Copyright: ® Intel Corp


Help Contents
Contents

OmniRACK

July Updates

Intel Product Update Bulletin (iPAN)

Board and BIOS Product History

System Product History

Orderable Spare Parts List

General Product Information

Certifications

Known Errata

Technical Product Summary

Introduction to the OmniRACK

OmniRACK System Features

Performance Overview

Board Features

Reliability Measurements (MTBF)

Specifications

Product Codes

IntelTechDirect ™

Support Services


July Updates

This release of the OmniRACK help file was released July 15, 1994.

•	Changed ECO Notification for Intel Inside labels, now will  be implemented in July 1994.

•	Added change notification concerning the Xpress versions with new CPU Module support bracket.

•	Added change notification concerning the power supply cables length nominal increase of 30mm.


Board and BIOS Product History

OmniRACK products will always ship with the current revision of motherboard and BIOS available.  Please see the appropriate product history for the motherboard and BIOS as per the table below:

Product	Order Code	Description	See this Help File:
Premier/PCI OmniRACK	ORP605P8	Premier PCI with 60MHz Pentium TM processor, "Baby AT" form factor motherboard	Premier PCI Baby AT help file
OmniRACK Classic E	OR486S257E4	7 ISA slot 486SX25 "Baby AT" form factor motherboard	Classic E help
	OR486D337E4	7 ISA slot 486DX33 "Baby AT" form factor motherboard	Classic E help
	OR486D2667E4	7 ISA slot 486DX2-66 "Baby AT" form factor motherboard	Classic E help
OmniRACK Xpress/RX	ORBASE6DT4	6 EISA slot Xpress architecture base platform	XPress help for the desktop board
	ORBASE8LX8	8 EISA slot Xpress architecture base platform	XPress help for the desktop board


System Product History

Power Supply Cable Length increase, est Sept. 94

Module Support Rail, est July 94

Intel Inside Logo Addition, July 1994

Drive Mounting Cage Change, Feb 1994

Motherboard Mounting Standoff Change, Jan 1994

Update Safety Label, Dec 1993

Minor Changes, Oct 1993

Release OmniRACK, Sept 1993


Power Supply Cable Length increase, est Sept. 94

The 230W power supply used by OmniRACK is used in other projects also.  Another project needs the power cable length increased by 30mm, and to keep comonality all the 230W power supplies will be changed.  This change causes no form, fit, or functional changes to OmniRack.


Module Support Rail, est July 94

For Xpress versons only:  A very minor change was made to the black plastic support rail which supports the CPU module.  The edges were beveled to ease installation and increase board clearance.  The new part number is  515524-004.


Intel Inside Logo Addition, July 1994

Two Intel Inside Logos will be added to the product.  One approximately 1-inch label will be applied to the bezel in the upper left hand corner.  On the shipping container, one approximately 3½-inch label will be placed near one of the two product code labels.


Drive Mounting Cage Change, Feb 1994

Changes made to the drive mounting cage and the bracket which holds the XPress CPU modules, to prevent contact during vibration between the module's CPU Heatsinks and the drive cage.   The new cage is only required for the XPress modules, but all OmniRACK will incorporate this new drive cage for commonality across the product line.

ECO Number 2157162


Motherboard Mounting Standoff Change, Jan 1994

•	In order to accomodate the Premium/PCI Baby-AT motherboard, the width of the mounting standoffs were narrowed to ¼ inch in diameter.  All chassis were changed for commonality.

•	Added Unpacking Label

•	Updated Product Guide Suppliment

ECO Number 2157165


Update Safety Label, Dec 1993

Updated the safety label as required by UL.

ECO Number 2157161


Minor Changes, Oct 1993

•	Removed one key plug from floppy cable

•	Added 2 drive bezel labels to meet CSA Requirements

•	Minor changes to safety label to provide more room for typing numbers

•	Changed length of screws for mounting power supply

•	Added manual suppliments

ECO Number 2157159


Release OmniRACK, Sept 1993

Initial release of this product.

