Intergraph InterServe 800 Reference

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InterServe 800

System Reference

April 1998 DHA027000

Copyright



1998 Intergraph Computer Systems. All rights reserved. This document contains information protected by copyright, trade secret, and trademark law. This document may not, in whole or in part, be reproduced in any form or by any means, or be used to make any derivative work, without written consent from Intergraph Computer Systems.

Use, duplication, or disclosure by the United States Government is subject to restrictions as set forth in subdivision (c)(1)(ii) of the rights in technical data and computer software clause at DFARS 252.227-7013. Unpublished rights are reserved under the copyright laws of the United States.

Intergraph Computer Systems, Huntsville AL 35894-0001

Notice

Information in this document is subject to change without notice and should not be considered a commitment by Intergraph Computer Systems. Intergraph Computer Systems shall not be liable for technical or editorial errors in, or omissions from, this document. Intergraph Computer Systems shall not be liable for incidental or consequential damages resulting from the furnishing or use of this document.

All warranties given by Intergraph Computer Systems about equipment or software are set forth in your purchase contract. Nothing stated in, or implied by, this document or its contents shall be considered or deemed a modification or amendment of such warrantites.

Trademarks

Intergraph Computer Systems and the Intergraph Computer Systems logo are registered trademarks of Intergraph Computer Systems. InterServe is a trademark of Intergraph Computer Systems.

Microsoft, Windows, and MS-DOS are registered trademarks of Microsoft Corporation. Windows NT is a trademark of Microsoft Corporation.

Other brands and product names are trademarks of their respective owners.

FCC/DOC Compliance

This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy. If the equipment is not installed and used in accordance with the instruction manual, it may cause harmful interference to radio communications.

Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense.

This Class A digital apparatus meets all requirements of the Canadian Interference-Causing Equipment Regulations. Cet appareil

numérique de la classe A respecte toutes les exigencies du Règlement sur le materiél brouilleur du Canada.

Warnings

Changes or modifications made to the system that are not approved by the party responsible for compliance could void the user's authority to operate the equipment.

The service and upgrade instructions should be performed by qualified personnel only. Qualified personnel do not have to be Intergraph service personnel. Those who are familiar with servicing computers can follow instructions in a manual to service equipment, and do so without harm to themselves or damage to the equipment.

To reduce the risk of electrical shock, do not attempt to open the equipment unless instructed. Do not use a tool for purposes other than instructed.

There is a danger of explosion if the battery is incorrectly replaced. Replace the battery only with the same or equivalent type as recommended by the manufacturer. Dispose of used batteries according to the manufacturer's instructions.

There are no user serviceable parts within the power supply. In the event of failure, the power supply must be replaced by qualified service personnel. Use Intergraph power supplies only.

Notes

Read all safety and operating instructions before using the equipment. Keep these instructions for future reference. Follow all warnings on the equipment or in the operating instructions.

This device is designed and manufactured to comply with approved safety standards for information processing and business equipment.

Preface.........................................................................................................................ix

About This Document.................................................................................................. ix

Document Conventions................................................................................................ ix

Customer Support..........................................................................................................x

1 Accessing the Components.......................................................................................1

Avoiding Electrostatic Discharge...................................................................................2

Opening the Base Unit...................................................................................................2

Closing the Base Unit ....................................................................................................5

2 Replacing System Components................................................................................7

Preparing to Replace Components..................................................................................8

Floppy Disk Drive or Combo Drive................................................................................8

RAID Disk Drives........................................................................................................10

RAID Disk Drive Section (MESAN52)........................................................................12

AC Section (MESAN590)............................................................................................14

DIMMs........................................................................................................................15

System Board (MSMT497A)........................................................................................16

Power Distribution Board (MSMT498 or MSMT499).................................................. 18

LCD Board (MSMT344)..............................................................................................20

Power Supplies............................................................................................................22

Cooling Fans(CFAN123).............................................................................................25

Lithium (CMOS/Clock) Battery...................................................................................26

Hardware and Software Support Services.........................................................x

World Wide Web.............................................................................................x

Intergraph Bulletin Board Service ....................................................................x

FAXLink........................................................................................................ xi

Telephone ...................................................................................................... xi

More Support Options................................................................................... xii

300 Watt Power Supply (MPWS175)..............................................................22

550 Watt Power Supplies (MPWS139)...........................................................24

3 Upgrading the System............................................................................................27

Preparing to Upgrade the System ................................................................................. 28

Adding Memory...........................................................................................................28

Adding a Processor......................................................................................................30

Adding Expansion Cards .............................................................................................31

Slot Locations................................................................................................32

Upgrading Graphics Cards .............................................................................32

Installing Expansion Cards ............................................................................33

Assigning System Resources.......................................................................... 33

Adding Peripherals ......................................................................................................34

Peripheral Device Locations...........................................................................35

Installing Devices in the Drive Bays...............................................................36

Adding External SCSI Drives ......................................................................................38

SCSI Cable Length Guidelines.......................................................................39

SCSI Cable Quality Guidelines.......................................................................39

SCSI ID Guidelines........................................................................................40

SCSI Termination Guidelines for External Devices ........................................40

Connecting the External SCSI Drive ..............................................................40

Changing SCSI Host Adapter or Device Settings............................................41

Disabling SCSI Sync Negotiation...................................................................41

4 System Hardware...................................................................................................43

Hardware Overview.....................................................................................................45

Functional Diagram .....................................................................................................46

Systems with a 300 Watt Power Supply (MPWS175)......................................46

Systems with 550 Watt Power Supplies (MPWS139)......................................47

LCD Board (MSMT344)..............................................................................................48

Board Layout..................................................................................................49

Cable Connectors...........................................................................................50

Cable Routing and Pinouts .............................................................................50

Power Distribution Board (MSMT498 or MSMT499).................................................. 51

Board Layout..................................................................................................51

Cable Routing and Pinouts .............................................................................52

AC Section (MESAN590)............................................................................................55

RAID Disk Drive Section (MESAN52)........................................................................56

Assembly Layout............................................................................................56

Cable Routing and Pinouts .............................................................................57

Channel Module.............................................................................................58

SAF-TE Card................................................................................................. 58

Jumper Settings..............................................................................................58

Power Supplies............................................................................................................59

300 Watt Power Supply (MPWS175)..............................................................59

550 Watt Power Supplies (MPWS139)...........................................................60

Operating Characteristics ...............................................................................61

Connector Pinout ...........................................................................................62

Cooling Fans and Temperature Sensors .......................................................................63

5 System Board ..........................................................................................................65

Slots and Sockets.........................................................................................................66

Cable Routing and Pinouts...........................................................................................67

Jumper Connectors ......................................................................................................71

External Ports ..............................................................................................................73

Configuration Data ......................................................................................................77

DMA Channels .............................................................................................. 77

Input/Output Addresses..................................................................................77

Memory Address Map....................................................................................78

PCI to ISA Bus Interrupt Mapping .................................................................78

Interrupt Requests (IRQs)...............................................................................79

