Copyright: Copyright 1992 Intel Corp. World rights reserved.


403E Informational Help File - Main Menu

403E Technical Information is Organized under the following subjects:

Intel Product Update Bulletin (iPUB)	General Product Information

General Section Menu	Product/Order Codes

Board Product History Menu	Certification Letters Menu

System Product History	Known Issues Menu

BIOS History Menu	CMOS Setup Usage

Compatibility List	403E Regulatory Certifications

Orderable Spare Parts List	Shipping Contents

Quick Product Reference	EISA Configuration Utility

Memory Qualifications

Technical Product Summary Information

Introduction to the Model 403E

System Features Menu

Differentiators Menu

Benchmark Report

Additional Information


iPUB 403E General Section Menu

Memory Sub-System

Integrated System Software Availability

EISA Bus Specification

External Cache Adapters

DPT 2012A/90 SW-DOS and SmartROM Fix

Turbocache Issue

IDT Secondary Cache (CacheMod128)


Memory Sub-system

INTEL486(TM) MICROCOMPUTER MODEL 403E MEMORY SUB-SYSTEM

January, 1992

OVERVIEW

The Intel486TM MicroComputer Model 403E uses a 32-bit memory sub-system which departs from previous Intel MicroComputers designs.  The Model 403E uses 36-bit Single In-line Memory Modules (SIMMs) supporting both 1 Mbit and 4 Mbit DRAM technology.  The Model 403E does NOT use any 32-bit memory add-in cards.  Possible configurations of 80 ns, fast page mode memory range from 2 MB to 64 MB.  The Model 403E uses the 8 KB cache internal to the i486TM Microprocessor and also supports an optional secondary external cache.

SIMMS

The Model 403E supports 1 Mbit and 4 Mbit DRAM technology using 36-bit SIMMs leading to four possible SIMM sizes: 1 MB, 2 MB, 4 MB, and 8 MB.  The 1 MB and 2 MB SIMMs use 1 Mbit DRAMs, while the 4 MB and 8 MB SIMMs use 4 Mbit DRAM technology.  Each side of the 36-bit SIMMs is capable of holding eight 4-bit DRAM for data and four 1-bit DRAM for parity.  The following table summarizes the possible SIMMs configurable into the Model 403E.

SIMM Type	DRAM Size	# Data   DRAMS	Size Parity DRAMs	# Parity DRAMs	SIMM Capacity
256 Kb x 36	256 Kb x 4	8	256 Kb x 1	4	1 MB
512 Kb x 36	256 Kb x 4	16	256 Kb x 1	8	2 MB
1 Mb x 36	1 Mb x 4	8	1 Mb x 1	4	4 MB
2 Mb x 36	1 Mb x 4	16	1 Mb x 1	8	8 MB

CONFIGURATION

There are eight 36-bit SIMM sockets on the baseboard divided into four banks of two sockets each.  Interleaving requires SIMMs to be installed in like pairs, but no other restrictions apply. Therefore, upgrades can be done in pairs with any of the SIMMs described above, giving the Model 403E all configurations from 2 MB to 64 MB in increments of 2 MB with only the following omissions: 46, 54, 58, 60, and 62 MB.  This flexibility allows easy migration to a larger memory configuration without the loss of the initial investment and without using proprietary 32-bit memory cards.  In addition, the Model 403E achieves all of this upgrading without a jumper change, because the system automatically determines memory size during the POST.

CACHE

The Model 403E uses the i486 CPU 8 KB internal cache as its primary memory cache.  This four-way set associative cache alone provides the Model 403E a 90% cache hit rate.  The Model 403E achieves an additional performance boost with an optional secondary cache.  The system supports either the 64/128 KB 82485 Intel Turbocache or the AT&T E8CACHE.  The Intel Turbocache is the cache of choice because AT&T has discontinued production of the E8CACHE. The Turbocache is a two-way set associative write through secondary cache module.  The secondary cache is a passive cache, allowing areas of memory to be write protected.  Write protection allows caching of the system BIOS.  Both the primary and secondary cache support bus snooping, cache entry invalidation, and cache flushing.  When a bus master runs a bus cycle, the snooping feature checks the tag RAM with the bus master cycle to ensure cache coherency. The system then invalidates any cache entry modified by a bus master.  Cache enabling or disabling applies to both caches simultaneously.


Integrated System Software Availability Menu
Integrated System Software Availability

March, 1992

The Model 403E, Model 401 and Model 303 integrated system configurations have all been discontinued.  As a result the accompanying software utilities packages have been discontinued as well.  Intel offered the utilities packages to support the integrated system configurations sold directly to distribution.   The affected software utilities packages are UTILITIES, UTILITIESNT, EISAUTIL, and EISAUTILNT.  All the software contained in the utility packages may be obtained from alternative sources.  Please find below a list of the software contained within each utilities package and an alternative source for each package.

UTILITIES (Adaptec 1542)

Software Product	Manufacturer	Package order code
ASPI MS-DOS SCSI	Adaptec (408) 945-8600*	ASW-1410
MS OS/2 SCSI installation	Adaptec*	ASW-1420
Novell 2.15 SCSI device driver	Adaptec*	ASW-1440
SY-TOS tape backup for DOS	Sytron (509) 898-0100	SY-TOS PLUS for DOS
SY-TOS tape backup for OS/2	Sytron	SY-TOS PLUS for OS/2

UTILITIESNT (Adaptec 1542 & No Tape)

Software Product	Manufacturer	Package order code
ASPI MS-DOS SCSI	Adaptec (408) 945-8600*	ASW-1410
MS OS/2 SCSI installation	Adaptec*	ASW-1420
Novell 2.15 SCSI device driver	Adaptec*	ASW-1440

*	Adaptec sells their software through distribution channels.  Contact Adaptec for a complete listing of Adaptec software kits and distribution vendors.

EISAUTIL (DPT 2012A/90)

Software Product	Manufacturer	Package order code
DPT SW-DOS	DPT (407) 830-5522**	SmartROM Kit
DPT SW-NOV	DPT**	SW-NOV
SY-TOS PLUS for DOS	Sytron (509) 898-0100	SY-TOS PLUS
Intel diagnostics (QAPLUS)	DiagSoft (408) 438-8247	QAPLUS
EISAUTILNT (DPT 2012A/90 & No Tape)

Software Product	Manufacturer	Package order code
DPT SW-DOS	DPT (407) 830-5522**	SmartROM Kit
DPT SW-NOV	DPT**	SW-NOV
Intel diagnostics (QAPLUS)	DiagSoft (408) 438-8247	QAPLUS

**	DPT also has a bulletin board service available.  The bulletin board provides the DPT software device driver packages listed above as well as many other useful utilities.  DPT bulletin board: (407) 831-6432.


EISA Bus Specification

January, 1992

The EISA bus specification may be obtained through BCPR services.  Included below  is the BCPR phone number, FAX number, address and BCPR's description of the EISA  packages available.

BCPR Services, Inc.

A Delaware Corporation

1201 New York Ave., N.W.

WASHINGTON D.C. 20005

(202) 962-8349

(202) 962-8343 FAX

As of November 1, 1989, the EISA Specification is no longer subject to a nondisclosure agreement.  It remains copyrighted. To obtain a copy of the EISA Specification, your company has two options.

Complete Package ($450.00):

The Specification, the right to make 5 copies of it, access to the EISA Forum Electronic Bulletin Board at the highest security level, any updates for a one year period, and the right to purchase additional copies from BCPR Services for $100.00 per copy.

Partial Package ($125.00):

The Specification as is, without the right to make any copies, without access to the bulletin board, without any assurance of updates, and the right to purchase additional copies for $125.00 per copy.

Please make any request in writing and send a check or money order in the applicable amount payable to "BCPR Services, Inc.  (EISA)."  Wire transfer services are also available.

Upon receipt of request, BCPR will forward to you a copy of the Specification and, if applicable, your initial password and electronic bulletin board telephone number to permit you to log on the EISA Forum Electronic Bulletin Board.  The Developer's Bulletin Board contains uptodate lists of the names and identities of those persons and companies who have purchased a complete package of the EISA Specification.  Additionally, the Bulletin Board permits the open exchange of questions and answers concerning the EISA Specification. Under no circumstances does BCPR Services, Inc.  assume any responsibility for your use of the information contained on the Bulletin Board or for the responses posed on the Bulletin Board.

BCPR Services, Inc., its successors, predecessors and assigns do not warrant the accuracy of the Specification. Additionally, there is no technical support provided to those acquiring a copy of the Specification.

If you would like a free copy of an information kit which has a technical synopsis, let BCPR know at your earliest convenience.


External Cache Adapter
External Cache Adapters

INTEL486(TM) MICROCOMPUTER MODEL 403E

EXTERNAL CACHE ADAPTORS

January, 1992

   The Model 403E supports a secondary cache.  The Model 403E designed the support logic for the secondary cache around the Intel 82485 Turbocache specification.  Because the 82485 Turbocache experienced some production shipment delays, Intel offered the AT&T E8CACHE as the alternative secondary cache offering.  AT&T also designed the E8CACHE around the Turbocache specification, but did not support the full 82485 feature set.  Both the Intel Turbocache and the AT&T E8CACHE comply to the same connector and electrical specification.

   There are two main differences between the Turbocache and the E8CACHE.  First, the E8CACHE offers a subset of the Turbocache features.  Secondly, the E8CACHE uses .025" square post connector pins, while the Turbocache uses .020" round post connector pins.  The E8CACHE uses the wider diameter pins to alleviate pin breakage problems originally encountered when inserting the cache into the board socket.  Because the two external caches use different diameter post pins, they can not share the same motherboard cache socket.  Depending upon the revision of the 403E motherboard a cache adapter socket may be required for proper installation of the secondary cache.  Please see the tables below for specific adapter socket, motherboard revision and secondary cache combinations.

10 SLOT MODEL 403E CACHE ADAPTER SOCKET REQUIREMENTS

	10 SLOT PBA 508485-XXX	10 SLOT PBA 514894-XXX
E8CACHE	No adapter socket required.	ADAPTER SOCKET REQUIRED  Intel Part # 201218-213
INTEL TURBOCACHE	ADAPTER SOCKET REQUIRED Precicontact Part # 80206-6	No adapter socket required.
   Please note that the adapter socket used with the E8CACHE is different than the adapter socket used with the Turbocache.  The Turbocache adaptor socket for Fab 3 motherboards may be purchased through Precicontact (215-757-1202) or Applied Electronics Marketing (408-441-9610).  The part number for the Turbocache adaptor socket is 80206-6.