ECO Number 2157156, 2157157


Orderable Spare Parts List

	Standard for all units
	473802-001	Assembly, Fan 90 CFM
	473753-002	Air Filter, 6.38 x 7
*	473756-001	Floppy Cable
*	473758-001	IDE Cable
*	202123-001	230 Watt Power Supply
*	473767-001	Power Switch Wire Harness
	473770-001	Front Panel w/handles and door
	473774-001	Handle
	473748-003	Drive Mounting Cage
	Classic E
	202063-002	4.5V, Alkaline Battery
*	473814-001	Parallel Port Cable
*	473816-001	Serial Port Cable
	473760-001	Operator Control Panel Harness
*	613014-003	Baby AT SX25 Baseboard
*	613015-003	Baby AT DX33 Baseboard
*	614594-003	Baby AT DX2-66 Baseboard
	Premier/PCI
	613926-008	Premier/PCI Baby AT Baseboard
	474176-001	Operator Control Panel Harness
	Xpress/RX
	515524-004	Module Support Bracket
	474231-001	Drive Mounting Support Bracket (Note:  This bracket, the Drive Mounting Cage listed above, and a screw 108564-022 are all required to prevent XPress CPU modules from contacting the drive cage during vibration. Product built after Feb 1994 will have these updated parts already installed.)
	6 slot
	473789-001	Operator Control Panel Harness
*	611850-002	Xpress Six slot Baseboard
	8 slot
	473792-001	Operator Control Panel Harness
*	540481-001	Xpress Eight Slot Baseboard
*	Indicates a Zap product (ZAP is available in domestic US only)


Certifications

Safety
U.S.	UL 1950, 1st edition Listed
Canada	CSA C 22.2 No. 950 Certified
Europe	TUV to EN 60950 Certified
EMI/RFI
U.S.	FCC CFR 47 Part 15, Subpart B, Class A Verified
Canada	Canadian DOC Class A Compliant
Europe	VDE Class B 0871/6.78, in accordance with VFG 243/1991
	CISPR22 Class B
Japan	VCCI, Class 2 ITE


Known Errata

Some Doors Interfere with 5¼" Drives

Choice of Aluminized Steel as Chassis Material.


Some Doors Interfere with 5¼" Drives

Problem:  A Quality issue was found in March 94 where some hinges were installed backwards on some OmniRACKs.  The door operates properly, but because the hinge is installed improperly a floppy diskette or a CD ROM may not be able to be inserted into its drive easily.  Intel caught many in our factory and has instituted corrective action, but this information is distributed in case some units may have reached the field.

Related Topics:

OmniRACK DRIVE BAY HINGE REWORK


OmniRACK DRIVE BAY HINGE REWORK

INITIAL INSPECTION

Open drive bay door as far as possible.  The door should completely clear the drive bay opening leaving the hinges partially visible and the entire opening accessible (see below).

If the door opens correctly no rework is necessary.

If the door opens incorrectly perform the rework on the following pages:

REWORK

Remove Front Panel Cover

Remove 8 socket head cap screws as shown:

Remove Drive Bay Door Hinges

Remove 8 philips head screws and remove hinges.

Reinstall Hinges

Reinstall hinges as shown:  (Large part of hinge goes on Drive Bay Door).

Reinstall Front Panel Cover.

Reinstall front panel cover reusing the 8 socket head cap screws.

Verify that hinges appear as shown below:


Choice of Aluminized Steel as Chassis Material.

Problem:  In some cases, there is an appearance of rust on chassis at holes and edges.

History

Most standard desktop PC's today are made of ElectroGalvanized steel (aka "paint lock"). 'EG' is steel plated as a sheet at the mill with a very thin layer of zinc and clear chromate for corrosion resistance.  When this metal is punched or sheared at the sheet metal factory, the resulting exposed edges are then vulnerable to some corrosion.  In theory, the metal doesn't rust because the tooling smears the coating across the edges, but experience in other cases has proven there are exceptions.  EG is ugly and dull in appearance, but is the most economical chassis material.