6 Peripherals..............................................................................................................81

Peripheral Cables.........................................................................................................82

Internal Wide Ultra SCSI Cable (MCBL348A)...............................................82

Internal Narrow Ultra SCSI Cable (MCBL338A) ...........................................83

EIDE Cable (MCBL121A).............................................................................83

Floppy Cable (MCBL106A)...........................................................................84

Peripheral Drives.........................................................................................................84

EIDE CD-ROM Drive (CDSK177).................................................................84

SCSI CD Recorder (CDSK133)......................................................................85

Iomega Jaz 1 GB SCSI Internal Drive (CDSK168).........................................86

40 GB 8 MM Tape Drive (CMTP169)............................................................87

Floppy Disk Drive (CDSK146).......................................................................88

Disk Drives.................................................................................................... 88

7 System Specifications.............................................................................................91

System Model Number.................................................................................................92

Specifications...............................................................................................................93

System Configuration Summary...................................................................................94

System Board...............................................................................................................95

Sound Controller .........................................................................................................95

Hardware Monitoring and Power Management ............................................................96

Intrusion Alert Switch....................................................................................97

Temperature Sensors...................................................................................... 97

Fan Speed Monitoring....................................................................................97

Optional Hardware.......................................................................................................97

vii

A Firmware and BIOS Procedures ..........................................................................99

Installing RAID Disk Drive Section (MESAN52) Firmware ........................................99

Installing RAID Controller BIOS...............................................................................100

Index.........................................................................................................................101

viii

Preface

InterServe 800 System Reference describes how to service and upgrade an InterServe 800 system.

About This Document

InterServe 800 System Reference is organized as follows:

Chapter 1, “Accessing the Components,” describes how to open and close the case and how to access internal components.

Chapter 2, “Servicing the System,” describes how to maintain the components of the system.

Chapter 3, “Upgrading the System,” describes how to add components to expand the system.

Chapter 4, “System Hardware,” provides a system hardware overview and technical information on the components of the system.

Chapter 5, “System Board,” provides technical information specific to the system board.

Chapter 6, “Peripherals,” provides connector locations for peripheral cables and drives.

Chapter 7, “System Specification,” provides system configuration summary and specifications.

Appendix A, “Firmware and BIOS Procedures,” describes how to install the disk section firmware and RAID Controller BIOS.

Document Conventions

Bold

Italic Variable values that you supply, or cross-references.

Monospace

SMALL CAPS Key names on the keyboard, such as D, ALT or F3. Names of files and

CTRL+D Press a key while simultaneously pressing another key; for example, press

Commands, words, or characters that you key in literally.

Output displayed on the screen.

directories. You can type filenames and directory names in the dialog boxes or the command line in lowercase unless directed otherwise.

CTRL and D simultaneously.

Customer Support

Intergraph Computer Systems offers an assortment of customer support options.

Hardware and Software Support Services

Intergraph Computer Systems provides a variety of hardware services for Intergraph and third-party equipment. Services include warranty upgrades, repair depot service, on-site hardware maintenance, system administration, and network consulting. Hardware purchased from Intergraph Computer Systems includes a factory warranty ranging from 30 days to three years. A detailed warranty description is available on the World Wide Web; see the Support pages at http://www.intergraph.com/ics.

Intergraph Computer Systems provides complimentary software support for 30 or 90 days following shipment of a hardware or software product. This includes World Wide Web access, Intergraph Bulletin Board Service access, FAXLink service, and telephone (Help Desk) support. At the end of the complimentary support period, you can purchase other levels of software support.

World Wide Web

You can visit Intergraph Computer Systems on the World Wide Web at http://www.intergraph.com/ics. On these pages, you can get news and product information, technical support information, software updates and fixes, and more.

Intergraph Bulletin Board Service

On the Intergraph Bulletin Board Service (IBBS), you can get technical support information, software updates and fixes, and more.

To connect to the IBBS:

1. Set your system’s communications protocol for eight (8) data bits, no parity, one (1) stop

bit, and any baud rate up to 14,400.

2. Using a modem, call 1-256-730-8786. Outside the United States, call one of the mirror

sites listed on World Wide Web; see the Software Support pages at http://www.intergraph.com.

3. At the login prompt, key in your user ID. If you have not connected before, key in new

to create a user ID.

4. Follow the menus to find what you need. The IBBS provides clear choices and online

help.

If you have trouble connecting to or using the IBBS, call the Customer Response Center at 1-800-633-7248 (product entry IBBS) or leave a message for the IBBS System Operator at 1-256-730-1413.

FAXLink

To use the FAXLink:

Telephone

To get customer support by telephone:

Call 1-800-240-4300 for information on how to get technical support information using the FAXLink.

Call 1-256-730-9000 to get documents (up to five per call).

In the United States, call 1-800-633-7248 between the hours of 7:00 a.m. and 7:00 p.m. Central Time, Monday through Friday (except holidays).

Outside the United States, contact your local Intergraph Computer Systems subsidiary or distributor.

Have the following information available when you call:

Your service number, which identifies your site to Intergraph Computer Systems. You use your service number for warranty or maintenance calls.

Your Customer Personal Identification Number (CPIN). You get a CPIN the first time you call the Customer Response Center; it is associated with your service number for future call logging.

The product’s name or model number.

The product’s serial number. Software product serial numbers are included in the product packaging. Hardware product serial numbers are on a sticker affixed to the hardware product.

Your name and telephone number.

A brief description of the question or problem.

xii

More Support Options

To get information on more customer support options:

Visit the Support pages on the World Wide Web at http://www.intergraph.com/ics.

For hardware support questions in the United States, call 1-800-763-0242.

For software support questions in the United States, call 1-800-345-4856.

Outside the United States, contact your local Intergraph Computer Systems subsidiary or distributor.

1 Accessing the Components

This chapter describes how to access the internal components of the system so you can service and upgrade an InterServe 800 system. It also describes methods for avoiding electrostatic discharge and closing the base unit.

WARNING Follow all warnings and cautions in the servicing instructions. If you fail to follow

documented, approved procedures, personal injury and damage to equipment can result.

CAUTION Use an antistatic wrist strap for all servicing procedures to avoid the possibility of

electrostatic discharge.

NOTE “Right side” and “left side” are as seen from the front of the unit.

Avoiding Electrostatic Discharge......................................................................................... 2

Opening the Base Unit......................................................................................................... 2

Closing the Base Unit .......................................................................................................... 5

Avoiding Electrostatic Discharge

Sensitive components inside the base unit can be damaged by static electricity. To protect

against this possibility, take the following precautions when working with the system’s internal components.

Touch the bare metal of the base unit to ensure the base unit and your body are at the same electric potential.

Handle all printed circuit boards as little as possible and by the edges only. Leave new parts in their protective packaging until you install them.

Use a disposable or reusable antistatic wrist strap when servicing or upgrading the system. Once a disposable wrist strap is used, it cannot be used again.

