the side panel.

Notice: Observe static precautions.

2.	Hold the module (B) by its edges. Gently rock the module from side to side until the edge connector pulls free (A).

3.	Place the cache memory module in protective packaging.


Cache Memory Installation
41720

Installation

1.	Power down the system and remove the side panel.

Notice: Observe static precautions.

2.	Remove the cache memory module from its protective packaging.

3.	Position the module (B) so the wide connector section is aligned with the wide section of the connector (A).

4.	Insert the module into the connector.


Option Boards
41800

Option Boards  (UPDATE)

Removal

Installation

The following table list the option board that may be added to the system. It provides information on slot location, memory and I/O addressing, and assigned interupt request numbers (IRQ).

OPTION BOARD	IRQ2	MEMORY ADDRESS	I/O ADDRESS	OPTION SLOT
SMC 8216 (1st)	5	C8000	240	EISA Slot 1
SMC 8216 (2nd)	15	CC000	280	EISA Slot 2
SMC 8115 (1st)	5	C8000	240	EISA Slot 1
SMC 8115 (2nd)	15	CC000	280	EISA Slot 2
EILA8215 (1st) (NE3200)	5	Not Required	Set by SCU	EISA Slot 1
EILA8215 (2nd) (NE3200)	15	Not Required	Set by SCU	EISA Slot 2
DigiBoard (1st)	Not Required	D0000	200	EISA Slot 3
DigiBoard (2nd)	Not Required	D0000	220	EISA Slot 4
MYLEX DAC960P	Set by BIOS	Set by BIOS	Set by BIOS	Lowest PCI Slot1
Adaptec 2940 (X)	Set by BIOS	Set by BIOS	Set by BIOS	Middle PCI Slot1
SMC8416BTA	Set by BIOS	N/A	Set by BIOS	See Install. Guide3
SMC8432BT	Set by BIOS	N/A	Set by BIOS	See Install. Guide3
SMC8434BT	Set by BIOS	N/A	Set by BIOS	See Install. Guide3
Onboard 7870 SCSI	Set by BIOS	Set by BIOS	Set by BIOS	N/A
1.  The sequence for BIOS scanning of slots to determine the primary (Boot) disk controller is as
     follows:

First = Any EISA SCSI controller ( lowest EISA Slot number first )

Second = Lowest PCI Slot  (see Figure 4-12)

Third = Onboard 7870 SCSI controller

Fourth = Middle PCI Slot  (see Figure 4-12)

Fifth = Highest PCI Slot  (see Figure 4-12)

2.  Additional IRQs can be made available as follows:

Disabling Com Port 1 = IRQ4 is available
Disabling Com Port 2 = IRQ3 is available
Disabling Parallel Port = IRQ7 is available

3.  Optimum slot location depends on the operating system used in your system. Refer to the SMC84xx
     Installation Guide included with the LAN board for more information.


Option Board removal
41810

Removal

1.	If you are removing, and not replacing, a card, run the SCU and configure the slot for no card.

2.	Power down the system and remove the side panel.

3.	Disconnect any peripheral cables connected to the optional card being removed.

Notice: Observe static precautions.

4.	Remove the screw that secures the card to the chassis.

5.	Carefully pull the card out of the connector on the system board.

6.	If you do not replace the card, install a slot cover.


Option board installation
41820

Installation

1.	Power down the system and remove the side panel.

Notice: Observe static precautions.

2.	Remove the screw that secures the slot cover to the system chassis. Save the screw.

3.	Slide the slot cover out of the chassis.

4.	Align the card with the card guide and slide the card into the connector on the system board.

5.	Secure the card with the screw you removed earlier.

6.	Run the SCU to configure the system for the new card.


Card Guide Bracket
41900

Card Guide Bracket

1.	Power down the system and remove the side panel.

Notice: Observe static precautions.

2.	Tag and remove any option boards installed.

Note: The cards must be reinstalled in the same slots when you reassemble the system.

3.	Disconnect the speaker wire from J20 on the system board.

4.	Remove the screw that secures the card guide bracket to the chassis.

5.	Remove the card guide out of the chassis.


Card Guide
42000

Card Guide


System Board
42100

System Board

1.	Power down the system and remove the side panel.

Notice: Observe static precautions.