The OmniRACK chassis is made of Aluminized Steel.  Similar to EG, "AS' stock is plated at the factory with a thin layer of Aluminum/copper alloy.  AS has better surface conductance than EG, and therefore fares better under EMI/RFI tests.  Its shiny aluminum outer coating also looks much better than EG, for only a minor increase in price.  Since the AS stock is plated before tooling, the AG has similar corrosion possibilities as does the EG.

The outer chassis of the XpressRACK, on the other hand,  is made of Electroless Nickel.  EN looks very sharp and has excellent conductivity that yields great results at the EMI test range.  Naturally, there is a more significant cost burden to upgrade to EN from AS.

At the top of the EMI/corrosion/appearance peak (but as a cost nightmare) lies stainless steel.

Still offering good corrosion resistance (but at the expense of EMI containment) would be materials like zinc/clear chromate or zinc/yellow chromate.  The pre-production XpressRACKS were dipped in Zn/yellow for even better corrosion resistance.  Zn/yellow chromate has a goldish rainbow across the surface.  Metal shops like to use Zn/yellow because the color is assumed to be non-uniform, so it tends to hide other surface scratches and blemishes resulting from the tooling, resulting in fewer rejected parts.

Chromate is applied because the zinc alone forms zinc oxide, which is dull and non-conductive.  Unfortunately, the chromate itself is also an electrical insulator.  Special shielding was required for pre-production Zn/yellow XpressRACKs.

The rackmounted systems we have sampled from other vendors are typically made of Zn/clear or Zn/yellow and have no EMI/RFI certifications.  The OmniRACK and XpressRACK have FCC A, CISPR B, VDE B, and VCCI 2.  To achieve this compliance, it was necessary to forgo use of Zn/clear or Zn/yellow.  AS was then chosen over EG for the slight EMI advantage and definite appearance advantage for about the same price.

EN would have provided even better conductivity and corrosion resistance, but at our working price point, any EN stock would not have been cosmetic grade.  In addition, EN is very difficult for metal shops to work with.  It was also found to acquire a goldish discoloration when exposed to adverse conditions, and had to be buffed out to restore its new appearance (in the end, probably not a lot better than AS's "rust at the edges").


Introduction to the OmniRACK

Figure 1: OmniRACK Front Panel with access door closed

OmniRACK provides the ultimate in flexibility and value in a rackmountable computer.  Multiple system architecture's in a single platform provides OEMs, Distributors, and Value-Added Resellers with the ability to provide a wide range of performance levels, multiple upgrade paths, and price points to meet their customer's needs.  OmniRACK is not just a rackmount microcomputer; it is a product environment providing easy integration, brand identity, and integration services.

OmniRACK opens the door to solid high performance, expandability, and upgradeability.  It is a logical successor to systems with Intel 386 CPUs.  Extremely flexible, the OmniRACK Rackmount PC can be used as an embedded ISA/EISA bus Microcomputer (without front panel), or in an industry standard RETMA 19 inch equipment rack (with front panel). The OmniRACK requires 4 RETMA units (7 inches) of rack height, and is suitable for installation in racks with depths of at least 20 inches.

The OmniRACK makes the integrator's job easy by providing six to eight bus slots and four peripheral expansion bays. Standard configurations of the OmniRACK come with either a baby AT, Xpress 6 slot or an Xpress 8 slot motherboard. The bus slots all support full-length cards.  The OmniRACK's 230 watt power supply and fans provide ample power and cooling for a full load of peripherals and devices.

The Classic E-Series baby AT motherboard provides 7 16-bit ISA slots.  Slot 1 is a dual bus slot containing a 16-bit ISA connector and a VESA local bus connector. CPU performance can be from a 486SX25 to 486DX266 and for future CPU upgrades a 238-pin socket for upgrading CPU performance with a i486 OverDrive™ Processor or future OverDrive components based on Pentium™ microprocessor technology.

The Xpress 6 slot or 8 slot motherboard provides EISA expansion slots with a modular CPU upgrade path from 486SX25 to Pentium™ microprocessors.