8 SLOT MODEL DB403E CACHE ADAPTER SOCKET REQUIREMENTS

	8 SLOT PBA 510324-001/005	New 8 SLOT PBA 510324-006
E8CACHE	No adapter socket required.	ADAPTER SOCKET REQUIRED  Intel Part # 201218-213
INTEL TURBOCACHE	ADAPTER SOCKET REQUIRED Precicontact Part # 80206-6	No adapter socket required.
NOTE:  WHEN INSTALLING THE EXTERNAL CACHE IN THE MODEL 403E, YOU DO NOT NEED TO REMOVE THE SYSTEM BOARD FROM THE CHASSIS.

MOTHERBOARD AND SECONDARY CACHE HISTORY

   In Q4, 1990, Intel began shipping the Fab 3 Model 403E 10 slot product.  The Fab 3 shipped initially with a secondary cache socket that accepted the wider diameter E8CACHE pin, but not the Turbocache.  The Turbocache physically fits very loosely in the E8CACHE socket.  The loose fit causes unpredictable results and reliability problems.  To alleviate the poor fit requires seating a cache adapter socket between the Turbocache and the E8CACHE socket on the motherboard.  The cache adapter socket for the Turbocache is required only on the following Printed Board Assemblies (PBA):

  10 slot PBA 508485-xxx (All revision levels)

   8 slot PBA 510324-001/005

   In Q3, 1991 AT&T announced an End-of-Life plan for the E8CACHE.  Intel can no longer offer the E8CACHE after Q4, 1991.  It made sense at that time to convert the socket on the motherboard to a Turbocache socket.  Therefore, in Q4 1991, Intel began shipping the new Fab 4 Model 403E.  The Fab 4 board now uses the smaller diameter Turbocache socket on the motherboard.  The Fab 4 board now accepts the Intel 82485 Turbocache without requiring an adapter socket.  However, to use the E8CACHE in the Fab 4 board DOES require an adapter socket.  The E8CACHE cache adaptor socket may be purchased through IntelTechDirect.  The part number for the cache adaptor socket is 201218-213.

   The 8 slot DB403E motherboard will convert to the Turbocache socket in Q1 1992.  See the table above to determine the appropriate cache adaptor, secondary cache and motherboard configuration.


DPT 2012A/90 SW-DOS and SmartROM Fix

January, 1992

DPT SW-DOS PROBLEM:

Intel discovered a problem with the SW-DOS device driver used by the DPT 2012A/90 EISA SCSI disk controller on the Model 403E.  In certain DOS environments the DPT SW-DOS device driver caused hard disk data corruption errors*. Intel recalled all the SW-DOS device drivers sold.  In addition, Intel placed the software utilities package EISAUTILS on hold because the SW-DOS device drivers were included in EISAUTILS.  Intel also placed the integrated Model 403E (S403E338I) system on hold because the system configuration included the EISAUTILS package.

Keep in mind that this problem occurs only with DOS Model 403E systems using the DPT 2012A/90 disk controller and the SW-DOS device driver.  Novell, OS/2 and Unix operating systems are not affected by the software problem.

*More information on the data corruption issue is included in the file "DPT 2012A/90 SW-DOS EISAUTILS RECALL" on the iPAN bulletin board. IPAN section: <E>ngineering/296; entry 296.

SMARTROM FIX:

Using a firmware upgrade called SmartROM, DPT has provided a hardware solution. SmartROM is an 8 KB EPROM that provides a hardware alternative for the SW-DOS device driver.  Using the SmartROM eliminates the need for the SW-DOS driver packaged in EISAUTILS.  All DPT 2012A/90 controllers shipped in integrated Model 403E (S403E338I) systems support the SmartROM upgrade.

WHERE TO GET SMARTROM FIX:

1)  DPT Technical Support (407)-831-5522 provides SmartROM upgrade kits.

2) The entire SmartROM kit is in an archived ZIP format on the iPAN bulletin board (503)-693-1493.  The SMARTROM.ZIP file is located under the Hardware/Intel486(TM) Microcomputer Model 403E/Device Drivers & BIOS Files section (<H><A><C> iPAN shorthand).  The ZIP file contains all the hex files, device drivers and instructions necessary to program a set of EPROMs and upgrade the DPT 2012A/90 disk controller.  The ZIP file also contains DPT's four page SmartROM Installation Guide.  Please note, that the SmartROM firmware upgrade requires one 27C64 EPROM and two 27C256 EPROMs.  Also, use the "pkunzip -d" option to preserve the directory structure of the SMARTROM.ZIP file.

3)  SmartROM Kits are also available in low volumes from iPALS (503)-696-7257.

TAPE BACKUP WITH SMARTROM:

With the end-of-life of the EISAUTILS software kit, Intel no longer offers SYTOS PLUS tape backup software for the DPT disk controller.  However, DPT and SYTRON (manufacturer of SYTOS PLUS; (508)-898-0100)), offer tape backup software compatible with the SmartROM firmware.

In addition, both SYTOS and SYTOS PLUS packaged in UTILITIES and EISAUTILS respectively will work with the SmartROM upgrade.  Instructions are included in the SMARTROM.ZIP file.  This may be helpful for users who already own this software. Remember, though, that EISAUTILS is no longer available through Intel.  In addition, SYTRON now sells a more current version of the tape backup software (v1.32) than that available through Intel's UTILITIES or EISAUTILS.

EISAUTILSNT:

EISAUTILSNT is the alternative software choice to EISAUTILS.  EISAUTILSNT provides all the Novell and OS/2 device drivers, but does not provide any DOS device drivers or DOS SYTOS PLUS tape backup software.  Because EISAUTILS is no longer available, customers should order EISAUTILSNT when using Novell or OS/2 with the DPT 2012A/90 on Model 403E (S403E338I) integrated systems.


Turbocache Issue

April, 1992

Problem Description

In March and April ,  the Xpress and LP486 Professional Workstation  products encountered two problems with the Intel 485 Turbocache module.   The two problem involve cache line fills and SRAM data corruption respectively.  Please see the Xpress and Professional Workstation iPUB sections for more details.  The Model 403E  IS NOT affected by the "cache line fill" problem in any way, however the SRAM data corruption may affect some model 403E users.  Turbocache modules with one of the following markings exhibit the SRAM data corruption problem: SX569, SX570, SX571, SX572.  The SRAM components on these modules are defective and will corrupt the data stored in them.  Turbocache modules with "SX" numbers other than those listed above should be used.

Summary

The SRAM data corruption problem with the Intel Turbocache  DOES affect the Model 403E.  Do not use Turbocache modules with the markings listed above in the Model 403E.  The cache line fill problem with the Intel Turbocache DOES NOT affect the Model 403E in any way.


IDT Secondary Cache
CacheMod128 Secondary Cache

August,  1992

As a convenience to our customers, Intel OEM Products Division has added the IDT(Integrated Data Technologies) cache* to its product accessories.  The IDT cache can be used as an alternative to the Intel Turbocache486 for the Professional Workstation, 403E, and Xpress product lines.  The IDT cache is offered in a 128KB direct map configuration and will provide approximately  3% performance increase over a 64KB Turbocache solution.  The 128KB Turbocache will have better floating point performance in some applications.  See the Engineering Details section below for futher information regarding compatibility and problem resolution.  IDT may be reached directly at (408)-727-6116.

Order Code	Description
CACHEMOD128	IDT 128KB direct map cache

Recommended configurations:

Professional Workstation**	IDT Cache Only
403E	Intel Turbocache or IDT cache
Xpress***	Intel Turbocache or IDT cache

* The IDT cache is also available directly from IDT or IDT authorized distributors as part number IDT7MB6098S33K.  This secondary cache was specially modified to include additional Turbocache features and to work properly on Intel platforms.   Please note that the IDT7MB6091 secondary cache WILL NOT WORK correctly in Intel platforms.  Use only the IDT7MB6098S33K (CacheMod128) in Intel platforms.

**  The current revision motherboard for the Professional Workstation supports only the IDT cache.  A new revision currently in development will support both the Turbocache and the IDT cache.

***  Some early Xpress modules only support the IDT cache and can be identified by a warning label on the cache socket.  See the detailed explanation below.

Turbocache486 and IntelTechDirect are trademarks of Intel Corporation

Engineering Details

Two issues have arisen regarding the Turbocache from April through June 1992.  Both issues are quite serious and may cause either data loss or system hangs.  Please see the following iPUB articles for information regarding the two failure modes discovered with the Turbocache:

Article Title	iPUB Page #

Turbocache Issue: Professional Workstation Family (May 92)	LP486GEN-2

Intel486 Xpress Family: Turbocache Issue (May 92)	XPRGEN-3

Turbocache Issue: Intel486 Microcomputer Model 403E (April 92)	403EGEN-8

Resolution:

The IDT7MB6098S33K secondary cache from IDT is a pin compatible replacement cache module for the Intel 485Turbocache.  Intel has tested the IDT secondary cache on the following products:

Xpress CPU modules

Professional Workstation

Model 403E

No motherboard or module modifications are required for the IDT secondary cache to function properly in the existing Xpress CPU modules, Professional Workstation or the Model 403E.  Intel engineering has evaluated and incorporated  extensive compatibility testing to ensure proper operation.  The BXCPU50 module for Xpress does not use a Write-Through Cache module and is not affected in any way with the introduction to the CacheMod128 product.

IDT7MB6098S33K Secondary Cache

The module is a 128KB direct mapped, write-through secondary cache.  The IDT7MB6098S33K uses four IDT71589 32K x 9 Cache RAMs, two IDT71B74 8K x 8 tag RAMs and two IDT74FCT162373 double-density 16-bit latches which operate with an i486 external  CPU clock speed of up to 33MHz.