2.	Tag and remove any option boards installed.

Note: The option boards must be reinstalled in the same slots when you reassemble the system.

3.	Tag and disconnect interface and controller cables connected internally to the system board.

4.	Tag and disconnect the power cables connected to the system board.

5.	Disconnect cables connected externally to the I/O riser card.

6.	Release the I/O riser card retainer clips.

7.	Disconnect the front panel cable from the system board.

8.	Disconnect the speaker cable from the system board.

9.	Disconnect the fan cable from the system board.

10.	Remove the 3.5-Inch Diskette Device

11.	Remove the Hard Disk Drive Mounting Bracket

12.	Remove the 10 screws that secure the system board to the chassis.

13.	Lift the system board out of the system.

14.	If you are replacing the system board, remove any system memory SIMMs, cache memory, or video memory and the I/O riser card installed on the board and make a record of the jumper settings so you can correctly configure the new board before you install it.


I/O Board
42200

I/O Riser Card

1.	Remove the System Board.

Notice: Observe static precautions.

2.	Remove the I/O riser card from its socket on the system board.


Front Panel Board
42300

LED /Switch Board Cable Assembly

1.	Power down the system and remove the side panel.

Notice: Observe static precautions.

2.	Disconnect the floppy drive controller cable from the system board.

3.	Disconnect the front panel cable from the system board.

4.	Remove the screw that secures the LED/switch board to the chassis.

5.	Slide the board toward you until the tab clears the bracket.

6.	Remove the LED/switch board from the system.


Disk Drives
42400

Hard Disk Drives

The on-board 7880 Ultra-wide SCSI controller is cabled to a maximum of four Ultra-wide, 68-pin, hard disk drives. The hard disk drives are located in four removable 3.5-inch hard drive bays located toward the rear of the system next to the power supply (A). SCSI termination resistors must be installed in the last hard disk drive of the daisy chain cabling. SCSI drive bay locations and SCSI ID addresses are shown below.

	SCSI ID ASSIGNMENT BAY      DEVICE       ADDRESS   1 First Hard Disk     0   2 Second Hard Disk     1   3 Third Hard Disk     3   4 Fourth Hard Disk     4 Hard Disk Drive Removal Hard Disk Drive Installation


Lower drive bay removal
42431

Removal

1.	Power down the system and remove the side panel.

2.	Disconnect the power cables and the signal cables from the installed drives.

3.	Remove the three screws holding the hard disk drive (HDD) mounting bracket to the chassis.

4.	Swing the HDD bracket out of the chassis.

Note: The next step is optional.

5.	Slide the HDD bracket towards the top of the chassis until the tabs on the bay are free from the chassis. Remove the HDD bracket from the chassis and place it on an antistatic surface.

6.	Remove the hard disk drive by removing the four screws that secure the drive to the HDD bracket.

Note: Perform the next step if you performed Step 5.

7.	Replace the 3.5-inch drive bay. Insert the tabs into their slots on the chassis. Slide the drive bay towards the bottom of the chassis until the tabs hit their stops.

8.	Connect the signal and power cables to the drives.

Note: The hard drive cabling configuration may be different in your system if your system   includes the AHA2740 disk adapter board. However, cable connections to the hard disk drives are the same.

Note: Verify that all cables are seated and routed properly.

9.	Replace the side panel and power ON the system.

10.	Remove the drive serial number from the equipment log.


Lower drive bay installation
42432

Installation

1.	Power down the system and remove the side panel.

Notice: Observe static precautions.

Notice: This system uses single-ended SCSI host adapter cards.
Install only single-ended SCSI drives in this system. Installing
other types of SCSI drives can result in damage to the SCSI host adapters.

2.	Remove the 3.5-inch hard disk drive from its protective wrapper. Record the drive model and serial number in the equipment log.

3.	Set any drive jumpers or switches as described in the installation procedures that came with the device.

Notice: If a drive bezel is installed, it must be removed because it blocks the
air flow around the drive.