The Premier/PCI OmniRACK redefines the performance envelope for rackmountable computers.  With a Pentium™  microprocessor and the PCI local bus, the Premier/PCI OmniRACK provides the ultimate in performance and value in a rackmountable  platform.  A generous number of ISA and PCI slots also protect your customers' investment by allowing selection of add-in board performance for today while providing sufficient PCI slots for future enhancements.


OmniRACK System Features

Chassis

Security

Front Panel

Air Filter

Battery Back-up

Chassis Color

Peripheral Bays

Shock Mounting Hard Drives

Add In Card Hold Down Bracket

Back Panel

Speaker

System Cooling And Air Flow

Chassis Slide Rails For RETMA Rack Mounting

Equipment Racks to Support OmniRACK

Power Supply


Chassis

The OmniRACK easily provides the expandability required for most light industrial PC applications  four peripheral bays and an ample 230 Watt 115/230VAC switch-selectable power supply with internal cooling fan (28 CFM). Depending on configuration, OmniRACK includes up to two additional 50-90 CFM temperature controlled fans. The system has four peripheral bays (two 5.25"X1.6", one 3.5"X1.6" and one 3.5"X1").  A removable drive cage houses the  four peripheral bays. A mechanical key lock on the peripheral access door provides system security.   Located behind the door are the four peripheral bays,  the power ON/OFF switch, reset switch, and depending on motherboard used, a keyboard lock switch.

The OmniRACK chassis is all aluminized steel construction. Individual sheet metal parts are punched and formed on precision NC equipment, then assembled on matched holes with rivets. The steel front panel and door are finished with textured powder paint to provide a very uniform finish of exceptional durability.

The design of the chassis provides the ability to use the system with or without the front panel.  This design philosophy not only allows the system to comply to current International standards in the tested typical system configurations, but also increases the likelihood of compliance after customers have integrated a wide variety of addin boards.


Security

The OmniRACK provides two levels of security.

SYSTEM Door lock

When engaged, the system door lock  prevents access to drives, ON/OFF power switch, reset switch and keyboard enable switch. Each system is provided with a set of two identical keys.  A separate latch allows you the option of locking or simply latching the door.

BIOS Password

A BIOS password feature, supported in Classic E-Series and Xpress motherboards, provides security during the boot process. A password can be entered using the Setup utility and must be re-entered prior to disk boot each time the system is reset. The password can be changed by entering <old password>/<new password>/<new password><enter>. If the password is forgotten, it can be cleared by turning off the system and clearing flash memory.


Front Panel

The OmniRACK front panel consists of DC power on, disk active indicators, air intake grill, and two chassis handles. The front panel peripheral access door has both a key lock and a door latch, so that the door can be latched or locked closed. Located behind the peripheral access door is the power switch, a hardware reset switch, and on Baby AT and 8 slot Xpress models a keyboard lock switch.   The 6 slot Xpress does not support a keyboard lock switch. The Figures below show the front peripheral access door open.

Figure 2: OmniRACK Front Panel for baby AT and Xpress 8 slot motherboards

Figure 3: OmniRACK Front Panel for Xpress 6 slot motherboard (keyboard lock is not supported)


Air Filter

The OmniRACK comes with a removable air filter.  The air filter is  behind the front air intake grill. To remove the air filter, remove the system top cover, then remove two hold down screws.  The filter is made of a .125 inch layer of 30 ppi foam.  An aluminum alloy frame holds the filter material.  The removable filter is UL recognized.  For replacement information, see Orderable Spare Parts List.


Battery Back-up

The OmniRACK Xpress and Premier configurations integrate on-board batteries with their real time clocks.  For Classic E OmniRACK, an off-board battery is supplied.  This battery is an alkaline "Ray-O-Vac" battery with an estimated life of 2 years.  For replacement information, see Orderable Spare Parts under the Classic E section.  If a battery is replaced with other than the exact type originally supplied, be sure to check the jumper settings for the battery voltage (See the Classic E help file for this information).  The battery connects to jumper J17 of the Classic E baseboard.