The most  recent PBA numbers which accept the 128KB Cache module are listed below:

Xpress

518133-003, -004, -005	BXCPU33;  i486DX-33 CPU module
518184-003, -004, -005	BXCPU25SX;  i486SX-25 CPU module
518609-002, -003	BXCPU50DX2;  i486DX2-50 CPU module

Professional Workstation

515338-00x	LP486 motherboard

Model 403E

508485-00x	10 slot revision 3 motherboard (requires adapter socket)
510324-001/005	8 slot motherboard (requires adapter socket)
510324-006	8 slot motherboard
514894-00x	10 slot revision 4 motherboard


iPUB 403E Board Product History Menu

8 Slot Board Product:  DB403E

10 Slot Board Product: B403E


8 Slot Board Product History

May 1992

PBA: 510324

Version 003	effective December 5, 1990

Production release 8-slot baseboard introduced with EISA bus architecture and the Intel486TM 33 MHz microprocessor.

i486TM CPU at U125 P/N 507499001

8742 Phoenix Keyboard Controller V1.00 10 at U44, P/N 510817001

Phoenix BIOS Version 1.10 30.K2

BIOS PROM at U95, P/N 511622001

BIOS PROM at U128, P/N 511623001

Schematic No. 510329

Version 004	effective February 22,1991

Fix implemented to allow versions of Unix and OS/2 to operate due to an erratum in the i486TM microprocessor.  The fix incorporates two PAL changes at U39 and U10 and 1 blue wire to select between either a filtered or latched interrupt.  A printer interrupt problem was corrected for Novell Netware by changing a PAL at U39.  A write protect timing path violated a setup time on the gated write protect signal.  The fix incorporated a PAL change at U75 and is expected to increase the low voltage margin for the Model 403E baseboard.  New Phoenix Technologies BIOS V1.10 33.K2.  See Phoenix BIOS section for BIOS histories.

i486TM CPU at U125 P/N 507499001

8742 Phoenix Keyboard Controller V1.00 10 at U44, P/N 510817001

Phoenix BIOS Version 1.10 33.K2

BIOS PROM at U95, P/N 514100001

BIOS PROM at U128, P/N 514101001

Schematic No. 512358

Version 005	effective July 2, 1991

Changed from C0 step 80486 processor to D0 step.

i486TM CPU at U125 P/N 507499004 (D0 step with heatsink)

8742 Phoenix Keyboard Controller V1.00 10 at U44, P/N 510817001

Phoenix BIOS Version 1.10 33.K2

BIOS PROM at U95, P/N 514100001

BIOS PROM at U128, P/N 514101001

Schematic No. 512358

Version 006	effective April, 1992

Incorporated new BIOS V 1.10 34 K2 and changed the cache socket to the Intel Turbocache.  Previously, the motherboard supported the E8CACHE and required an adapter socket for the Turbocache.  See iPUB application note in 403E General section.  In addition, the new revision  incorporated a new stepping of the 82357 ISP (B step) and 82077AA1 floppy controller.  Removed the latch/filter interrupt option (no longer needed with D0 step 486) and increased the ISP write data hold time.  The new  revision allows concurrent use of Turbocache + Weitek math coprocessor (See iPUB application note).

i486TM CPU at U125 P/N 507499004

8742 Phoenix Keyboard Controller V1.00 10 at U44, P/N 510817001

Phoenix BIOS Version 1.10 34.K2

BIOS PROM at U95, P/N 516738001

BIOS PROM at U128, P/N 516739001

Schematic No. 512358


10 Slot Board Product History

May 1992

PBA: 508485

Version 005	effective December 1, 1990

Production release 10-slot baseboard introduced with EISA bus architecture and the Intel486TM 33 Mhz microprocessor.

i486TM CPU at U130 P/N 507499001

8742 Phoenix Keyboard Controller V1.00 10 at U55, P/N 510817001

Phoenix BIOS Version 1.10 30.K1

BIOS PROM at U110, P/N 510818001

BIOS PROM at U133, P/N 510819001

Schematic No. 508490

Version 006	effective December 15, 1990

PAL at U43 replaced to correctly handle 487 FPU floating point exceptions.

PAL at U43 P/N 512354001

i486TM CPU at U130 P/N 507499001

8742 Phoenix Keyboard Controller V1.00 10 at U55, P/N 510817001

Phoenix BIOS Version 1.10 30.K1

BIOS PROM at U110, P/N 510818001

BIOS PROM at U133, P/N 510819001

Schematic No. 508490

Version 007	effective February 22,1991

Two PAL changes at U61 and U38 and 1 blue wire added due to changes in the EISA chipset specifications, which involved the EISA Bus Controller chip.  A resister (R347) was removed from the 66 MHz clock which bypassed the 74F126 buffer.  Fix implemented to allow versions of Unix and OS/2 to operate due to an erratum in the i486TM microprocessor.  The fix incorporates two PAL changes at U44 and U136 and 1 blue wire to select between either a filtered or latched interrupt.  A printer interrupt problem was corrected for Novell Netware by changing a PAL at U44.  A write protect timing path violated a setup time on the gated write protect signal.  The fix incorporated a PAL change at U80 and is expected to increase the low voltage margin for the Model 403E baseboard.  New Phoenix Technologies BIOS V1.10 33.K1. See Phoenix BIOS section for BIOS histories.

i486TM CPU at U130 P/N 507499001

8742 Phoenix Keyboard Controller V1.00 10 at U55, P/N 510817001

Phoenix BIOS Version 1.10 33.K1

BIOS PROM at U110, P/N 514098001

BIOS PROM at U133, P/N 514099001

Schematic No. 513662

Version 008	effective July 2, 1991

Changed from C0 step 80486 processor to D0 step.

i486TM CPU at U130 P/N 507499004 (D0 step with heatsink)

8742 Phoenix Keyboard Controller V1.00 10 at U55, P/N 510817001

Phoenix BIOS Version 1.10 33.K1

BIOS PROM at U110, P/N 514098001

BIOS PROM at U133, P/N 514099001

Schematic No. 513662

PBA: 514894

Version 001	effective December 1, 1991

A new 10 slot fab eliminated blue wires, incorporated new BIOS V 1.10 34 K1 and changed the cache socket to the Intel Turbocache.  Previously, the motherboard supported the E8CACHE and required an adapter socket for the Turbocache.  See iPUB application note in 403E General section.  In addition, the new fab incorporated a new stepping of the 82357 ISP (B step) and 82077AA1 floppy controller.  Removed the latch/filter interrupt option (no longer needed with D0 step 486) and increased the ISP write data hold time.  The new fab allowed concurrent use of Turbocache + Weitek math coprocessor (Not allowed on fab 3. See iPUB application note).  Lastly, the fab replaced some PALS with Intel EPLDs.

i486TM CPU at U130 P/N 507499004

8742 Phoenix Keyboard Controller V1.00 10 at U55, P/N 510817001

Phoenix BIOS Version 1.10 34.K1

BIOS PROM at U110, P/N 515828001

BIOS PROM at U133, P/N 515829001

Schematic No. 514893


iPUB 403E System Product History Menu
iPUB 403E System Product History

December, 1992

PBA	AA	CONFIGURATION
508485-008	508499-011	S403E334B0
508485-008	508493-011	S403E338B0
508485-008	508493-011	S403E338I
514894-001	515826-001	S403E334B0
514894-001	515827-001	S403E338B0
514894-001	515827-001	S403E338I

Phoenix BIOS Version 1.10 34.K1

Phoenix Keyboard Controller Version 1.00.10

ECU Version 2.1

NOTE:   All Intel configurations of 4 or 8 MB onboard memory ship with 512K x 36, 80 ns SIMMs (iP/N 201136080).

CHASSIS:

Teapo Model TP456B 396 Watt Power Supply, P/N 201321001

Changes made to the Microcomputer Model 403E in Q3/91:

Switched from Delta 396 Watt power supply to Teapo 396 Watt. Delta P/N 201035-001 to Teapo P/N 201321-001.


403e Compatibilty Lists
Compatibility Lists

Hardware Compatibility List

Software Compatibility List


403e Hardware Compatibility List
Hardware Compatibilty List

CLASS	VENDOR	MODEL

Communications	Canon	IX-12 Scanner

Microsoft	Inport Mouse (Bus)

Microsoft	Serial Mouse

Mouse Systems	PC Mouse II (Serial)

Intel Corp.	Connection CoProcessor

Hayes	Smartmodem 2400 V-Series (Ext.)

Hayes	Smartmodem 2400B (Int.)

National Instruments	A2000 Data aquisition

IBM	3278/79 Emulation Adapter

DCA	IRMA 3 Terminal Emulation Adapter

3COM	Etherlink II 3C503

3COM	Etherlink II 3C505

Standard Microsystems	ARCnet PC110

Standard Microsystems	ARCnet PC500

IBM	Token Ring Adapter

IBM 	Token Ring Adapter 16/4

Controllers	Adaptec	1742 (SCSI);EISA

Adaptec	1540/2 (SCSI);ISA

Bustek	BT742A (SCSI);EISA

Future Domain	TMC-16XX (SCSI);ISA

Future Domain	TMC-885 (SCSI);ISA

Ultrastore	Ultra 22-C (ESDI);EISA

DPT	DPT 2012A/90 (SCSI);EISA

Interphase	Barracude (SCSI);EISA

Mylex	DCE376 (SCSI);EISA

Memory	AST	AST Rampage Plus 286

AST	AST Sixpak 286 512K

Intel	AboveBoard Plus 8

Peripherals	Teac	FD-235HF (3.5", 1.44MB)

Teac	FD-55GFR (5.25", 1.2MB)

Maxtor	XT-4170S

Maxtor	XT-4380S

Plus Developement Corp.	Plus HardCard II 40

Quantum	40AT,80AT

Quantum	170S

 	Amdek 	Laserdrive-1 CD-ROM Subsystem

Archive	Viper 60e

Archive	Viper 21505

Iomega Corp.	Bernoulli Box II

Everex	Excel Stream 60

Printers	HP	HP Laserjet Series II

IBM	Proprinter II

Epson	FX-86e

Video	Genoa Systems	Genoa SuperVGA 5400

IBM	IBM VGA Display Adapter

Orchid 	ProDesigner VGA Plus

Video 7	VRAM VGA v1.18


403e Software Compatibilty List
Software Compatibilty List

January, 1991

PBA: 508485

CLASS	VENDOR	PACKAGE	VERSION

Benchmarks	DataBase Group	Power Meter	1.5

Diagsoft	QAPlus	3.12

PC Magazine	PC Labs Benchmarks	5.00

Windsor Tech	PC Technician	2.12

CAD\Graphics	Autodesk	AutoCAD	10.0

Autodesk	AutoCAD for OS/2	10.0

Generic Software	Generic CADD	1.2

Software Publishing	Harvard Graphics	2.12

RIX Softworks Inc.	Colorix	1.2

Z-Soft Corp.	PC Paintbrush	1.0

Communication	DCA	Crosstalk XVI	3.7b

D.C.Hayes	Smartcom III	1.1a

Datastorm	Procomm Plus	1.1B

DCA	Crosstalk Mark IV	1.1

Meridian Tech	Carbon Copy Plus	5.1

DataBase	Ashton-Tate	DBASE III+	1.1

Ashton-Tate	DBASE IV	1.0

Ashton-Tate	Framework III	1.1

Borland	Paradox 386	2.03

Lotus Dev.	Freelance Plus	3.01

Microim Inc.	R:BASE for DOS	3.0

Microim Inc.	R:BASE for OS/2	2.1

Symantec Corp.	Q & A /386	2.0

Development	Borland	Turbo BASIC	1.1

Borland	Turbo C	2.0

Borland	Turbo Pascal	5.5

 	Microsoft	Macro Assembler	5.1

Microsoft	Microsoft C	5.1

Microsoft	Quick BASIC	4.0

Games	Microsoft	Flight Simulator	4.0

Network	3COM	3 Share 	1.5

 	Intel	PCLink II	3.0

Novell	Advanced Netware	2.15

Novell	Netware 386	3.0

See Also:

Intel Certification

Novell Cerification

Operating Env	AT & T	System V 3.2	2.1

Microsoft	Microsoft Windows/286 	2.1

Microsoft	Microsoft Windows/386 	2.1

Microsoft	Microsoft Windows	3.0

Microsoft	MS-DOS	3.3,

Microsoft	MS-DOS	4.01

Microsoft	MS-OS/2	1.21

Qualitas	386 to the MAX	5.0

Quarterdeck	Desqview 386	2.26

Quarterdeck	QEMM 386	5.1

SCO	Xenix	2.3.2 5.22

Spread Sheets	Ashton-Tate	Applause II	1.0

Borland	Quattro	1.0

Computer Assoc.	Supercalc 5	5.0a

Lotus	1-2-3	2.2, 3.0

Lotus	1-2-3 3.5" Protected	2.01

Lotus	Agenda	1.01

Lotus	Symphony	2.2

Microsoft	Excel	2.1c

Utilities	AskSam Systems	AskSam	4.2b

Borland	Sidekick for PM	1.0

Borland	Sidekick Plus	1.00c

Central Point S/W	PC tools Deluxe	6.0

DAC Software	Lightning	5.0

Fifth Generation	Fastback Plus 	2.1

Fifth Generation	Mace Utilities	1990

 	Living Videotext	Ready!	1.00e

Living Videotext	Thinktank	2.41NP

Mathworks	MATLAB-386	3.25

Microsoft	MS-SMARTDRIVE	2.1

Nantucket S/W	Clipper Summer 	87

Utilities (Cont.)	Peter Norton Comp.	Norton Utilities Adv.	4.51

Rosesoft Inc.	Prokey Plus 	1989

Softlogic Solutions	Disk Optimizer	4.05

Symantec Corp.	Grandview	1.01

Traveling Software	Laplink III	3.00a

Xtree Company	Xtree Pro Gold	1.4

Word Processing	Aldus Corp	Pagemaker	3.0

IBM	Displaywrite 4	2.0

IBM	Displaywrite 5	1.0

IBM 	Multimate	4.0

Intel	Aedit	2.13

Micropro Intl.	Wordstar	6.0

Microsoft	Microsoft Word	5.0

Microsoft	Microsoft Works	2.0

Software Pub. Corp.	Professional File	2.0

Software Pub. Corp	Professional Write	2.1

Symantec Corp.	Q & A Write	1.02

WordPerfect	WordPerfect	5.1

Xerox Corp.	Ventura Pub. Prof.	2.0

Xyquest Corp.	Xywrite III	3.53


303 Orderable Spare Parts List
Orderable Spare Parts

May, 1992

PART NUMBER	DESCRIPTION	COMMENTS
514894-xxx	Motherboard, B403E, 10 slot	Ask for latest version
510324-xxx	Motherboard, DB403E, 8 slot	Ask for latest version
504427-002	PBA, Power Distribution
201035-002	Power Supply, 396 Watt
505222-xxx	Fan Assembly
455613-xxx	Bracket, Fan Mount
508972-xxx	Base Chassis Assembly
455620-002	Peripheral carriers
455621-xxx	Panel, Left Side
455622-xxx	Panel, Right Side
455624-xxx	Bezel, Front
455625-xxx	Top, Cover (Chassis)
455623-xxx	Cover, Access
455627-xxx	Foot, Molded
455626-xxx	Bezel, Rear
455630-xxx	Cover, Peripheral
459284-xxx	Panel, Control
457606-xxx	Light Pipe, LED
455629-xxx	Add-in Card Guide
108980-001	DS 1287 Real Time Clock (U132)	Socketed
201148-001	DS NVSRAM (U152)	Socketed
512509-xxx	Accessory Kit (*)
512174-xxx	Serial Cable

512170-xxx	Parallel Cable LPT1

512172-xxx	Parallel Cable LPT2

*The accessory kit for the 403E contains; a User's Guide, Logo Kit, CD set, Antistatic Kit, Errata Sheet, (2) SAK EISA Configurations, SJT 125V.


iPUB 403E BIOS History Menu

May 1992

VERSION 1.10 30.K1/K2	Effective December, 1990

Initial production BIOS release.

BIOS PROMS:

10-SLOT V1.10 30 K1	8-SLOT V1.10 30 K2

Part Number	Location	Part Number	Location

510818001	U110	511622-001	U95

510819001	U133	511623-001	U128

KEYBOARD CONTROLLER:

V1.00 10	V1.00 10

Part Number	Location	Part Number	Location

510817-001	U55	510817-001	U44

Enhancements:

 New Phoenix Technologies BIOS base code.

 Turbo/Deturbo option added as an Intel INT 15 sub-function.

VERSION 1.10 33.K1/K2	Effective May, 1991

BIOS PROMS:

10-SLOT V1.10 33 K1	8-SLOT V1.10 34 K2

Part Number	Location	Part Number	Location

514098001	U110	514100-001	U95

514099001	U133	514101-001	U128

KEYBOARD CONTROLLER:

V1.00 10	V1.00 10

Part Number	Location	Part Number	Location

510817-001	U55	510817-001	U44

Enhancements:

DOS 5.0 no longer hangs the system when loading DOS HIGH. See iPUB article "MS-DOS 5.0 CONFLICTS" in General Information (GEN-13).

User definable drive type 3 now works with all parameters.

Memory count during POST now properly displays when used with certain video cards.

The invalid configuration message has been changed from "Please Run Setup Program" to "Please Run EISA Configuration Utility."

Corrected console redirection to allow WordPerfect to run with redirection enabled, even when no redirected terminal is installed.

Corrected INT 15 code to allow Sidekick and Superkey to load properly.

Floppy interface tape drives (e.g., Irwin) may now be installed without causing a configuration error message.

Corrected improper display of keyboard error messages.

Changed time out valued to prevent printer port inititialization hang.

The BIOS now returns the correct status to the format program when a

diskette change has occurred.

Setup may now be entered via the F2 key when a configuration error is detected and a keyboard is set to "Installed."

Serial routine corrected so that requests for status do not disable interupts.

Fixed error when setting CMOS to all zeros and causing floppy to lock up.

VERSION 1.10 34.K1/K2	Effective December, 1991

BIOS PROMS:

10-SLOT V1.10 34 K1	8-SLOT V1.10 34 K2

Part Number	Location	Part Number	Location

515828001	U110	516738-001	U95

515829001	U133	516739-001	U128

KEYBOARD CONTROLLER:

V1.00 10	V1.00 10

Part Number	Location	Part Number	Location

510817-001	U55	510817-001	U44

Enhancements:

EISA Bimodal INT 15 function call now works correctly.

Corrected a problem with DOS 5.0 and CtrlAltDel.  The system hanged or put out an erroneous Invalid Configuration message if DOS was loaded HIGH.

Correctly resets the math coprocessor after the POST.


iPUB 403E Quick Reference Menu
iPUB 403E Quick Product Reference Menu

Current 10 slot PBA revision:	514894-001
Current BIOS revision:	1.10 34.K1
Current Keyboard controller:	1.00 10
Current 8 slot PBA revision:	510324-006
Current BIOS revision:	1.10 34.K2
Current Keyboard controller	1.00 10
Current EISA Configuration Utility (ECU)	Release 2.1

Intel Corporation makes no warranty of any kind regarding this material, including, but not limited to, the implied warranties of merchant ability and fitness for a particular purpose. Intel Corporation assumes no responsibility for any errors that may appear in this document.  Intel Corporation retains the right to make changes to these specifications at any time, without notice.


403e Certification Letters Menu
Certification Letters Menu

Banyan Certification

Novell Certification


Intel Certification of Banyan Software for the Model 403e
Banyan Certification

January, 1992

**NOTE:  Banyan doesn't assign certification numbers as seen with our other network vendors.

Listed below is the Banyan cerification testing results for the Model 403E:

"Banyan Systems certifies compatibility with VINES 4.10 and 4.11"

CERTIFIED PLATFORM CONFIGURATIONS:

Configuration A:

	Disk	Controller	Video	Motherbd	Tape	Controller
Mfg.	Maxtor	Adaptec	Siig	Intel	Archive	Adaptec
Model	7080S	1740	MGP-11	403E	2150E	1740
Type	80MB	SCSI	Mono	486/33	150MB	SCSI
BIOS	NONE	450201-00E	NONE	Phoenix	NONE	450201-00E
REV	NONE	A	NONE	1.10 33.K1	NONE	A

Configuration B:

	Disk	Controller	Video	Motherbd	Tape	Controller
Mfg.	Maxtor	Adaptec	Siig	Intel	Archive	Adaptec
Model	PO-12S	1740	MGP-111	403E	2150E	1740
Type	1.2GB	SCSI	Mono	486/33	150MB	SCSI
BIOS	None	450201-00E	None	Phoenix	None	450201-00E
REV	None	A	None	1.10 33.K1	None	A

HARD DRIVE SETUP:

Format Procedure:  The disk drives are factory formatted and ready to load VINES.  The disk drives can be low level formatted with the AHA-174X Family configuration and Download Utilities.  Run the ADL and select the low level format from the menu.

CARDS AND SETTINGS I:

CARD	DMA	IRQ	I/O	RAM	ROM	TEST
Racal ES3210	Disable	3		C0000		Intel
Proteon P1990		5				Intel
Banyan ICA		12	100	80000		Intel
Banyan ICA		4	120	F00000		Banyan
Banyan ICA		3	100	FE0000		Banyan

ADDITIONAL INFORMATION:

The Intel Model 403E uses EISA bus architecture.

Base memory of the Model 403E can be set to 512KB.

EISA Configuration used in testing was Version R1.1.

Certified with 16MB Memory.

Certified with 2 Disk Drives of different model and capacity:

Disk 1:  Maxtor 80MB Model 7080S.

Disk 2:  Maxtor 1.2GB Model PO-12S.