Notice: The SCSI termination resistors must be installed in the last hard disk
drive (top drive) of the daisy chain cabling.

4.	Remove the three screws holding the hard disk drive (HDD) mounting bracket to the chassis.

5.	Disconnect the power and signal cables from the installed drives.

6.	Swing the HDD bracket out of the chassis.

Note: The next step is optional.

7.	Slide the HDD bracket towards the top of the chassis until the tabs on the bay are free from the chassis. Remove the HDD bracket  bay from the chassis and place it on an antistatic surface.

8.	Install the hard disk drive component side down. Slide the drive into the bay until the screw holes line up. Secure the drive to the bay with the four supplied screws.

Note: Perform the next step if you performed Step 7.

9.	Replace the 3.5-inch drive bay. Insert the tabs into their slots on the chassis. Slide the drive bay towards the bottom of the chassis until the tabs hit their stops.

10.	Swing the HDD bracket into the chassis and secure it with the three mounting screws.

11.	Connect the signal and power cables to the drives.

Note: The hard drive cabling configuration may be different in your system if your system includes the AHA2740 disk adapter board. However, cable connections to the hard disk drives are the same.

12.	Replace the side panel and power ON the system.


Power Supply
42500

Power Supply

1.	Remove the Hard Disk Drive Mounting Bracket  from the system. It is not necessary to remove the hard disk drives from the mounting bracket.

2.	Tag and disconnect power cables connected to the system board.

3.	Tag and disconnect the power cables connected to all internal peripheral devices.

4.	Remove the four screws that secure the power supply to the rear panel.

5.	Slide the power supply slightly toward the front of the system while moving the power supply towards you until the power supply clears the tabs in the rear panel. You may need to tilt the power supply to clear the rear panel.

6.	Remove the power supply from the system.


System Fan Assembly
42600

Fan

1.	Remove the front bezel.

2.	The fan power cable connects to J32 on the system board. J32 is located below the bottom Pentium socket. Disconnect the fan power cable from the system board.

3.	Grasp the fan and remove the four screws that secure the fan to the chassis.

4.	Tilt the top of the fan towards the rear of the system until the fan clears the LED/switch board assembly, then lift up and remove the fan.

5.	Reverse Steps 1-4 to install the replacement fan.


System Fan and Fan Shield
42700

Fan Shield

1.	Remove the Front Bezel.

2.	Remove the Card Guide Bracket.

3.	Remove the four screws that secure the fan shield to the chassis.


Speaker
42800

Speaker

1.	Remove the Card Guide Bracket.

2.	Rotate the speaker counterclockwise to move the speaker wires up to the 1 oclock position.

3.	Slide the speaker forward until it releases from the speaker mounting tabs.

4. 	Remove the speaker.


Keylocks
42900

I/O Riser Card Mounting Plate

1.	Remove the I/O Riser card

2.	Remove the two screws securing the I/O riser card mounting plate to the rear panel and remove the mounting plate.


Parts Lists
50000

Parts List

This chapter provides exploded views and parts lists for the computer's major assemblies. Part numbers are also provided for related publications, tools, and optional hardware.

Exploded Parts View

Chassis Parts List

CPU Processor Upgrades

Memory Upgrades

Option Boards

Hard Disk Drives

External Media Drives

Keyboard and Power Cord

Related Publications

Tools


Z-SERVER WL Exploded Parts View
50100

Server Exploded Parts View

To view the part number and description of a part, position the mouse pointer over a reference number and press the left mouse button.