A reusable antistatic wrist strap can be attached to any bare metal part of the base unit. The metal conductor in the elastic sleeve of reusable antistatic straps must contact bare skin.

Opening the Base Unit

CAUTION The system produces high-leakage current. Flip the circuit breaker (if included) to the OFF

position when servicing or upgrading the base unit.

Tools are not required to remove the side panels because twist locks secure the panels to the unit. The following table shows which panel to remove to access the internal components.

Panel

Components

Right side System board, memory, processors, main cooling fans Left side AC section for redundant power supply only Both CD-ROM drive, floppy disk (or combo) drive, power distributions board

assembly; 5.25-inch option devices, LCD board, RAID section

NOTE The redundant power supplies can be removed without taking off either of the side panels.

Side panel removal is necessary for removal and replacement of the fixed mount power supplies.

CAUTION Use caution to avoid injury when removing side panels and other hardware.

WARNING For units installed in a stand-alone rack, ensure the rack’s front and side stabilizers

are extended at all times. If the rack includes adjustable feet on the stabilizers, they must be in full contact with the floor. If the rack includes locking casters, they should be locked.

To open the base unit:

1. Defeat the system’s intruder alert. See System Setup for more information.

2. Log off and shut down the operating system.

3. If your system contains two 550 Watt power supplies, flip the circuit breaker switch to

the OFF position. If your system contains a 300 Watt power supply, turn the keyswitch to OFF and remove

the AC power cord before performing any service operations. Systems configured with the 300 Watt power supply do not have a circuit breaker.

4. If the base unit is in a rack and uses Intergraph sliding shelves, slide the unit out of the

rack.

−

Remove the screw (located under the sliding shelf handle) securing the sliding shelf

to the rack.

−

Disengage the sliding shelf by lifting the release lever.

−

Pull the shelf out until it locks in the extended position. The rback of the base unit

should clear the front of the rack by two inches. You may need to disconnect cables

to fully extend the unit.

−

The base unit can remain on the shelf during the servicing or upgrade procedures.

WARNING For units installed in a standalone rack, ensure the rack’s front and side stabilizers are

extended at all times. If the rack includes adjustable feet on the stabilizers, they must be in full contact with the floor. If the rack includes locking casters, they should be locked.

5. Locate the twist locks on the back of the base unit. Turn the locks counter-clockwise to

disengage the side panels.

6. Pull the side panels back an inch then lift them off the unit. Figures on the following

page show internal views of the system.

Right panel removed

Left panel removed

7. Before performing the service or upgrade procedure, review the section “Avoiding

Electrostatic Discharge.”

Closing the Base Unit

CAUTION After servicing or upgrading the system, always replace the panels that were removed. The

panels ensure the system maintains proper air flow, so internal components do not overheat and fail. The covers also ensure that electromagnetic interference (EMI) emissions remain below the standard requirements. The system will not start unless the panels are properly replaced.

To close the base unit:

1. Disconnect the antistatic wrist strap from the base unit.

2. Replace the side panels and turn the twist locks clockwise to lock the panels into place.

3. If the unit is rack-mounted:

−

Unlock the sliding shelf by pressing the release tab.

−

Push the base unit into the rack until it fully retracts and locks into place.

−

Secure the sliding shelf by installing the screw under the sliding shelf handle.

2 Replacing System Components

This chapter describes how to replace components in an InterServe 800 system.

Preparing to Replace Components........................................................................................ 8

Floppy Disk Drive or Combo Drive......................................................................................8

RAID Disk Drives.............................................................................................................. 10

RAID Disk Drive Section (MESAN52).............................................................................. 12

AC Section (MESAN590).................................................................................................. 14

DIMMs.............................................................................................................................. 15

System Board (MSMT497A).............................................................................................. 16

Power Distribution Board (MSMT498 or MSMT499)........................................................ 18

LCD Board (MSMT344).................................................................................................... 20

Power Supplies.................................................................................................................. 22

300 Watt Power Supply (MPWS175)....................................................................22

550 Watt Power Supplies (MPWS139)................................................................. 24

Cooling Fans(CFAN123)................................................................................................... 25

Lithium (CMOS/Clock) Battery......................................................................................... 26

Preparing to Replace Components

Obey all warning and caution labels while replacing parts. The procedures in this chapter assume you have opened the unit to access the internal components. After you have finished

servicing the system, close the unit as described in Chapter 1, “Accessing the Components.”

Before replacing parts, ensure the problem has been correctly identified so that you do not inadvertently replace a properly working part. The troubleshooting chapter in System Setup has a list of potential problems and errors your system may exhibit.

WARNING Disconnect the system from AC power before servicing internal components! Failure

to remove AC power may result in equipment damage or personal injury.

WARNING Follow all warnings and cautions in servicing instructions. If you fail to follow

documented, approved procedures, personal injury or damage to equipment can result.

CAUTION Use an antistatic wrist strap for all servicing procedures to avoid the possibility of

electrostatic discharge.

CAUTION Do not overtighten screws and other fasteners to avoid damaging threads.

CAUTION The system produces high-leakage current. Flip the circuit breaker (if included) to the OFF

position when servicing or upgrading the base unit.

Floppy Disk Drive or Combo Drive

Standard hardware for the server includes a floppy disk drive in the 3.5-inch slot. If your system contains the combo drive (containing a floppy disk drive and a PC Card adapter), it is replaced in the same way as the floppy disk drive. However, note the difference in cables as stated in the following instructions.

To replace the floppy disk drive or combo drive:

1. Remove both side panels. The following figure shows the floppy disk drive from the

back.

Screws

Bracket

Floppy Disk Drive

Floppy Cable

Power Cable

EIDE Cable

Peripheral

Cage

2. Disconnect the floppy cable and power cable from the drive. If the combo drive is

installed (not shown), also disconnect the two ISA bus cables (not shown). Note the position of the red stripe on the floppy cable and ISA bus cables. The cables must be installed on the new drive in the same orientation.

3. The drive is secured to the system using a bracket that extends to the sides of the

peripheral cage. Using a quarter-inch nutdriver, remove and retain the screws (two each side) from the peripheral cage as shown above.

4. Disconnect the EIDE cable attached to the CD-ROM drive.

5. Lift up the floppy disk drive and slide it back, then out the side of the system.

6. Remove and retain the four screws (two each side) from the bracket.

Screws

Bracket

7. Secure the new drive to the bracket using the screws removed in the previous step.

8. Install the drive into the base unit, and secure it using the screws removed in step 3.

9. Connect the previously removed cables to the new drive.

10. Reconnect the EIDE cable to the CD-ROM drive.

RAID Disk Drives

The disk drives in the RAID disk section can be easily replaced as follows.

To replace disk drives:

1. Open the drive access door on the front of the system.

2. Flip the drive latches outward to disengage the disk drive. The LED adjacent to the

drive turns off.

3. Slowly pull the drive out of the system. Do not let the drive fall when it clears the rails

inside the internal disk section. Refer to the following figure.