Chassis Color

The front panel of the system is powder painted dark gray.  Front panel trim is in black (handles, door hinges, and latch knob). The top, bottom, back, and sides of the chassis are aluminized steel.

For front panel touch up lacquer, call Cardinal at 800-995-4431 and ask for touch up lacquer color code T-241-GR29.  The color name is Granite.  For color matching purposes, one master color chip can be supplied by calling the Intel Phone Action Line  Support (iPALS).


Peripheral Bays

A removable drive cage houses the OmniRACK's peripheral bays. The drive cage is removed  from the system by removing the chassis cover, disconnecting the cables to the drives, and removing three hold down screws. This allows the customer to quickly replace or re-configure the system drive configuration.  Four expansion bays are available for peripherals and other add-in devices. These include two 5¼" half-height bays, one 3.5" one-inch bay and one 3.5" half-height bay.  All of the drive bays are accessible from the front panel. The bottom 3.5" half-height bay has a split front access panel so that front access 1" and 1.6" devices can be used.

Figure 4: Removable Peripheral Drive Bay


Shock Mounting Hard Drives

Most drive manufacturers specify maximum mechanical shock and vibration limits for their products, then design and test the products to comply to these specifications.  Hard disk drive manufacturers incorporate carefully engineered shock mounts to comply with their shock and vibration specifications.  Providing effective additional external shock mounts for a disk drive requires careful engineering and testing.  Simply incorporating auxiliary external shock mounts to make a chassis appear "ruggedized", can result in a mismatch between the load bearing and damping characteristics of the mounts and the drive.  A possible consequence is that the drive will resonate on the mounts, greatly amplifying the magnitude of the shock and vibration.  The OmniRACK chassis provides solid mounting for two 3.5" drives, with no provision for additional shock mount.  The OmniRACK chassis also provides solid mounting for two 5.25" drives.  The two 5.25" bays can accommodate 3.5" drives by using adapter brackets (adapter brackets not supplied with OmniRACK, please contract your drive manufacture for adapter brackets).  Adapter brackets, for 3.5" drives, can be designed to provide additional shock mounting. Customers wanting Intel to design and qualify additional shock mounting, should contact OPSD Marketing to discuss a quotation.


Add In Card Hold Down Bracket

An optional add-in board hold down bracket is available for customers requiring additional shock and vibration protection for the ISA and EISA cards.  This hold down bracket prevents the add in cards from rising out of its slot due to severe shock or vibration.  The bracket fastens to the inside of the chassis using four screws.  The hold down bracket will support six to eight ISA or EISA slots.  The hold down bracket will secure a full or half length ISA or EISA card in its slot.


Back Panel

The back panel of the OmniRACK can be configured to support different motherboard input/output port requirements.  The rear panel of all systems contains a 115/230 voltage switch, a power supply input,  and the power supply fan.  The board slot area consists of access panels for the expansion slots (depending on motherboard used one or more locations are unused).  To support the baby AT motherboards the rear input/output panel has mounting for: two DB9 RS-232 serial ports, a bi-directional parallel port, an AT-style keyboard connector.  For 6 slot or 8 slot Xpress motherboards the rear input/output panel has mounting for: two DB9 RS-232 serial ports, a bi-directional parallel port, VGA port, PS/2 mouse port and a PS/2-style keyboard connector,

Figure 5: OmniRACK Back Panel for Xpress 6 or 8 slot motherboards

Figure 6: OmniRACK Back Panel for baby AT motherboards


Speaker

The standard system ships with a speaker installed.  The speaker provides beep code information  on system errors occurring during the power on system test (POST).


System Cooling And Air Flow

The system intakes air from the air filter mounted in the front grill and exhausts the air from power supply and openings in the rear of the system.  The total area of rear air exhaust is sized to the total intake area to insure positive air pressure in the system chassis.  The positive air pressure forces contaminants out of the drives.