Novell Certification Letter for Model 403e
Novell Certification

Certification #S-506
Certificate Date:	February 7, 1991
CPU	80486/33MHz
Fixed Disk Type:	Type SCSI (170 MB) Maxtor XT-4170S
Disk Controller:	DPT PM2012
Disk Driver (v2.1x):	PM12NW2.OBJ (May 1, 1990)
Disk Driver (v3.x):	PM12NW31.DSK (August 30, 1990)
Floppy Disk(s):	1.44MB, 1.2MB
Bus Type:	EISA (Ten 32-bit slots)
ROM BIOS:	Phoenix 80486 EISA ROM BIOS Version 1.10 30.K1
Main/CPU Board Revision:	PBA 508485-003
CPU Memory:	Base 640;  Extended 7168
Video Adapter/Monitor:	VGA/VGA
Vendor Software:	MS-DOS 4.01

TESTED and APPROVED NetWare Compatible with the following products:

Advanced NetWare (v2.15 rev.c)	NetWare for SQL (v2.10b)
SFT NetWare (2.15 rev.c)	NetWare SNA Gateway Token Ring (v1.1)
NetWare 386 (v3.1)	NetWare for Macintosh (v2.0)

Test Results:

Passed dedicated server tests.

Passed bridge tests.

Passed workstation tests.

Notes:

The disk driver does not support nondedicated operating systems.

With NetWare 2.1x, the 3COM EtherLink II (3C503) must be set to option 1 to function properly

with the serial port #2 enabled.

The 3COM EtherLink (3C503) LAN adapter does not function correctly in a file server with NetWare 386 (v3.1) at the default settings.  However, it works at the following settings:  IRQ=2, I/O=300h, Memory=CC00h.

The RX-NET II LAN adapter does not function correctly in a workstation with NetWare 386 (v3.1) at the default settings.  However, it works at the following settings: IRQ=2, I/O=300h, Memory=CC00h.

Novell certification applies only to the product configuration listed above and is not associated with certification from other test agencies.  For additional information regarding specific test configurations, please contact:

Intel Corporation

5200 N.E. Elam Young Parkway

Hillsboro, OR  97124

(503) 696-7257


Introduction to the Model 403e
Introduction to the Intel486 Microcomputer Model 403E

   Add together a 33 MHz i486TM microprocessor, up to 64 MB of interleaved 80 ns memory, an optional 128 KB TurbocacheTM external cache, Weitek 4167 coprocessor support, the high speed 32-bit EISA bus, an eight bay 396 watt tower chassis and you have Intel's microcomputer Model 403E.  A typical Model 403E user may take advantage of the 32-bit EISA bus by using an EISA disk controller or perhaps a high resolution EISA video card.  Another may take advantage of the Model 403E's excellent file server capabilities for network environments by filling up the eight half-height peripheral bays and ten EISA slots.  Still another may tap into the impressive processing muscle and memory available to run a large multi-user and multi-tasking operating system, such as UNIX.  While yet another may take advantage of the i486 FPU and the memory mapped Weitek 4167, both running at 33 MHz.  The Model 403E's ability to run DOS and OS/2 may impress even others.  The Model 403E allows for flexibility in configuration and expansion.  From individual workstations, to high-end compute engines, to large shared network environments, the Intel microcomputer Model 403E provides a complete solution.

   The Model 403E provides two levels of caching to optimize performance.  The i486 CPU's sophisticated four-way set associative 8 KB cache provides a 90 percent hit rate on its own.  In conjunction with the optional secondary 64/128 KB Intel Turbocache, performance improves an average of another five percent.  The nested caching architecture combined with a write through cache algorithm yields near zero wait state read and write performance on virtually every memory access.  Working together with the caches, the Model 403E does two 64 bit reads for an optimized interface with the i486 CPU's burst mode feature.  Supporting multiple memory configurations up to 64 MB, the Model 403E can mix and match 1 MB and 4 MB DRAMs.  A flexible memory architecture supports both single- and double-sided 36-bit SIMM connectors. This flexibility allows for a variety of memory configurations on the Model 403E.  The system also supports two levels of coprocessor integration.  The i486 CPU internal FPU, together with the optional Weitek 4167 coprocessor, supplies all the math functionality required by high-end CAD/CAE and file server applications.  By supporting an on-board floppy controller, PS/2 mouse, two serial and two parallel connectors, the Model 403E frees EISA slots for more sophisticated intelligent peripheral expansion.

   A solid chassis design and 396 watt autoranging power supply rounds out the Model 403E. Carefully designed to minimize ElectroMagnetic Interference (EMI) and Radio Frequency Interference (RFI) the Model 403E compartmentalizes each section of the microcomputer.  The power supply, 33 MHz baseboard and each peripheral is enclosed in its own separate individual container, effectively minimizing the radiation noise and emissions generated.  With these precautions in place, the Model 403E passes the stringent FCC class B and VDE class B emissions requirements with ease.  Additionally, using a surface-mounted baseboard design, the Model 403E assures high long-term reliability.

   The Model 403E's upright tower construction allows the user to place the system under a table or in a corner.  The narrow facade, modest height and deep length keeps the office environment uncluttered by minimizing the impact on space.  In addition, the power on/off switch, reset switch and hard disk indicator lights are all located on the front panel within convenient view and reach. Recessing all the front panel switches to prevent accidental activation again highlights Intel's superior attention to detail.

   The Intel MicroComputer Model 403E provides impressive networking, file server and workstation solutions for the high-end computer market.  The combination of expandability, reliability, 32-bit EISA, two floating point units, two levels of caching, interleaved burst-mode memory and above all, high-speed 32-bit i486 CPU performance ensures the Model 403E a leadership position in the high-end OEM marketplace.


Model 403E System Features Menu

   The following is a detailed component and feature level description of the Intel MicroComputer Model 403E.  This section includes high-level information regarding system design, which provides a good general understanding and background of the workings, functionality and features of the Model 403E.

Memory	Programmable Interval Timer (PIT)

Cache	Phoenix Technologies BIOS

CPU	System Configuration

Math Coprocessor	Phoenix Technologies Keyboard Controller

Floppy Controller	Power Supply

Battery Real Time Clock	Peripheral Bays

Non-Volitile SRAM	Front Panel

I/O Ports	Chassis

EISA Expansion Slots	Cover

Direct Memory Access Controllers	System Fan

Programmable Interrupt Controller (PIC)


Model 403e Memory Features
Memory Features

1. IMPLEMENTATION

   The Model 403E uses 36-bit SIMM slots to provide up to 64 MB of onboard memory.  The system DOES NOT USE ADD-IN MEMORY BOARDS.  Instead, the system provides all memory using the 36-bit SIMMs.  The Model 403E uses an interleaved memory scheme and supports burst mode reads and page mode writes.  The Model 403E supports 1 MBit and 4 MBit DRAM technology.  The interleaved memory scheme requires memory upgrades in pairs of the same size SIMMs.  Therefore, the system board must always have an even number of SIMMs installed.  The Model 403E supports mixing of SIMM sizes which allows for multiple memory configurations up to 64 MB.

2. SPEED & SIZE & TYPE & MAKEUP

   The Model 403E uses Fast Page Mode 80 ns DRAMs surface mounted on a SIMM connector. The memory architecture supports both single and double sided 36-bit SIMMs using 1 Mbit and 4 Mbit DRAMs.  Each 36-bit SIMM uses eight Xbit x 4 DRAMs (where X = 256K or 1M) for 32 data bits and four Xbit x 1 DRAMs for four parity bits.  One parity bit is used for each of the 4 bytes making up the 32-bit word.  A single-sided SIMM uses 12 DRAMs (8 data and 4 parity) while a double-sided 36-bit SIMM uses 24 total DRAMs.

3. ECC

   The Model 403E does not support Error Checking Correction (ECC).

4. EXPANDED MEMORY

   The Model 403E can use extended memory to emulate expanded memory.  The Model 403E does not support expanded memory functionality via hardware, but instead Intel suggests using a software emulation package.  Windows/386 3.0, CTRL386, 386MAXX and QEMM are examples of high-quality extended memory manager packages available on the software market. Because of the Model 403E's high performance, Intel does not recommend using slow expanded memory add-in boards.  Instead, use the software memory manager packages mentioned above to emulate expanded memory with fast 32-bit extended memory.


Cache Features

1. SIZE

   The Model 403E supports both the internal cache of the i486 CPU and an optional external cache.  When a memory address is not found in the sophisticated four-way set associative 8 KB cache of the i486 microprocessor the Model 403E can use the optional Intel Turbocache 64 or 128 KB 2-way associative sectored secondary cache to maintain high system performance.  The secondary cache is a passive cache, which allows for write protection.  The system can cache the BIOS because it can be write-protected.  Using a write through implementation, data found within either cache produces zero wait state performance for reads.

2. WAIT STATES

   Locating data within either cache produces zero wait state* performance.  Zero wait state performance allows the processor to execute instructions without having to wait idle during memory accesses.  Zero wait state produces the optimum CPU performance.  A system cannot maintain zero wait state performance continually because not every address is always located within the cache.  If a cache miss occurs, the processor accesses slower main memory and the CPU must wait for memory to provide data.  The wait state period varies depending on the location of the address in main memory.  Because the i486 CPU can read four words (128 bits) at a time during a burst cycle, the read clock cycle is expressed as clocks required for each read, W:X:Y:Z.

   During a cache miss the Model 403E must access the slower page mode main memory.  The best case wait state scenario on reads is a cache miss page hit.  This produces a 3:1:2:1 clock cycle.  This means that on a page hit it takes three clock cycles to read the first 32-bit address, one clock cycle for the second address, two clock cycles for the third and one clock cycle for the last transfer of the burst.  During a burst transfer** the wait state cycle is 1:0:1:0.  The worst case wait state scenario on reads is a cache miss page miss.  This produces a 7:1:2:1 clock state cycle. This produces a 5:0:1:0 wait state cycle.

   Using a write through cache implementation, the best case wait state scenario on writes is back to back page hits.  This results in a two clock or zero wait state cycle for all writes to the page. Worst case is a back-to-back page miss, which results in a seven clock cycle delay or five wait states.

* NOTE:  Wait states equal the number of clocks minus two.

Example:  Wait States = #Clocks - 2

0 W.S. = 2 Clocks

1 W.S. = 3 Clocks

2 W.S. = 4 Clocks

** NOTE:  Wait states during a burst cycle are calculated a little differently.  After the first read a wait state equals the number of clocks minus one.  This occurs because a burst cycle expects data every clock.

Example: Wait States = #Clocks - 1 (After first read)

0 W.S. = 1 Clock

1 W.S. = 2 Clocks

   Please see Appendix F for a complete wait state table description.

3. SNOOPING

   The i486 CPU cache algorithm implements a snooping feature to ensure cache coherency when the CPU is put into a hold state.  When a bus master device puts the CPU into a hold state, main memory may be accessed or modified.  When the bus master runs a bus cycle, the snooping feature checks the tag RAM with the bus master cycle to ensure cache coherency.  This feature allows intelligent ISA and EISA add-in boards to modify main memory without destroying the integrity of the cache.  The snooping mechanism invalidates any cache entry modified by a bus master.