Slot

Guides

Latches

NOTE The drive may continue to spin for a short duration after you remove it from the system. It is

best to let the drive stop spinning before removal to avoid damaging the drive. Wait at least 30 seconds from the time the LED goes out until you move the drive any more.

4. To insert the new drive, extend the latching clips on the disk drive and align the rails on

the sides of the drive with the slot guides. The metal casing of the drive faces up.

5. Push the drive between the latching clips until it slides all the way into the slot and

firmly engages the connector.

6. Close the latching clips to lock the drive in the slot.

7. Restart the system and ensure the LED for the new disk drive lights and remains steady

green.

8. Label the new drive with the same ADP, CH, and ID numbers used on the replaced

drive.

RAID Disk Drive Section (MESAN52)

The RAID disk drive section includes the disk drive cage, backplane, sensor boards and LED boards. This assembly is always replaced as one unit.

To replace the RAID disk drive section:

1. Remove both side panels.

2. Remove all the drives from the disk drive section. Note the original slot location for

each drive. The drives should be reinstalled in the same slot locations from which they were removed.

3. Disconnect the two SCSI cables from the top of the disk drive section.

4. Disconnect the four power cables attached to the disk drive section.

5. Disconnect the LCD and LED cables from the disk drive section on the left side of the

unit.

LCD Cable

LED Cable

6. Remove and retain the screw from each corner of the RAID disk drive section.

Screw

Disk Drive Section

Screw

7. Slowly pull the RAID disk drive section out of the base unit.

8. Verify that the jumper settings on the back of the replacement RAID disk drive section

match the one being replaced.

NOTE If the system uses the AMI RAID controller, the jumper connectors JP2 and JP3 must not

have any jumpers installed.

9. Insert the new RAID disk drive section and secure it with the screws removed earlier.

10. Reattach the LED cable and the LCD cable to the RAID disk drive section.

11. Reattach the SCSI and power cables to the backplane.

−

CH 0 on the RAID controller or Ultra Wide SCSI controller must be attached to the

CH 0 connector on the disk section, and same for CH 1.

−

The order of the power cables is not critical.

12. Insert the disk drives into the system. The drives should be installed in the same slots

from which they were removed.

13. Replace the side panels.

14. Restart the system and ensure the LED for each drive lights and remains steady green.

If not, refer to the System Setup for status LED information.

AC Section (MESAN590)

The AC section is used only in systems with dual 550 Watt power supplies.

To replace the AC section:

1. Turn OFF the circuit breaker and disconnect the power cord.

2. If the system is in a rack, slide it out of the rack.

3. Remove the left side panel.

4. Disconnect the AC input wires.

5. Remove the screw securing the AC box (located adjacent to the AC input wire plug.

AC Section

6. Slide the AC section out toward the front of the system. After moving only an inch or so

the AC section will be released from the chassis.

AC Input Wires

DIMMs

7. Install the new AC section by locating the cutouts in the bottom of the housing above

the tabs on the mounting plane. Slide the housing toward the back of the chassis until it rests against the back of the chassis. Secure it with the screw removed in step 5.

8. Connect the AC input wires.

9. Replace the right side panel.

10. Connect the AC power cord to the system to the AC receptacle.

11. Turn the circuit breaker back to the ON position.

See the section, “Adding Memory,” in Chapter 3, “Upgrading the System,” for important details on handling DIMMs. The DIMM sockets are located just above the power connectors P1 and P2 on the system board. See the system board diagrams in Chapter 5, “System Board,” for connector and socket locations.

To replace a DIMM:

1. Access the DIMM sockets. See Chapter 1, “Accessing the Components,” for details.

2. Press the release tabs outward, away from each other.

3. Grasp the top edge of the DIMM and pull it out of the socket.

4. Remove the new DIMM from the antistatic package.

5. Orient the DIMM so that the notches match the keys in the socket.

DIMM

Release Tab Notch

6. Insert the DIMM at a 90-degree angle (vertical to the system board) into the socket.

7. Push gently straight down until the release tabs snap into place.

DIMM socket

System Board (MSMT497A)

This section describes how to replace the system board MSMT497A. The replacement board comes with no processors or memory. After installation, you will remove the processors and memory from the old board and install them on the new board. See the system board

diagrams in Chapter 5, “System Board,” for connector and socket locations.

Several Fastex fasteners are mounted in the right side of the chassis to secure the system board and dual processor retention module (DPRM) supports. Do not overtighten the screws to these fasteners. If you do, the fasteners may distort.

Hole in right side of chassis

Fas tex fastener

To remove the system board:

1. Remove the right side panel. The following figure shows the sytem board.

2. Note the location and orientation of all cables connected to the option cards to ensure

proper reinstallation. Remove the option cards and place on an antistatic surface.

3. Lay the chassis down on its left side.

4. Note the locations where all cables connect to the system board.

5. Disconnect the power cables from the center of the system board. Disconnect the EIDE,

floppy, and SCSI cables from the board. Disconnect any other cables from the board.

6. Remove the processor fan duct by removing 3 screws at the back of the chassis.

7. Remove the eight single jackscrews mounted in the I/O panel area. These are used to

secure the D-Shell I/O ports to the I/O panel.

WARNING Use care when removing or installing the screws to avoid damaging components on

the system board.

8. Remove the 19 screws holding the system board in place. Remove the six crews

securing the dual Pentium II processor support bracket, and then remove the processor support bracket; retain it for reinstallation. Remove the remainder of the screws and retain them for reinstallation.

9. Carefully remove the system board and place on an antistatic surface or in an antistatic

bag.

To install a new system board:

1. Remove the new system board from its antistatic packaging and orient it in the proper

way to install in the chassis.

2. Carefully set the new system board into the system, ensuring that the I/O ports are in

their proper locations against the I./O panel.

3. Reinstall the jack screws in the I/O panel locations where they were removed previously.

4. Install 13 of the screws used to secure the system board in place.

5. Install the dual processor support bracket using the remaining 6 screws.

6. Remove the processor(s), processor terminator or VRM (if installed), and memory

DIMM(s) from the old system board and install on the new system board in their respective location(s).

7. Attach all internal cables to the system board that were disconnected earlier. If you need

help identifying cable connections, see Chapter 5, “System Board.”

8. Install the option cards in their original slots and secure them in place with the screws

removed previously.

9. Stand the unit up and reinstall the right side panel.

10. Attach all applicable external peripheral cables (mouse, keyboard, monitor, etc.).

Power Distribution Board (MSMT498 or MSMT499)

The power distribution board assembly contains the board, a metal support bracket, and cables. If the power distribution board fails, the assembly is replaced as one unit.

Power Distribution Board MSMT498 is used for redundant power supplies.

Power Distribution Board MSMT499 is used for fixed power supply.

To replace the power distribution board assembly:

1. Remove the left and right side panels. The following figure shows the power

distribution board from the right side.

Power Distribution Board

2. Remove the cables and screws attached to the power distribution board as shown in the

following figures. Four screws (two on each side) secure the power distribution board to the chassis.