Depending on the model, OmniRACK contains two or three fans to keep the system cool. Baby AT configurations have two fans. 6 and 8 slot Xpress systems have three fans.  An exhaust fan  within the power supply provides 28 CFM of air movement.  The remaining fans are temperature controlled and provide 50 to 90 CFM depending on the temperature.  The second and third fans are behind the card guide at the front of the system and provide intake air.

Figure 7: OmniRACK Chassis Air Flow


Chassis Slide Rails For RETMA Rack Mounting

The OmniRACK chassis has mounting holes that accept General Devices' Chassis Trak Model C300 slide rails.

Chassis Trak Division

General Devices Co. Inc.

P.O. Box 39100

1410 S. Post Road

Indianapolis, Indiana 46239

317-897-7000

Slide Model No. C300S1

Description: Solid bearing, 3 piece, nonpivoting, cabinet mount

Slide load capacity, 85 pounds.


Equipment Racks to Support OmniRACK

OmniRACK will fit into any industry standard RETMA 19 inch equipment rack. The OmniRACK requires 4 RETMA units (7 inches) of rack height, and is suitable for installation in racks with depths of at least 20 inches.  Intel does not sell the racks.  Suppliers are widely available, two are:

General Devices (Chassis TRAK); phone  (317) 897-7000

UNIZONE in Tempe AZ;  phone  (602) 756-2806.


Technical Product Summary - OmniRACK System Features - Power Supply
Power Supply

The OmniRACK integrates a 230 watt 115/230 VAC switchable power supply for all onboard resources, add-in cards, and peripherals. The power supply supports operating settings at 100-120 VAC (5 Amps AC) or 200-240 VAC (3 Amps AC).    See the Specifications section for power ratings.


Performance Overview

The following performance data will help you determine which system architecture best meets your needs.  Graphics intensive applications tend to favor the Classic-E if a high performance graphics card is used in the VESA slot.  Compute intensive applications favor the Xpress architecture.

          Classic-E	      Xpress

Related Topics:

PC Laboratories Suite, Version 7.01

PC Laboratories Suite,  WINBENCH Version 3.11


PC Laboratories Suite, Version 7.01

Developed by PC Magazine ZD Labs in late 1992, the version 7.0 suite is considered to be one of the most widely used utilities to measure system performance. PC Magazine consulted CPU component vendors to analyze DOS, Windows and OS/2 16-bit applications and determine the frequency of the instructions executed by the i486 CPU. The ZD Labs utilized new software tools to bring the level of source code and compilers up to date when compared to version 6.0. In March 1993, ZD Labs released the revised version 7.01 and WinBench 3.11 test suites. Specific alterations include memory test script computation formulas, DosMark computation formulas and developments in compilier techniques.  Each system tested with 8MB system memory, 1MB video DRAM and the WD 2340 hard drive. Tests were conducted by Intel Corp.


PC Laboratories Suite,  WINBENCH Version 3.11

The Disk WinMark is based on testing techniques adapted from PC Magazine's DOS disk test to reflect operation within the Windows 3.1 environment. Each system contained 2 MB of SmartDrive cache. This test determines how effectively the disk processes data files of varying sizes up to 32 MB.  This will force disk cache misses. The test simulates large database accesses, large graphic files,  reading/writing small files typically used in word processors, and electronic mail. Multi-user, multi-taskings, and networking disk access patterns also are simulated.  Each system tested with 8MB system memory,  2MB video VRAM on an ATi Ultra Pro VL, and the WD 2340 hard drive.  Tests conducted by Intel Corp.


Board Features

ORBASE6DT4 -(6 slot Xpress architecture 4 MB memory standard)

ORBASE8LX8 -(8 slot Xpress architecture with 8 MB memory standard)

•	Intel Xpress CPU module connector

•	Intel Xpress RAM expansion module connector

•	Six or eight full size EISA expansion slots capable of accepting PC/XT, ISA, or EISA addin boards.

•	Four SIMM RAM sites capable of accepting 2, 4, 8, 16, or 32MB SIMM modules, up to 128MB.