4. CACHE FLUSH

   The Model 403E supports cache flushing via either hardware or software instructions.  See the i486 MicroProcessor manual for implementation details.  Order No. 240440-002.  Three methods exist to flush the caches.  A user may flush the caches by: 1) resetting the system, 2) writing to the cache control port or 3) using the i486 CPU's internal and external cache flushing features.


Central Processing Unit(CPU) Features

   The Model 403E uses a 32-bit 33 MHz i486 MicroProcessor.  The system supports all the i486 CPU functionality.  This includes backward compatibility with the 8086, 80286 and 386TM CPU as well as the i486 CPU's unique burst mode feature.


Math Coprocessor Features

   The Model 403E relies on the internal Floating Point Unit of the i486 CPU, as well as supporting the Weitek 4167 math coprocessor.  The i486 FPU is essentially the 387 coprocessor moved onto the CPU chip.  By eliminating the external handshaking, FPU performance can increase by a factor of ten.


82077 On Board Floppy Controller

   The Model 403E also integrates an 82077 floppy controller on the system board.  This allows system integrators the ability to purchase hard disk controllers without floppy support.  The 82077 supports 360 KB, 720 KB, 1.2 MB and 1.44 MB floppy disk drives.  Users may disable the on-board floppy controller via the BIOS setup menu.  Disabling the 82077 allows for Model 403E configurations using disk controllers supporting both hard and floppy disk.


Battery and Real Time Clock Features

   The Model 403E uses the Dallas Semiconductor 1287 CMOS Real Time clock.  The real time clock contains 64 bytes of RAM locations, 14 bytes used for clock and control registers and 50 bytes of general purpose RAM.  A self-contained lithium battery provides ten years of data integrity in the absence of power.  The 1287 is directly pin-compatible with the MC146818A clock chip used on the original IBM PC/ATTM.  Therefore, using the 1287 introduces no incompatibilities with the IBM PC/AT standard and only enhances the Model 403E by increasing the real time clock reliability and functionality.


Non Volatile SRAM Features
Non-Volatile SRAM Features

   The Model 403E uses an additional 8 KB of NonVolatile Static RAM (NVSRAM) to store the EISA and system configuration information.


I/O Ports Features

   The Model 403E implements two serial ports and two parallel ports.

1. SERIAL PORTS

   The Model 403E supports two DB9 RS232 serial ports configured as COM1 and COM2.  Both ports may be enabled or disabled via the BIOS setup menu or the EISA configuration utility. The Model 403E supports baud rates of 300, 1200, 2400, 9600, 19,200 and 38,400.  In accordance with the RS232 standard, Intel discourages the use of cables longer than 50 feet in length connected to the serial ports.  COM2 may also be configured as a 25-pin serial connector. However, the 25-pin COM2 option is available as a motherboard option only.  Because of space limitations the Model 403E chassis does not support the option.

2. PARALLEL PORT

   The Model 403E provides two PS/2 bi-directional parallel ports configurable as either LPT1 or LPT2.  The ports may be enabled or disabled for LPT1 and LPT2 via the BIOS setup menu or the EISA configuration utility.

3. MOUSE PORT

   Integrated onto the system board, the Model 403E provides a PS/2 style mouse connector supporting full mouse functionality.  The mouse circuitry implemented via the keyboard controller is completely PS/2 compatible.  Per IBM specifications, the mouse port uses interrupt 12.  The software EISA Configuration Utility enables/disables the mouse port.

4. KEYBOARD CONNECTOR

   The Model 403E provides a PS/2 compatible keyboard connector.  The system will also support AT style keyboards, provided the user configures the connectors with PS/2 to AT converters.

5. SPEAKER PORT

   The Model 403E provides a programmable speaker.  The speaker provides error beep code information and may be programmed via port 61H per the IBM PC/AT specification.


EISA Expansion Slots

   The Model 403E has ten 32-bit EISA expansion slots.  The expansion slots all maintain full ISA compatibility.  In addition, the EISA slots extend the functionality of the ISA bus providing the major speed and functional enhancements.  Six slots support full bus mastering, while the remaining four are slave slots.  The ten EISA bus slots run at 8.33 MHz.


Direct Memory Access Controllers

   The Model 403E provides seven ISA compatible DMA channels through the system's EISA bus implementation.  The EISA DMA controller also supports DEMAND and BLOCK mode DMA transfers.  These modes allow multiple continuous transfers and high speed bus cycles that achieve data transfer rates up to 33 MB/sec.  Every DMA channel can be programmed for 8, 16 or 32-bit DMA device size.  Also, all channels support ISA compatible, Type A (5.33 MB/sec), Type B (8.00 MB/sec) or Burst DMA (33 MB/sec) timing modes.


Programmable Interrupt Controller (PIC)

   The Model 403E supports an ISA compatible EISA interrupt controller.  The EISA PIC provides 15 interrupts configurable as level or edge sensitive.


Programmable Interval Timer (PIT)

   The Model 403E supports two Programmable Interval Timers providing five system counters. The system uses Counter 0 as the system clock tick.  Counter 1 is used to trigger DRAM refresh cycles, while Counter 2 provides programming frequencies for the speaker.  The system can use Counter 3 as a fail-safe timer for user processes.  Counter 4 is not implemented (per the EISA specification) and counter 5 is free for use.


Phoenix Technologies BIOS Features

   Phoenix Technologies BIOS duplicates the IBM BIOS functionality, including some Intel-specific additional features.

1. POST

   The BIOS always performs a Power-On-Self-Test during system power-up or reset.  The POST initializes and tests system memory, add-in memory, cache circuitry, DMA, PIC, PIT, keyboard controller, serial and parallel ports and the real time clock.  Please refer to iPAN, the Intel Product Assistance Network for specific POST procedures (see Appendix for iPAN information).

2. INTERRUPTS

   The BIOS supports all the IBM PC/AT BIOS interrupts and associated functions specified in the IBM PS/2 and Personal Computer BIOS Technical Reference.

3. SIZE

   The Model 403E uses a 128 KB BIOS using two Intel 27512-25 EPROMs.  The Model 403E reserves the 128 KB of memory from E0000 to FFFFF for BIOS use.  Per IBM specifications, the address area FE0000 to FFFFFF can also be used to map the BIOS into.


Model 403e System Configuration
System Configuration

   The Model 403E uses two utilities to configure the system and set CMOS RAM.  Previous Intel computers used the BIOS setup menus exclusively for system configuration.  EISA introduced a new configuration method, the EISA Configuration Utility (ECU).  The ECU executes from floppy and replaces the BIOS setup menu as the primary configuration tool.  The BIOS setup menu exists now primarily to allow the system to boot a floppy.  The ECU contains all other configuration options.

1. BIOS SETUP

   The BIOS includes minimal system set-up capabilities.  The primary setup function is to configure a system capable of booting off of a floppy.  Menu driven, the setup routine provides minimal system configuration and supports the following features:

A) 24-hour Time of Day Clock and Month/Day/Year.

B) Two 360 KB, 720 KB, 1.2 MB or 1.44 MB floppy disk drives.

C) VGA/EGA/CGA/MDA video support.  Also, allows for no video card installed to support dedicated network server applications.

D) Keyboard Enable/Disable.  Choose Disable to support diskless network server applications.

E) 512-640 KB.  User may enable or disable the 128 KB memory space from 512 KB to 640 KB in base conventional memory.  This provides compatibility with some older ISA add-in boards which make use of memory above 512 KB.

F) Enter Setup.  Allows user to enter ALWAYS or at PRE-BOOT.

G) Speaker Enable/Disable

H) Serial Ports COM1: Enable/Disable COM2: Enable/Disable

I) Onboard Floppy Enable/Disable

J) Console Redirection to COM1: Enable/Disable COM2: Enable/Disable

2. EISA CONFIGURATION UTILITY (ECU)

   The Model 403E uses an EISA Configuration Utility (ECU) to define the system configuration. Instead of using BIOS setup to configure the system, the ECU configures the system from floppy. The ECU determines the EISA cards installed in the system and modifies CMOS memory accordingly.  The user must run the ECU anytime he/she modifies the system configuration. Adding or removing EISA boards, floppies, hard drives, video cards, changing I/O or memory addresses, DMA channels or interrupts all modify the system configuration.  The ECU is menu-driven, making the configuration a fairly straight-forward and simple task.  If confusion or errors occur the user can return the system to its default configuration using the DEFAULT jumper on the baseboard.  Moving the DEFAULT jumper to E7-E8 will clear the ECU CMOS settings and return the system to the factory default state.  Please see Appendix L for the default settings. Below is a list of the ECU's standard functions.

A) Amount of System Board Extended memory present.  Detects and configures all memory above one MB (extended memory) available for use.

B) Amount of System Board Base memory present.  User may enable or disable the 128 KB memory space from 512 KB to 640 KB in base conventional memory. This provides compatibility with some older ISA add-in boards which make use of memory above 512 KB.

C) RAM Shadowing Options Group.  Enables/Disables shadowing of video and system BIOS.  Also, enables shadowing for user definable drives types 48 & 49.

D) Cache Control Enables/Disables both caches.  The system enables both caches or disables both caches simultaneously.  It does not support enabling of one cache and disabling the other or vice versa.

E) Floppy Drive Options Group.  Enables/Disables the 82077 onboard floppy and configures two 360 KB, 720 KB, 1.2 MB or 1.44 MB floppy disk drives.

F) Hard Disk Drive Options.  Configures two hard disks.  The BIOS supports 47 specific drive types numbered 1 through 47.  The BIOS also supports two additional user-configurable drive types, types 48 and 49.  Types 48 and 49 allow the user to specify the number of heads and cylinders, sectors per track, landing zone and the pre-composition for any type of hard disk.  Types 48 and 49 allow for easy ESDI, RLL and large capacity ST506 disk integration.  The ECU also supports auto-configuration of hard drives by disk controllers supporting the feature.

G) Parallel Ports LPT1: Enable/Disable LPT2: Enable/Disable

H) Serial Ports COM1: Enable/Disable COM2: Enable/Disable

I) Console Redirection to COM1: Enable/Disable COM2: Enable/Disable

J) Monitor Type defines a VGA, EGA, CGA, or MONO system monitor.

K) Keyboard Enable/Disable.  Choose Disable to support diskless network server applications.

L) Mouse Control Enables/Disables the mouse

.

M) Speaker Enable/Disable

N) CPU speed sets system for Turbo (33 MHz) or Deturbo (8.33 MHz).Allows for installation of copy-protected software sensitive to processor speeds. The Model 403E by default runs at 33 MHz.  The processor speed may also be adjusted via the keyboard controller using CTRL-ALT-1 (deturbo) and CTRL-ALT-2 (turbo).