−

Right side

Power Distribution Board

Bracket

Screws

−

Left side

Power Distribution Board

Screws

3. If replacing one of the hot swap power supplies (MSMT498), disconnect the AC ground

wires from the ground lug as shown in the following figure.

4. Disconnect the blue and brown wires from the terminal block as shown. Take note of

the location of the blue (Line) and brown (Neutral) wire locations on the terminal block.

AC Ground

Wires

Ground Lug

Terminal

Block

5. Pull the power distribution board assembly out the left side of the system.

6. Place the new assembly into the system and secure it with the screws removed in step 2.

7. Connect the cables to the power distribution board.

8. Connect the AC ground wires to the ground lug and connect the blue and brown wires to

the terminal block.

9. Replace the side panels.

LCD Board (MSMT344)

To replace the LCD board:

1. Remove both side panels.

2. Remove floppy drive screws. Loosen the screws for the bottom drive tray. Refer to the

following figure.

Screws For Floppy Disk Drive

Screws For Lower Drive Tray

3. Slide the floppy drive and lower tray into the system. This allows the front panel to

clear the drives when removing it.

4. Remove two screws (one each side) securing front panel to the chassis.

Screw For Front Panel (inside access hole)

5. Grasp the bottom of the front panel and pull up and out to remove it from the system.

The LCD board is attached to the inside of the front panel.

6. Disconnect the cables attached to the LCD board. Note the location of each cable.

7. Remove the six screws securing the board to the front panel.

8. Remove the plastic film covering the LCD screen of the new LCD board.

9. Secure the new LCD board with the six screws and reconnect the cables.

10. Replace the front panel.

11. Secure the floppy disk drive and bottom drive tray flush with the front panel.

12. Replace the side panels.

Power Supplies

This section describes how to replace the single, fixed 300 Watt power supply, and the dual, 550 Watt power supply options.

300 Watt Power Supply (MPWS175)

To replace the 300 Watt power supply:

1. Power off the system and disconnect the power cord from the base unit.

2. Remove both side panels.

3. Remove the four screws that secure the power supply to the base unit.

Screws

(Both sides)

4. Remove the access panel on the left side of the chassis by removing the two screws

holding it in place. This will allow access to the power distribution board and to facilitate routing cables during removal and reinstallation of the power supply.

5. Disconnect the main power cable from the power distribution board.

6. Disconnect the peripheral power cables from the CD-ROM drive, floppy drive, disk

drive section, and the power distribution board (where applicable).

7. Remove the power supply and support bracket from the back of the chassis.

8. Remove the four screws securing the power supply to the support bracket.

9. Install the new power supply onto the support bracket with the four screws.

10. Install the power supply in the back of the chassis with the four screws removed earlier.

11. Connect the main power cables of the new power supply to the power distribution board.

12. Connect the other components as shown in the following table.

Cable

P1 J18, Power Distribution

P2 J19, Power Distribution

P5 MCBL145A, Peripheral

Destination Cable Destination

MCBL206 J20, Power Distribution Board to

Board

Floppy and CD-ROM

MCBL085 J21, Power Distribution Board

Board

(second JBOD only)

MCBL085 J22, Power Distribution Board

Extension/Splitter to Top

(second JBOD only) two RAID or drives 3/4 in first JBOD

P7 J25, Power Distribution

Board

P8 MCBL145A, Peripheral

MCBL085 J23, Power Distribution Board to

upper two external drive bays

P3 J24, Power Distribution Board Extension/Splitter to Bottom two RAID or drives 1/2 in first JBOD

13. Secure the power supply to the system base unit.

14. Install the access panel cover.

15. Replace the side panels and connect the power cord to the base unit.

550 Watt Power Supplies (MPWS139)

The 550 Watt power supplies are hot-swappable. It is not necessary to power off the system before replacing one of these power supplies.

CAUTION Do not remove a power supply until the replacement power supply is available. The fans in

the failed power supply continue to operate and are necessary to maintain airflow.

To replace a 550 Watt power supply:

1. Turn the spring-lock screw counter-clockwise until it pops out on the power supply being replaced. Refer to the following figure.

2. Grasp the power supply handle, as shown in the following figure, and pull the power supply out.

AC OK and DC OK LEDs

Power Supplies

Handle

Spring- lock Screw

3. Install the new power supply into the base unit. When the power supply properly engages the connectors, the AC OK and DC OK LEDs turn green.

NOTE If the system is off, the AC OK LED turns green when you turn on the circuit breaker. The

DC OK LED lights when you turn on the system.

4. Turn the spring-lock screw clockwise to secure the power supply.

Cooling Fans(CFAN123)

To replace the cooling fans:

1. Remove the right side panel. The following figure shows the cooling fans from the right side of the system.

Fan Bulkhead and Cables

2. Disconnect the fan power cable from the inline connector. The inline connector is mounted to the fan bulkhead.

WARNING Ensure the fans stop spinning before continuing.

3. Remove the fan by grasping it firmly and pulling out the right side.

Cooling Fan (one of four)

4. Install the new fan. Push firmly to snap the fan into place.

5. Connect the fan power cable to the inline connector.

6. Replace the side panel.

Lithium (CMOS/Clock) Battery

Before removing the system battery, start the system and enter BIOS Setup. Page through all the screens, making note of all parameters. Parameters include date, time, hardware configuration, and other data.

CAUTION Do not change any parameters. Doing so could cause your system to operate improperly or

not at all. After replacing the battery, you will need these BIOS parameters to ensure the system is restored to its previous state.

The battery is located near the bottom front of the system board. See the system board

diagram in Chapter 5, “System Board,” for details. When you remove the battery, the system will lose its operating parameters stored in CMOS. As a result, the system BIOS parameters are lost.

After you install the new battery, you must reset the date and time and reconfigure the BIOS. See the InterServe 800 System Setup for details on updating and configuring the BIOS.

WARNING There is a danger of explosion if the battery is incorrectly replaced.

WARNING Replace the battery with the same or equivalent type only, as recommended by the

battery manufacturer. Dispose of used batteries according to the battery manufacturer’s instructions.

To replace the battery:

1. Remove any option cards that restrict access to the battery. See “Option Cards” for details.

2. Note the positive orientation of the battery. Carefully remove the discharged battery by grasping it firmly and pulling it out of the socket.

3. Install the new battery in the same orientation as the old battery.

4. Dispose of the battery according to the manufacturer’s instructions.

5. Install the option cards that you removed.

3 Upgrading the System

This chapter describes how to upgrade an InterServe 800 server by adding memory, processors, and external SCSI drives.