•	Two RS232C serial ports with 9 pin DSUB connectors.

•	One parallel port with 25 pin DSUB connector.

•	PS/2style keyboard interface (6 pin miniDIN connector)

•	PS/2style mouse interface(6 pin miniDIN connector)

•	Integrated floppy disk drive controller.

•	Integrated IDE hard disk drive controller.

•	Integrated VGA controller with 512K upgradable to 1MB video RAM.

OR486S257E4 - (7 ISA slot 486SX25 "Baby AT" motherboard base platform 4MB memory std.)

OR486D337E4 -(7 ISA slot 486DX33 "Baby AT" motherboard base platform 4MB memory std.)

OR486D2667E4 -(7 ISA slot 486DX2-66 "Baby AT" motherboard base platform 4MB memory std.)

•	7  full size ISA ( 16 bit) expansion slots (includes a dual purpose VL slot)

•	1 VESA local bus slot

•	Four SIMM RAM sites each capable of containing one 36-bit SIMM providing a maximum of 64MB

•	Two RS232C serial ports with 9 pin DSUB connectors.

•	One parallel port with 25 pin DSUB connector.

•	AT-style keyboard interface

•	Integrated floppy disk drive controller.

•	Integrated IDE hard disk drive controller.

•	OPTI chip set

•	Optional second level direct-mapped, write-back cache using SRAM (64KB, 128KB or 256KB)

•	Phoenix BIOS in flash memory

ORP605P8 -(Premier/PCI OmniRACK with 60MHz Pentium™ processor, 256KB cache, 8MB RAM)

•	2 dedicated PCI expansion slots

•	4 dedicated 16-bit ISA expansion slots

•	1 shared slot for ISA or PCI

•	4 72-pin sockets for tin-lead DRAM SIMMS.  8MB standard with 2 open sockets.  128MB maximum.

•	Two RS232C serial ports with 9 pin DSUB connectors.

•	One parallel port with 25 pin DSUB connector.

•	AT-style keyboard interface

•	Integrated floppy disk drive controller.

•	Integrated IDE hard disk drive controller, Fast DMA compatible.

•	128KB direct mapped, write back cache installed

•	AMI BIOS in flash memory


Reliability Measurements (MTBF)

	CALCULATED		DEMONSTRATED
Items		Converted   to 50°C		Converted to  50°C
Classic E Baseboard	74,987 @ 55°C	--	Not Available	—
Xpress 6 Slot B/B	124,000 @40°C	77,872	83,721 @ 40°C	52,576
Xpress 8 Slot B/B w/o SCSI	88,000 @ 40°C	55,264	28,414 @ 40°C	24,831
230 Watt Power Supply	>100,000 @ 25°C	29,600	28,414 @ 40°C	17,831
NMB Fan	30,000 @ 20°C ≠ 15°C	N/A	N/A
Pentium 60 mHZ	123,000 @ 55°C	153,750	19,582 @ 40°C	12,297
X486 DX 50	135,000 @ 55°C	168,750	97,055 @ 40°C	60,950
X486 DX 266	218,000 @ 55°C	272,500	17,831 @ 40°C	11,197
X486 DX 33	247,000 @ 55°C	308,750	49,536 @ 40°C	31,108
X486 DX 25	247,000 @ 55°C	308,750	44,064 @ 40°C	27,672
BXMEM0  (W/8 mb total)	98,000 @ 55°C	122,500	17,831 @ 40°C	11,197
These reliability statements provide information only.  Intel makes no warranty regarding the accuracy in application of theses statistics.


Specifications

Physical Dimensions

Environmental

Power Supply

Regulatory Agency Compliance


Physical Dimensions

Length    17.8 in (not including front panel)

Width     17.0 in.

Height      7.0 in.