O) Enter Setup.  Allows user to enter setup ALWAYS or at PRE-BOOT.

3. INDEPENDENT ECU UTILITIES

   The ECU also comes with several individual configuration executables.  Each program modifies a specific feature of the system without having to run the ECU.  The system supports the following programs:

A) Keypass	System Boot password feature.  Prevents unwanted access.
B) Keylock	Locks the system keyboard.
C) Cache	Enables or disables the cache
D) Speaker	Enables or disables the speaker
E) Fast	Sets system to run at 33 MHz
F) Slow	Sets system to run at 8.33 MHz


Phoenix Technologies Keyboard Controller Features

   In conjunction with the BIOS, the Model 403E uses an Intel 8742 keyboard controller programmed by Phoenix Technologies.  The keyboard controller supports the following features:

1. CTRL-ALT-DEL:  SYSTEM RESET

   CTRL-ALT-DEL resets the system by jumping to the beginning of the BIOS and running the POST.

2. CTRL-ALT-INS:  SYSTEM SETUP

   CTRL-ALT-INS (CTRL-ALT-0 on the calculator keypad for 101 keyboards) will pull up the BIOS setup screen.  This feature allows for convenient system modification without the use of floppies.

3. CTRL-ALT-1:  DETURBO

   CTRL-ALT-1 on the calculator keypad slows the system down to a simulated 8 MHz operating rate.  By pulse modulating HOLD to the CPU, the system allows for the installation of copy-protected software sensitive to processor speeds.  CTRL-ALT-1 emanates a low speaker tone when invoked.  The 8 MHz speed remains active until the user either turns the system off and on or types CTRL-ALT-2 to return to turbo speed.  The CPU processor speed may also be configured via the BIOS setup menu.

4. CTRL-ALT-2:  TURBO

   CTRL-ALT-2 on the calculator keypad returns a slowed system to full 33 MHz CPU operation. CTRL-ALT-2 emanates a high speaker tone when invoked.  The Model 403E by default runs at 33 MHz speed.  The CPU processor speed may also be configured via the BIOS setup menu.

5. CTRL-ALT-+:  KEYSTROKE CLICK

   CTRL-ALT-+ on the calculator keypad sets the speaker click level for keystrokes.  CTRL-ALT-+ adjusts the sound level of the keystrokes from not audible to loud with several levels in between.

* NOTE:  Features 2, 3 and 4 may be overridden by the DOS country code driver.


Power Supply Features

1. WATTS

   The Model 403E uses a 396 watt autoranging power supply from Taepo.  Please see the Appendix for specific voltage and current ratings for the power supply.

2. POWER DISTRIBUTION

   The power supply plugs two of its five connectors into a power distribution board that supports four peripheral connections.  Of the remaining three connectors, one connector runs the system cooling fan.  The 396 watt power supply provides enough current to support any peripheral or add-in board configuration.

3. 115/230 VAC

   The power supply supports both 115 and 230 VAC.  The power supply is autoranging and requires no switch settings to go from 115 to 230 VAC.


Peripheral Bays

   The Model 403E stacks vertically two full-height and four half-height peripheral bays into the chassis.  Four half-height peripheral bays are accessible from the front of the system to be used for floppy and tape drives.  An additional four half-height or two full-height bays are hidden from sight and may be used for hard disks and optical disks.  The integrator must remove the Model 403E cover to install any peripheral.  Each peripheral is moored in a three-sided metal seat that effectively reduces EMI and RFI emissions.


403e Front Panel
Front Panel

   Many government contracts require the use of front panel switches so handicapped individuals may easily use the system.  With this in mind, the Model 403E provides a front panel with the following features.

1. RESET

   The Model 403E supports and fully implements a front panel hardware reset switch.  This switch allows the user to perform a hardware reset to the system baseboard at any time.  The switch simply completes the connection to a Dallas Semiconductor 1232 MicroMonitor chip on the baseboard, which contains the voltage debounce and reset circuitry.  The switch is deeply recessed into the front panel to prevent accidental invocation.  This is a non-trivial feature, considering the potential loss of data and file corruption that can occur when a UNIX or XENIX system is improperly shut down.

2. KEYLOCK

   The KEYLOCK HAS NO FUNCTION on the Model 403E.  It is a carry over from the Models 303 and 401, which used a keylock.  To prevent access to data stored on the computer, the system uses a password function instead.  Please see the Password function in the BIOS section for more details.  Be aware that the keylock DOES NOT lock the system cover and there are no plans to remove it.

3. POWER ON/OFF SWITCH

   Recessing the power on/off switch into the bottom front of the chassis prevents an individual from accidentally turning the system off.

4. INDICATOR LIGHTS

   The front panel also provides two LED indicator light tubes providing disk access information. The tubes are visible from a sitting or standing position.


Model 403e Chassis Features
Chassis Features

1. SILVER CHROMATE

   The Model 403E chassis is constructed out of sheet metal dipped in silver chromate to prevent corrosion and reduce EMI and RFI emissions.

2. COMPARTMENTALIZED

   The chassis effectively compartmentalizes each section of the computer.  The system board is contained within its own compartment.  The power supply and peripheral section are in a separately isolated compartment.  In addition, the serial and parallel cable connectors to the system board are enclosed in an EMI can.  By enclosing each section in a separate cage, the Model 403E reduces an enormous amount of emissions, producing a very reliable and quiet system design.  The Model 403E passes the stringent FCC class B emissions tests with good margins.

3. STABILITY

   The sturdy construction of the chassis and two stabilizing legs help to protect the system from shock and vibration.  In addition, the system has plastic back bumpers which permit the system to sit flush with a wall without disturbing any of the power cabling or air circulation.  The Model 403E provides accessibility to all I/O slots from the top and hides the slots and cabling from view with a flip-top door.


Model 403e Cover Design
Cover Design

   Durable molded plastic covers the system chassis.  The plastic provides protection from dirt, dust and corrosion.


Model 403e System Fan
System Fan

   The Model 403E provides a system fan to maintain a consistent operating temperature within the case.  The system fan exchanges internal and external air at the rate of 90 Cubic Feet per Minute (CFM).


403e Differntiators Main Menu
Differentiators Menu

Memory Architecture

EISA

Emissions

Compatibility

Expandibility

Power Supply

Customer Support


Memory Architecture

   The Model 403E implements an impressive memory architecture.  The system supports both the i486 CPU primary cache, as well as the optional Turbocache secondary cache.  This allows the processor to execute more instructions instead of sitting idle during memory accesses.  The memory configurations scale up to 64 MB of 80 ns DRAM.  The versatile 36-bit single and double-sided SIMMs provide multiple possible memory configurations.  The entire cache architecture, interleaved 80 ns DRAM and the burst mode feature of the i486 CPU provides zero wait state performance virtually all the time.


403e EISA Information
EISA

   After much public discussion and over two years of development the EISA bus is a reality. The Model 403E is ready to take full advantage of all the enhancements and improvements EISA provides.  The future for high-end PC/AT computing is clearly a 32-bit I/O solution.  EISA provides the capabilities to alleviate the I/O bottleneck.  The Model 403E is well-positioned to provide the OEM a high-powered 32-bit EISA solution.


Model 403e emissions
Emissions

   The Model 403E uses a 66 MHz crystal immediately divided by two to supply the i486 CPU and board with a clean 33 MHz clock signal.  Signals on the system board running at these high frequencies can cause strong interference with other electronic devices.  Strict FCC regulations require effective containment of all EMI and RFI emissions.  The Model 403E's compartmentalized cell design effectively isolates the various system components from each other and contains the emissions within the Model 403E chassis.  The Model 403E uses the same Model 303 chassis that received FCC Class B certification using a 66 MHz clock crystal.

   Any signal trace or component known to generate high levels of emissions have been carefully placed on the system board.  The trace and component layout has been designed to optimally minimize their impact on emissions and the operation of other components.  The board design minimizes all the trace lengths and avoids sharp 90 degree turns to prevent the signals from acting like antennas.  In addition, all the serial, parallel, keyboard and mouse ports use Resistor-Capacitor networks and ferrite beads to absorb as much spurious noise as possible.


403e Compatibility
Compatibility

   The Model 403E incorporates all the design and compatibility experience developed on all of Intel's previous MicroComputer Models.  Intel maintains a large group of compatibility partners who conduct continual functionality testing of their hardware and software on the Intel MicroComputer platforms.  In addition, Intel uses a well-staffed compatibility department and outside testing companies to fully evaluate each Intel MicroComputer product.  The combination of five years of design and compatibility experience, coupled with an extensive network of compatibility relationships with leading industry vendors, gives the Model 403E a powerful edge.


403e Expandability
Expandability

   The Model 403E chassis supports eight half-height peripherals for expansion.  Using a SCSI controller card, which supports seven SCSI peripherals, the user can fill all eight bays with SCSI peripherals using just one SCSI adapter card.


403e Power Supply
Power Supply

   The Model 403E uses a 396 watt autoranging power supply.  The Model 403E's ability to support large current requirements of multiple peripherals gives it a decided edge in file server and network markets.


403e Customer Support
Customer Support

   The Intel OEM Products Division has an extensive support service available known as IntelTechDirectTM.  IntelTechDirect includes a monthly update bulletin (iPUB) which includes information concerning compatibility lists, board revisions and other sundries on the Intel ISA product line.  An on-line phone support system (iPALS) is also in place to assist the distributor, the OEM and the field.  Finally an on-line bulletin board service exists, which contains valuable product, demo and general AT information, all accessible via a modem.


Model 403e Benchmarks

   Please contact the Intel Product Assistance Network bulletin board for information regarding Model 403E benchmark and performance data.


403e Additional Information Menu
Model 403E Additional Information Menu

Standard Configuration	Baseboard Environmentals
Dimensions	Model 403E Systems Environment
Regulatory Standards	Jumpers Settings
Coprocessors	Default BIOS and ECU Settings
System Memory	Independent ECU Utilities
Cache	Support Information
Power Supply


403e Standard Configuration
Standard Configuration

Floppy:	One TEAC 1.44 MB & one TEAC 1.2 MB

Memory:	Interleaved 4MB (expandable up to 64 MB)

Cache:	128 KB Turbocache485 (Optional)

Serial:	2 DB9 RS232 connectors (COM1 & COM2)

300,1200,2400,9600,19200,38400 BAUD rates

Parallel:	2 PS/2 bi-directional (LPT1 and LPT2)

Mouse:	1 PS/2 style mouse connector

Keyboard:	1 PS/2 style keyboard connector

10 EISA slots:	Supports 8 & 16-bit ISA, 32-bit EISA add-in cards

6 bus master; 4 slave

Bays:	2 full-height & 4 half-height peripheral bays

Power supply:	396 watt

Drive Carriers:	The 403E B0 configurations ship with 6 5.25" peripheral 	carriers.  3.5" carriers are also available as spare parts.