Preparing to Upgrade the System ....................................................................................... 28

Adding Memory................................................................................................................. 28

Adding a Processor............................................................................................................ 30

Adding Expansion Cards ................................................................................................... 31

Slot Locations...................................................................................................... 32

Upgrading Graphics Cards ................................................................................... 32

Installing Expansion Cards .................................................................................. 33

Assigning System Resources................................................................................ 33

Adding Peripherals ............................................................................................................ 34

Peripheral Device Locations................................................................................. 35

Installing Devices in the Drive Bays..................................................................... 36

Adding External SCSI Drives ............................................................................................ 38

SCSI Cable Length Guidelines............................................................................. 39

SCSI Cable Quality Guidelines............................................................................. 39

SCSI ID Guidelines.............................................................................................. 40

SCSI Termination Guidelines for External Devices .............................................. 40

Connecting the External SCSI Drive .................................................................... 40

Changing SCSI Host Adapter or Device Settings.................................................. 41

Disabling SCSI Sync Negotiation......................................................................... 41

Preparing to Upgrade the System

Obey all warning and caution labels while replacing parts. The procedures in this chapter assume you have opened the unit to access the internal components. After you have finished

servicing the system, close the unit as described in Chapter 1, “Accessing the Components.”

WARNING Disconnect the system from AC power before servicing internal components! Failure

to remove AC power may result in equipment damage or personal injury.

WARNING Follow all warnings and cautions in servicing instructions. If you fail to follow

documented, approved procedures, personal injury or damage to equipment can result.

CAUTION Use an antistatic wrist strap for all servicing procedures to avoid the possibility of

electrostatic discharge.

CAUTION Do not overtighten screws and other fasteners to avoid damaging threads.

CAUTION The system produces high-leakage current. Flip the circuit breaker (if included) to the OFF

position when servicing or upgrading the base unit.

Adding Memory

You can upgrade memory on the system board in 64 MB, or 128 MB increments. The maximum total memory is 512 MB. Memory upgrade kits from Intergraph Computer Systems contain one DIMM and a disposable antistatic wrist strap.

CAUTION System memory modules from Intergraph Computer Systems are certified for use with

Intergraph computers at extremes of temperature and system load to ensure reliable performance. Memory modules available from other vendors may not function properly or reliably in your Intergraph Computer Systems computer.

To avoid damaging DIMMs and voiding the warranty, take the following precautions:

Do not touch the gold-plated finger contacts.

Do not install DIMMs that have tin-plated finger contacts.

Do not bend, twist, drop, or otherwise handle DIMMs carelessly.

Do not expose DIMMs to moisture or extreme temperatures.

Do not remove DIMMs from the antistatic bag until installation.

Before you install memory, do the following:

Inspect DIMM keying. The finger contacts on the DIMM must match the socket configuration. This ensures that you have the correct voltage and type of DIMM.

Inspect DIMM contacts. The DIMM must have gold-plated fingers that match the goldplated socket contacts.

The following table shows possible memory configurations. Each bank contains one socket. NP designates the bank is not populated.

Memory

Bank 0 Bank 1 Bank 2 Bank 3

32 MB 32 MB NP NP NP 64 MB 64 MB NP NP NP 128 MB 64 MB 64 MB NP NP

128 MB NP NP NP

256 MB 64 MB 64 MB 64 MB 64 MB

64 MB 64 MB 128 MB NP 128 MB 128 MB NP NP

512 MB 128 MB 128 MB 128 MB 128 MB

To install the memory upgrade:

1. Remove the left side panel. See Chapter 1, “Accessing the Components,” for details.

2. Locate the memory sockets (SDRAM DIMM slots) on the system board.

Bank 3 Bank 2 Bank 1

Population

Sequence

Bank 0

Memory Soc kets (SDRAM DIMM Slots)

3. Remove all installed DIMMS (memory modules). Ensure the release tabs on both ends of the socket are open.

4. Install DIMMs one bank at a time in sequence from socket 0 to socket 3, beginning with the first open socket.

5. Grasp the DIMM so that the notch positions match the keys in the socket. See the

illustration in the section, “DIMMs,” in Chapter 2, “Replacing System Components.”

6. Insert the DIMM at a 90-degree angle into the socket.

7. Press the DIMM straight down into the socket. Do not rock the DIMM; apply even pressure along the top edge of the DIMM until the release tabs snap into place.

8. Swing the power supply back into the chassis and secure it with the plungers.

9. Restart the computer after adding or replacing DIMMs. The computer detects the new memory automatically.

Adding a Processor

Systems with a single processor are upgradeable to a dual processor capability. You can install a processor module with heat sinks (Intergraph Computer Systems standard part) or a boxed processor module with integral fan (non-Intergraph Computer Systems part). Singleto-dual processor upgrade kits include a CPU with attached heat sink and a separate voltage regulator module (VRM). Intergraph Computer Systems offers two processor speeds, 300 MHz and 333 MHz; see Chapter 4, “System Hardware,” for more details.

Processors are mounted in a dual processor retention module (DPRM), which surrounds the processor slots. See the system board diagrams in Chapter 5, “System Board,” for the location of processor slots and related connectors.

NOTE You do not have to change any jumper settings when installing a second processor.

NOTE Both processors in a multi-processor system MUST be the same speed.

To install a single-to-dual processor upgrade:

1. Remove the right side panel to expose the processor slots. See Chapter 1, “Accessing the Components,” for details.

2. Remove the bus termination card from J8, the secondary processor slot. Place the card in an antistatic package.

3. Orient the processor module so that the heat sink fins point to the bottom of the chassis and insert the module into the open socket on the DPRM.

4. Press straight down and apply even pressure at both ends of the CPU module until it seats. The DPRM is keyed to ensure proper insertion.

5. Press the processor module locking tabs outward until they click into the locked position.

6. Find J10, the secondary voltage regulator module (VRM) socket. It is immediately above J8.

7. Remove the new VRM from its antistatic package and slide the VRM into its socket.

8. Press straight down and apply even pressure at both ends of the VRM until it snaps into place. The socket is keyed to ensure proper insertion.

9. If you installed a boxed processor with integral fan into the secondary processor slot, connect the fan cable to J1, located near the bottom left corner of the system board. The fan cable for a boxed processor installed in the primary processor slot connects to J4, located near the bottom right of the system board. (Note that your InterServe 800 is not equipped with a boxed processor fan when shipped from Intergraph Computer Systems.)

10. Reinstall the ride side panel and restart the system. The number of installed prrocessors displays at the blue Windows NT boot screen.

Adding Expansion Cards

You can install Peripheral Component Interconnect (PCI), non-compliant PCI, Industry Standard Architecture (ISA), and Plug-n-Play (PnP) expansion cards in the system. See below for a general description of the types of cards.

PCI cards contain configuration registers that define resource information to the system during startup. PCI cards do not require manual system configuration when installing

the card. The system BIOS detects the board’s presence during startup and reads information from the board’s configuration registers to assign the necessary system resources.

NOTE All PCI expansion cards sold by Intergraph Computer Systems fully comply with the

Peripheral Component Interconnect Specification, 2.1.

Non-compliant PCI cards mechanically comply with the Peripheral Component Interconnect Specification 2.1, but do not contain configuration registers that allow the

system to automatically assign the necessary resources. These cards install in PCI slots, but you must configure the BIOS to assign system resources before installing the card. In this regard, they are like ISA cards, as described below.