Environmental

Temperature (operating)	0 to +50 °C
Temperature (storage)	25C to +70 C.
Humidity (operating)	20% to 85% noncondensing
Humidity (storage)	0% to 95% noncondensing
Altitude (operating)	300 to 10,000 feet MSL
Altitude (nonoperating)	40,000 feet MSL max
Vibration (operating)	Random vibration (note - G2/Hz is the unit of measure of power or acceleration spectral density)
5 - 350 Hz	.0001 G2/Hz
350 - 500 Hz	-6 DB/octave rolloff from .0001 G2/Hz
	(therefore at 500 HZ, .00005 G2/Hz)
Vibration (non-operating)	Random vibration (note - G2/Hz is the unit of measure of  power or acceleration spectral density)
	.001 G2/Hz @  5 Hz, sloping to
	.01  G2/Hz @ 20 Hz, and
	.01  G2/Hz @ 20 Hz to 1KHz.
Shock (operating)	5 G, 1/2 sine wave, duration 11 ms
Shock (nonoperating)	40 G, 1/2 sine wave, duration 11 ms


Technical Product Summary - Specifications - Power Supply
Power Supply

The OmniRACK integrates a 230 watt 110/230 VAC switchable power supply for all onboard resources, add-in cards, and peripherals. The power supply supports operating settings at 100-120 VAC (5 Amps AC) or 200-240 VAC (4 Amps AC).


Regulatory Agency Compliance

See Certifications


Product Codes

The OmniRACK is available in six base platform configurations:

OmniRACK XpressRX

Xpress RX systems are available with most currently released Xpress CPU modules.  The Pentium modules BXCPUPENT66 and BXCPU2XPENT66 will not fit into the OmniRACK due to height restrictions between the board and the top of the heatsink.

ORBASE6DT4	6 EISA slot Xpress architecture base platform, 4MB memory standard
ORBASE8LX8	8 EISA slot Xpress architecture base platform, 8MB memory standard
OmniRACK Classic-E

OR486S257E4	7 ISA slot 486SX25 "Baby AT" motherboard base platform, 4MB memory
OR486D337E4	7 ISA slot 486DX33 "Baby AT" motherboard base platform, 4MB memory
OR486D2667E4	7 ISA slot 486DX266 "Baby AT" motherboard base platform, 4MB memory
Premier/PCI OmniRACK

ORP605P8	Premier/PCI OmniRACK with 60MHz PentiumTM processor, 256KB cache, 8MB RAM
OmniRACK Chassis Options

CARDHOLDBRKT	Add-in card hold down bracket
ORSLIDERAILS	Mounting Slide Rails These rails are 20" long when retracted, 41" max when extended.  A 6" extention is included in the kit if required.


Support Services

Complete Product Support Services

Now Available to ALL Intel Platform Customers

IntelTechDirect™ is a support package that helps Original Equipment Manufacturers and Value Added Resellers get to market fast with Intel386™, i486™ and Pentium™ Processor platform products − and ensures complete satisfaction from our customers and your customers.

IntelTechDirect™ is available 24 hours a day, seven days a week via an electronic bulletin board system and a FaxBack service. Toll-free telephone assistance is provided during business hours.

INTEL PHONE ACTION LINE  SUPPORT (iPALS)	1-800-628-8686

U.S.A. & Canada

Prompts 4, 1

• Toll-free access to Intel support engineers for problem resolution

• Responses within 24 hours Monday-Friday

• Expert assistance geared to the special needs of OEMs and VARs

INTEL PRODUCT UPDATE BULLETINS (iPUB Helpfiles)

• Product updates available 24 hours a day from iPAN

• Official notification of engineering changes and technical data

• Easy information retrieval using Windows Help file format

• Intel platform system, board and BIOS histories

• Hardware and software compatibility notes

• Documentation updates, spare parts and order information

INTEL PRODUCT ASSISTANCE NETWORK (iPAN)	1-916-356-3600

• Access to on-line product database and Product Update Bulletins

• Flash BIOS upgrade files

• Available worldwide through direct-dial

• Modem speeds up to 14.4K baud with standard software

FAXBACK*	1-800-628-2283

• Product descriptions and technical data sent to any fax machine from a touchtone phone

• Information on End-Of-Life products

• Available worldwide through direct dial (916-356-3105)