Model 403e Dimensions
Dimensions

SYSTEM

Height	=	24.50"	(62.23 cm)

Width	=	6.85"	(17.40 cm)

Length	=	27.75"	(70.49 cm)

Weight	=	80 lbs	(36.36 k) (standard configuration)

SYSTEM BOARD

Width	=	13.6"	(34.50 cm)

Length	=	13.0"	(33.00 cm)


403e Regulatory Standards
Regulatory Standards

SAFETY

USA	UL 478, Edition 5

Canada	CSA C22.2 No. 220

Europe	IEC 950, IEC 380 & VDE 0806

EMI/RFI

USA	FCC; CFR 47 Part 15 Subpart J, Class B

Canada	DOC; CRC c.1374, Class B

Europe	VDE 0871 Level B


Additional Math Coprocessor Information
Coprocessors

i486 CPU internal FPU

Weitek 4167 Co-Processor (optional)


403e system Board Memory
System Memory

   1. Maximum 64 MB

   2. Interleaved, Page Mode DRAM interface. Must upgrade memory in SIMM pairs.

   3. Supports 80 ns 1 MB and 4 MB DRAMs.

   4. Can mix and match DRAM sizes in pairs.

   5. No add-in memory boards.

   6. Write Through cache. 0 WS reads and writes.

   7. Burst mode reads.

   8. Supports single and double-sided 36-bit SIMMs

   9. Wait states:

Reads	Clock Cycles	Wait States
Turbocache read hits	2:1:1:1	0:0:0:0
DRAM page hit	3:1:2:1	1:0:1:0*
DRAM page miss	7:1:2:1	5:0:1:0*
Writes	Clock Cycles	Wait States
DRAM back to back page hits	2	0
DRAM first page miss	2	0
DRAM back to back page miss	7	5

* NOTE:  Non-Burst Wait States = #Clocks - 2

  Burst Wait States = #Clocks - 1 (After 1st read)


Additional Cache Information
Cache

1.  i486 CPU internal 8 KB four-way set associative

    Approximate 90% hit rate

    Bus snooping to ensure cache coherency

    Cache entry invalidation

    Cache flushing supported

    Disable cache via BIOS

2.  Turbocache 128 KB external cache (Optional)

    2-Way Set Associative Sectored

    Write Through

    Improves System performance by 5% with i486 CPU cache enabled

    Bus snooping to ensure cache coherency

    Cache entry invalidation

    Cache flushing supported

    Disable cache via BIOS


Additional Power Supply Information
Power Supply

          396 watt

          Manufacturer	Taepo

          AC voltage          115/230 nominal

          AC frequency        50/60

          Maximum continuous current:

                         +5V	45A

                         +12V	13A

                         12V	1A

                         5V	.5A

          Peak current   +12	19A for 15 seconds

          Minimum current:

                         +5	11A

                         +12	0A

                         12	0A

                         5	0A

          Switching power supply

          5 peripheral connectors


403e Baseboard Environmental Conditions
Baseboard Environmentals

Ambient temperature

On:	0  55 degrees C

Off:	40 to +70 C

Relative humidity

On:	to 85% at 55 C

Off:	to 95% at 55 C

Altitude

Operating:  ambient air temp, to 10,000 Ft.


403e System Environmentals
Model 403E System Environmentals

 	Ambient temperature

On:	5.0 - 40 degrees C

Off:	-34 - 60 C

Relative humidity

On:	to 85% at 55 C

Off:	to 95% at 55 C

Altitude

Operating:  ambient air temp, to 10,000 Ft.

Static discharge:  7.5 KV maximum

Ambient air noise level

47-50 dB (depending upon position)


Additional Jumper Setting Information;
Jumpers Settings

   The Model 403E contains jumpers for password clearing and clearing out CMOS to return system to a known configuration state.  Currently, the board uses silk-screened labels to identify the specific jumpers.

JUMPERS	OPTION

Password 	On or off used to clear out CMOS password

Default	Used to return system to a known configuration state.

Useful when EISA configuration is unclear.

Password	OFF	CLEAR

E1-E2*	E2-E3

Default	OFF	ON

E6-E7*	E7-E8

* Factory Default Setting


Default BIOS and ECU Settings

   A "*" denotes the BIOS default settings and a "#" denotes the ECU's default settings.

1) System Base Memory Option

#*	640 KB Base Memory

512 KB Base Memory

2) RAM Shadowing Options

#*	Shadow System BIOS and Video BIOS

Shadow System BIOS only

Shadow Video BIOS only

Disable shadowing of System and Video BIOS

3) User Definable Hard Disk Options

#*	Types 48 & 49

Types 2 and 3 SHADOWING OF SYSTEM BIOS MUST BE ENABLED

4) Cache Control Option

#*	Cache enabled

Cache disabled

5) On-Board Floppy Controller Options

#*	Enable On-Board Floppy Controller

Disable On-Board Floppy Controller

6) Floppy Drive A Options

#*	3.5" 1.44 MB

5.25" 360 KB

5.25" 1.2 MB

3.5" 760 KB

Disabled

7) Floppy Drive B Options

3.5" 1.44 MB

5.25" 360 KB

5.25" 1.2 MB

3.5" 760 KB

#*	Disabled

8) Hard Drive 1 Options

#	Hard Disk Auto-configuration

*	Hard Drive 1 disabled

Drive Types 1 - 49

9) Hard Drive 2 Options

#*	Hard Drive 2 disabled

Hard Disk Auto-configuration

Drive Types 1 - 49

10) Parallel Port 1

#*	Parallel Port 1 Enabled

Disabled

11) Parallel Port 2

Parallel Port 2 Enabled

#*	Disabled

12) Serial Port 1

#*	Serial Port 1 Enabled

Disabled

13) Serial Port 2

#*	Serial Port 2 Enabled

Disabled

14) Redirection Options for COM1

#*	Redirection Disabled

Redirection Enabled at 1200/2400/9600 baud

15) Redirection Options for COM2

#*	Redirection Disabled

Redirection Enabled at 1200/2400/9600 baud

16) Monitor Type Option

#*	EGA/VGA Monitor with Primary Monitor Color

EGA/VGA Monitor with Primary Monitor Monochrome

CGA Monitor - 80 columns

CGA Monitor - 40 columns

Monochrome Monitor

Not Installed

17) Keyboard Control Option

#*	Keyboard Disabled

Enabled

18) Mouse Control Option

#*	Mouse Disabled

Enabled

19) Speaker Control Option

#*	Speaker Enabled

Disabled

20) CPU Speed Option

#* 	Turbo

Deturbo

21) Enter Setup Control Option

#*	Enter Setup Only at Pre-Boot

Enter Setup Always


Independent ECU Utilities

COMMAND	PARAMETERS	Description
1) Keypass	|	System Boot password feature.  Prevents unwanted access.
2) Keylock	|	Locks the system keyboard.
3) Cache	| ?|On|Off	Enables or disables the cache
4) Speaker	| ?|On|Off	Enables or disables the speaker
5) Fast	| ?	Sets system to run at 33 MHz
6) Slow	| ?	Sets system to run at 8.33 MHz


403E Support Information
Support Information

This product is backed by Intel's industry leading support groups including Network Services Division (NSD) and IntelTechDirect.  NSD supports many of your network integration and service needs including providing world wide network integration and system repair services.  IntelTechDirect provides the following 3 major services:

For more information about IntelTechDirect please contact your local Intel Sales Representative.

iPUB (Intel Product Update Bulletin) Monthly Bulletin

A monthly publication containing product specific information.

iPALS (Intel Phone Action Line Support)

A direct telephone support line backed by highly qualified and well trained technical personnel.

In North America & ROW: 503-696-7257

In Europe: 44-793-430-420

iPAN (Intel Product Assistance Network)

An electronic Bulletin board with current product information, demo software and more...

In North America & ROW: 503-693-1493

In Europe: 44-793-696-981

Multiple modem lines 1200, 2400, 9600 bps; no parity; 8 data bits; 1 stop bit; MNP (correction & compression).

Supports the following protocols:

ASCII paced with DC2/DC4

Raw ASCII (no control codes)

XMODEM

XMODEM/YMODEM-g

YMODEM/YMODEM-g batch

SEAlink

Kermit

Super Kermit (Sliding Windows)


Model 303 Product Order Codes
Product Order Codes

System

1. S403E334B0	System, 4 MB, no external cache, ECU included

Baseboard

1. B403E334	10 slot motherboard, 4 MB, no external cache

2. DB403E334	8 slot motherboard, 4 MB, no external cache

EISA Configuration Utility

EISACONFIG	EISA configuration utility (necessary to configure the system)


Model 403e CMOS - Setup Usage
CMOS - Setup Usage

Phoenix Technologies Ltd.	Version

System Configuration Setup	x.xx xx

Time:	08:56:05
Date:	Fri Jul 10, 1992
Diskette A:	3.5 Inch, 1.4 MB
Diskette B:	5.25 Inch, 1.2 MB
Display:	VGA/EGA
Keyboard:	Installed
Speaker:	Enabled
CPU Speed:	Fast
Enter SETUP:	Pre-boot
Base Memory above 512K:	Enabled
On-board floppy controller:	Enabled
Serial Port 1:	Enabled
Serila Port 2:	Disabled
Console Redirection to COM1:	2400 Baud;   COM2:   Disabled

Up/Down Arrow to select.  Left/Right Arrow to change.

F1 for help.  F10 to exit and save changes.

Esc to reboot for changes to take effect.


403E Memory Qualifications Menu
Memory Qualifications Menu

403E Memory Sub-System

See Also:

System Memory Features

System Board Memory Appendix


403E Known Problem Issues Menu
403E Known Issues Menu

For a list of known issues and a detailed problem/solution connect to iPAN.

iPAN's modem number is (503)-693-1493


403e Shipping Contents
Shipping Contents

The Model 403E system ships with the following:

3.5" 1.44 MB floppy

396 watt power supply

Model 403E  Product guide

ECU diskette (version 2.1)

Six foot power cable

Dear customer letter


EISA Configuration Utility (ECU)
EISA Configuration Utility

Revision Numbers on envelope and diskettes for the 403e ECU

Envelope:	468866-001

Version	3.5" Diskette	5.25" Diskette

1.1	467218-001	467217-001

2.0	468758-001	468757-001

2.1	469476-001	469475-001

Version 2.1 of the ECU is a Limited Application DOS

See Also:

Default BIOS and ECU Settings

Independent ECU Utilities

System Configuration