ISA cards do not contain registers that define the resource information to the system during startup. Therefore, you must configure the BIOS to define the card to the system before installing the ISA card. This reserves system resources for the card.

PnP cards are ISA cards that contain configuration registers like PCI cards. During startup, the system BIOS automatically detects the installed card and assigns the necessary system resources. Since a PnP card is ISA-based, you install it in the ISA slot.

NOTE Assign system resources for an ISA card and any non-compliant PCI cards before

installation. See “Assigning System Resources” later in this chapter.

Each installed PCI card must draw less than 25 watts of power. The total allowable maximum wattage for PCI cards is 175 watts. The PCI slots are limited to 25 watts power dissipation per the Peripheral Component Interconnect Specification, 2.1 .

Slot Locations

The expansion slots are located at the bottom left section of the system board, as shown below. Slots 1 through 4 are primary slots and slots 5 through 7 are secondary. Slot 7 is a shared PCI/ISA slot. You can install a card in the number 7 PCI slot or the ISA slot, but not both.

Slot 7 - ISA (shared)

Slot 0 - AGP

Upgrading Graphics Cards

The following graphics cards are used in InterServe 800 systems:

Intergraph G76 (standard)

Slot 7 - PCI (Shared)

Slot 6 - PCI Slot 5 - PCI Slot 4 - PCI Slot 3 - PCI Slot 2 - PCI Slot 1 - PCI

Intergraph Intense 3D 100

Matrox Millennium II

Intergraph Computer Systems installs the graphics card into PCI slot 2 by default. If necessary you can move the card to PCI slots 1, 3, or 4. Do not install graphics cards in PCI slots 5, 6, or 7. See the following procedure for steps to install a graphics card.

Installing Expansion Cards

For internal modem cards, SCSI adapter cards, and so forth, see the documentation that came with the card for additional details on configuration, cable connections, and operation.

To install an expansion card:

1. Remove the right side panel as described in Chapter 1, “Accessing the Components.”

2. Locate an open slot. If you are installing an Intergraph Computer Systems graphics card, see the discussion above for required slot assignments.

3. Remove the blanking plate for the slot. Keep the retaining screw.

4. Remove the expansion card from its antistatic packaging.

5. Slide the expansion card carefully into the card guides. Ensure that the gold-fingered connectors on the board’s edge are aligned properly with the slot connector.

6. Push the card into the slot firmly and evenly until it is fully seated in the slot connector.

7. Inspect the connection. If it does not appear to be correct, remove and reinstall the card.

8. Install the retaining screw.

9. Attach any required cables to the internal or external connectors.

10. Install the right side panel and restart the system. If necessary, assign system resources to the new card.

Assigning System Resources

Some expansion cards include a configuration diskette that you can use to reserve the system resources required for the card. Other expansion cards do not include a diskette, but require that you manually program the BIOS with the configuration information.

See the “Configuring the BIOS” chapter in the InterServe 800 System Setup for details on assigning system resources and configuring the BIOS for expansion cards.

NOTE Treat non-compliant PCI cards and PCMCIA cards as ISA cards for assigning system

resources.

Adding Peripherals

The system provides dual-channel Wide Ultra SCSI-3 support for internal and external mass storage devices.

The system features the following peripheral bays:

One 3.5-inch x 1-inch external bay for floppy or combo drive.

One 5.25-inch x 1.6-inch external bay for CD-ROM drive.

Two 5.25-inch x 1.6-inch external bays for disk drives or other devices.

JBOD systems provide either 4 or 8 (depending on configuration ordered) 3.5-inch x

1.6-inch internal bays for system or optional disks.

RAID systems provide 8 each 3.5-inch x 1.6-inch internal bays.

See the following chapters for related information and important details:

Chapter 4, “System Hardware,” for details on power supply cable connectors and pinouts.

Chapter 5, “System Board,” for details on SCSI connector locations and pinouts.

Chapter 6, “Peripherals,” for details on internal drive locations, configurations, jumpers, and cables.

Remember the following when installing devices in the system’s drive bays:

If you are installing a SCSI drive, have the vendor’s documentation available to follow instructions for setting the SCSI ID, disabling termination, installing device drivers when required, and configuring other drive attributes.

If you are installing a drive that connects to an adapter card, see the vendor’s documentation for installing the adapter card and required cables. See “Adding Expansion Cards” for details.

If you are installing a device with an EIDE interface, it must be mounted in one of the external drive bays only. You must also install a new EIDE control cable for your device.

NOTE The internal SCSI cable provides termination for the SCSI bus. When installing internal SCSI

drives, be sure to disable SCSI termination on the drives.

Peripheral Device Locations

You can add optional mass storage devices to the internal and external drive bays. The following shows peripheral device locations 1 through 12. Devices are installed in all locations for illustration.

Location 12, Floppy Drive Location 11, EIDE CD-ROM Drive

Location 10 Location 9

Location 8

Location 7

Location 6

Location 5

Location 4

Location 3

Location 2 Location 1, System Dri ve

The floppy, EIDE CD-ROM, and system drives are standard; other devices are available as options. Both JBOD and RAID start numbering drive bays from the bottom.

The following table provides the device locations and related information.

Location

Drive Peripheral Bay Max Bay Capacity SCSI ID

12 Floppy drive External 3.55-inch x 1.0-inch — 11 EIDE CD-ROM External 5.25-inch x 1.6-inch — 10 Add-on device External 5.25-inch x 1.6-inch 9 or EIDE 9 Add-on device External 5.25-inch x 1.6-inch 8 or EIDE 8 Add-on disk drive Internal 3.5-inch x 1.0 or 1.6-inch 7 7 Add-on disk drive Internal 3.5-inch x 1.0 or 1.6-inch 6 6 Add-on disk drive Internal 3.5-inch x 1.0 or 1.6-inch 5 5 Add-on disk drive Internal 3.5-inch x 1.0 or 1.6-inch 4 4 Add-on disk drive Internal 3.5-inch x 1.0 or 1.6-inch 3 3 Add-on disk drive Internal 3.5-inch x 1.0 or 1.6-inch 2 2 Add-on disk drive Internal 3.5-inch x 1.0 or 1.6-inch 1 1 System disk drive Internal 3.5-inch x 1.0 or 1.6-inch 0

NOTE If you are installing an additional EIDE device, you must mount the device in Location 9 or 10

and install an additional EIDE control cable due to cabling restrictions.

Installing Dev ices in the Drive Bays

NOTE Two internal bay drive brackets are installed in the chassis for mounting drives.

To install a drive in the external drive bay:

1. Turn off the ciruit breaker and remove the AC power cord from the system.

2. Remove both side panels.

3. Remove the four screws that secure the external bay disk drive tray to the chassis. There are two hex head screws on the right side, and two phillips head screws on the left side.

External Bay Mounting Screws (4)

4. From inside the chassis, grasp the front of the tray and slide it out of the bay.

5. If you are installing a SCSI device, do both of the following (see Chapter 6,

“Peripherals,” for details):

−

Set the SCSI ID on the new drive to an unused ID number.