Z-SERVER WL Parts List
51000

Server Parts List

REFERENCE  NUMBER	DESCRIPTION	PART NUMBER
1	Cover cabinet left side access panel	158-056432-000
2	Cable FDD data to Mainboard	070170
3	Cable, SCSI 68 pin HDD  to Mainboard	070167
4	Mainboard No processor or DRAM.  NOTE: Mainboards returned for repair or replacement must have processor and DRAM removed.  Replacement boards will not include processor or DRAM.  Extra parts returned are not recoverable.	158-056427-000
5	Processor(s),  See CPU Processor Upgrades
6	Heatsink	147627
7	Clip, heatsink	147693
8	Battery, RTC/CMOS backup,  Dallas 1587	148066
9	Power Supply 300W auto-sensing	190090-06
10	Bracket, FDD	Reference Only
11	Cable, SCSI 4 connector 50 pin, Mainboard to upper bays	070168
12	Board assembly, I/O Riser	030142
13	Board/cable assembly, LED/switch	148236
14	Bracket, Card guide assembly	Reference Only
15	Bracket, HDD mounting cage	Reference Only
16	FDD  3½ 1.44 MB	320023
17	Speaker assembly	160196
18	Fan assembly	148071-01
19	Bezel assembly	158-056434-000
20	Memory SIMM: See Memory Upgrades
21	Hard disk drive: See Hard Disk Drives
22	External media:  External Media Drives
23	Metal plate, Fan cover	Reference Only
24	Filler panel,  5 1/4 bay	902576
25	Mounting plate, I/O Riser	Reference Only
26	Thermal Tape	902567
27	Nameplate	Reference Only
28	Foot	147404
29	Rail, Plastic mounting, right side	146932
30	Rail, Plastic mounting, left side	146931
31	Clips, EMI/ESD Ground	146862
32	Cover, Top/Right side	158-056433-000
33	RFI plate, 5 1/4 upper bay	Reference Only
34	Clips, EMI/ESD Ground	147220
	Chassis, source for side panels	Reference Only
35	Option Boards


Circuit Cards
50300

Option Boards

DESCRIPTION	PART NO.
LAN card, Ethernet, SMC 8432BTA 10mbs PCI NIC	030186
LAN card, Ethernet, SMC9332T 10/100mbs PCI NIC	030149


50250

Cables

MODEL NO. AND DESCRIPTION	KIT MODEL NO.	LOGISTICS PART NO.
ACN-16-UG	200398
Cable EXT Wide SCSI		070436


50275

Miscellaneous Kits

MODEL NO. AND DESCRIPTION	PART NUMBER


Memory Upgrades
50200

Memory Upgrades

SIMM Configuration Rules

SIMM sockets must be populated in pairs.

SIMMs within a pair must both be FPM or EDO.
SIMM pairs can be mixed in any order.

DESCRIPTION	PART NO.
SIMM, 8MB X 36, 72-pin	080621
SIMM, 16MB X 36, 72-pin	080600
SIMM, 32MB X 36, 72-pin	080601
Optional Cache Memory (L2), 256 KB	081680
Optional Video Memory, 512 KB	080586


Drives
50400

Drives

The following sections provide part number information for optional floppy and hard disk drives, tape drives, and optical drives.

3.5-Inch Floppy Disk Drive

5.25-Inch Floppy Disk Drive

Hard Disk Drives

Tape Drives

Optical Drives


3.5-Inch Floppy Disk Drive
50410

3.5-Inch Floppy Disk Drive

MODEL  NUMBER	REFERENCE  NUMBER	PART NUMBER	DESCRIPTION
DF-0110-00		200367	3.5-Inch floppy disk drive kit
	1	320112	FDD, 3.5-Inch, 1.4M
	2	146862	Clip, EMI/ESD Ground
	3	147220	EMI/ESD ground clip
	4	146932	Rail, Plastic Mounting, Right
	5	146931	Rail, Plastic Mounting, Left
	6	146852	Screw, Pan PHP, 6-32 x .25 STL
		903807	Installation Insert


5.25-Inch Floppy Disk Drive
50420

5.25-Inch Floppy Disk Drive

MODEL  NUMBER	REFERENCE  NUMBER	PART NUMBER	DESCRIPTION
DF-0120-00		200368	5.25-Inch floppy disk drive kit
	1	320131	FDD, 5.25-Inch, 1.2M, TEAC
	2	146862	EMI/ESD ground clip
	3	147220	EMI/ESD ground clip
	4	146932	Rail, Plastic Mounting, Right
	5	146931	Rail, Plastic Mounting, Left
	6	146852	Screw, Pan PHP, 6-32 x .25 STL
		903808	Installation Insert


Hard Disk Drives
50430

Hard Disk Drives

DESCRIPTION	PART NO.
1 GB HDD, 68 pin wide SCSI,  Seagate ST31055W	300397
2 GB HDD, 68 pin wide SCSI,  Seagate ST32155W	300396
4 GB HDD, 68 pin wide SCSI,  Seagate STW34371W	300625
9 GB HDD, 68 pin wide SCSI	Reference Only


Tape Drives
50440

External Media Drives

PART NUMBER	DESCRIPTION
320509	4/8G, 4mm, 5.25-inch, half-height, Conner CDT8000 Tape Drive
730073	CD ROM  Drive 4X Toshiba XM5401


Optical Drives
50450

Optical Drives

MODEL  NUMBER	REFERENCE  NUMBER	PART NUMBER	DESCRIPTION
ADO-5401-00	200300		CD ROM  Drive 4X Toshiba XM5401 Kit
	1	730073	CD ROM  Drive 4X Toshiba XM5401
	2	146862	EMI/ESD ground clip
	3	147220	EMI/ESD ground clip
	4	146932	Rail, Plastic Mounting, Right
	5	146931	Rail, Plastic Mounting, Left
	6	146860	Screw, panhead phillips, 6-32
		100950	Manual, CD-ROM
		903531	Insert, Installation


Keyboard, Mouse, and Power Cord
50500

Keyboard and Power Cord

PART NUMBER	DESCRIPTIONS
120148	104-key keyboard, US (Windows 95)
070146	Power cord, 16 gauge, US


Related Publications and Disks
50800

Related Publications

PART NUMBER	DESCRIPTIONS
101757	Server User's Guide
903907	Server Setting Up Guide


Tools
50900

Tools

PART NUMBER	DESCRIPTION
147685	Serial loopback connector, 9-pin
147134	Parallel loopback connector, 25-pin
	Chip rake
148082	System Configuration Utility Diskette
148084	Utilities Diskette
148083	BIOS Flash Code Diskette


PL1

1	158-056432-000	Cover, cabinet side access panel


PL2

2	    070170	Cable, FDD data to system board


PL3

3	   070167	Cable, SCSI 68-pin HDD to system board


PL4

4	158-056427-000	System board, no processor or DRAM


PL5

5	CPU Processor


PL6

6	    147627	Heatsink


PL7

7	   147693	Clip, Heatsink


PL8

8	    148066	Battery, RTC/CMOS backup, Dallas 1587


PL9

9	 190090-06	Power Supply 300W, auto-sensing


PL10

10	Reference Only	Bracket, FDD


PL11

11	   070168	Cable, SCSI 4 connector 50-pin,
system board to upper bays


PL18

18	  148071-01	Fan assembly


PL12

12	   030142	I/O Riser board assembly


PL13

13	  148236	Board/cable assembly, LED/switch


PL14

14	Reference Only	Bracket, Card guide assembly


PL15

15	Reference Only	Bracket, HDD mounting cage


PL16

16	    320023	FDD 3.5-Inch 1.44MB


PL19

19	158-056434-000	Bezel assembly


PL20

20	Memory SIMMS


PL21

21	Hard Disk Drives


PL22

22	External Media Drives


PL23

23	Reference Only	Metal plate, Fan cover


PL24

24	    902576	Filler panel, 5.25-inch bay


PL29

29	   146932	Rail, plastic mounting, right side


PL30

30	   146931	Rail, plastic mounting, left side


PL32

32	158-056433-000	Cover, top right side


PL27

27	Reference Only	Nameplate


PL33

33	Reference Only	RFI plate, 5.25-inch upper bay


PL34

34	   147220	Clips, EMI/ESD ground


PL35

35	Option Boards


PL31

31	146862	Clips, EMI/ESD ground


PL28

28	147404	Foot


PL25

25	Reference Only	Mounting plate, I/O riser


PL26

26	  902567	Thermal Tape


PL17

17	   160196	Speaker assembly


CPU Processor Upgrades

PART  NUMBER	DESCRIPTION
080594	CPU, P54C/120-60
081696	CPU, P54C/200-60