−

Disable termination on the new drive.

6. If you are installing an IDE device, proceed to the next step.

7. Do one of the following:

−

If installing a standard disk drive, place the disk drive in the tray, align the mounting holes, and install the four mounting screws. See the following figure.

−

If installing a 1.6-inch device, such as a tape drive or a CD writer, remove the mounting guide from the drive tray and attach the guide to the right side of the device. See the following figure.

−

If installing a Kingston removable disk drive module, do not use the mounting guide.

Drive

Mounting Guide

Drive Tray

Access Hole (2)

8. Do one of the following:

−

Slide the tray assembly with standard disk drive into the chassis, align the mounting holes, and install the screws

−

Slide the 1.6-inch device into the chassis, align the mounting holes, and install the screws

−

Slide the Kingston removable disk drive module into the chassis, align the mounting holes, and install the mounting screws on the left and right sides of the chassis

9. Connect the proper interface cable (either SCSI or EIDE) and the power cable to the disk drive. Power cables for drives added to the external drive bays are clipped in the bottom of the chassis on the left side.

To install a drive in an internal bay (JBOD only):

1. Remove the right and left panels. See Chapter 1, “Accessing the Components,” for details.

2. Open the disk area door.

3. Remove the screws that secure the drive bay blanking plate to the front of the chassis.

4. Do all of the following:

−

Set the SCSI ID on the new drive to an unused ID number

−

Disable termination on the new drive

See Chapter 6, “Peripherals,” for details on these tasks.

5. Slide the drive into the JBOD housing in the next available opening from the bottom of the drive bay.

6. Install 4 screws to secure the drive to the JBOD housing.

7. Connect power and SCSI controller cable to the new drive.

8. Replace the drive bay blanking plate.

9. Close the disk area door and install the side panels.

Adding External SCSI Drives

You can add single-ended external SCSI drives to the system by connecting them to the Ultra SCSI port on the back of the system. A Wide Ultra SCSI external port is optional on RAID systems only. See “External Ports” in Chapter 5, “System Board,” for an illustration of port locations.

You can also install additional SCSI expansion cards (adapters) to support external SCSI

drives. See “Adding Expansion Cards” for details.

NOTE Most SCSI adapters do not recognize a hard disk drive that was formatted using a different

brand of adapter. For example, a hard disk drive formatted with an Adaptec SCSI adapter will not work with a Symbios SCSI adapter. You must use only Symbios-formatted hard disk drives with a Symbios SCSI adapter.

SCSI Cable Length Guidelines

The number of drives and length of the cables used to connect the drives is a factor when using SCSI-1, Fast SCSI (SCSI-2), Ultra SCSI, and Wide Ultra SCSI drives. Fast SCSI, Ultra SCSI, and Wide Ultra SCSI impose shorter cable restrictions than SCSI-1. The total length of the SCSI cabling must not exceed the following:

Drives

One to Four 19.8 ft

Five to Seven 9.9 ft

NOTE The SCSI controller (on the system board or an adapter card) counts as one device.

SCSI-1 Fast SCSI-2 Ultra SCSI Wide Ultra SCSI

(6 meters)

(3 meters)

9.9 ft (3 meters)

4.5 ft (1.5 meters)

9.9 ft (3 meters)

4.5 ft (1.5 meters)

The total length of the SCSI cabling is the sum of the following:

Wide Ultra SCSI cable inside the system - 52 inches (132 cm)

Ultra SCSI cable inside the system - 14 inches (35.5 cm)

SCSI cable inside each device - typically 8 inches (20 cm)

SCSI cable between the system and the first device

SCSI cable between each device

SCSI Cable Quality Guidelines

To ensure data integrity and optimum performance, do the following:

Use only Intergraph Computer Systems SCSI cables. Cables from other vendors may not provide adequate shielding.

Use the shortest cables possible to connect SCSI devices to the system and to each other.

SCSI ID Guidelines

By default, specific devices use the following SCSI IDs:

System disk drive (standard for boot device) uses ID 0

SCSI bus always uses ID 7

Read/write CD-ROM (optional) drive uses ID 4

4 mm DAT drive (optional) uses ID 6

Iomega Jaz drive (optional) uses ID 6

NOTE To easily determine the ID of each SCSI device on the system, restart the system. When the

BIOS screen displays, look for the list of SCSI devices and write down the ID for each device.

Some SCSI devices feature push switches to set the ID, while others have DIP switches or jumpers. See the vendor documentation for details on setting the ID.

SCSI Termination Guidelines for External Devices

Follow the guidelines below for terminating SCSI devices:

Enable termination on the last external drive on the SCSI cable chain. This is not true for devices installed on the Wide Ultra SCSI bus inside the chassis, that SCSI cable has an active terminator installed when shipped from Intergraph Computer Systems.

Disable termination on all other external drives on the SCSI cable chain.

Use only an active terminator on externally-terminated devices.

Connecting the External SCSI Drive

To add an external SCSI drive:

1. Connect one end of the external SCSI cable to one of the following external ports:

−

The standard Ultra SCSI port, located to the left of the I/O panel

−

The optional Wide Ultra SCSI port, located on the left side of the I/O panel on RAID system only and is available only when ordered as an option at the time the system is originally purchased.

2. Connect the other end of the cable to the SCSI device.

3. Set the SCSI ID of the device to an unused number. See “SCSI ID Guidelines” above

for details.

4. Do one of the following:

−

If the device is the last or only device on the SCSI chain, enable SCSI termination

−

If the device is the first device or is between the first and last device on the SCSI chain, disable SCSI termination

5. Ensure that the power switch on the device is in the off position, and then connect the power cord to the device and then to an AC receptacle.

6. Turn on the power to the device and any other devices on the SCSI chain.

7. Start the system. If necessary, install the software drivers and configure the drive

according to the vendor’s instructions.

Changing SCSI Host Adapter or Device Settings

Depending on system configuration, or the capabilities of SCSI devices connected to the system, you may need to use the SCSI Configuration Utility to change host adapter or device settings. See the System Setup delivered with the system for details.

Disabling SCSI Sync Negotiation

Use the following instructions if you need to disable the SCSI sync negotiation, which forces the controller to transfer data at a specified rate (slower than its capability) for the target devices.

To disable sync negotiation:

1. Power off the system and reboot into DOS using the SYSUTIL diskette.

2. From the SYSUTIL main menu, select SCSI Select Utility.

3. From the Options box, select Configure/View Host Adapter Settings.

4. Select the SCSI Device Configuration option.

5. Change the Initiate Sync Negotiation values for all the attached SCSI devices (represented by their SCSI ID number) to no.

6. Set the Maximum Sync Transfer Rate values for the devices to the desired settings. If changing these settings to extend cable lengths or add more devices, set Ultra SCSI devices to 10.0 or less.

NOTE The Advanced Configuration Option allows you to disable the Ultra SCSI controller. When

Ultra SCSI is enabled, the available sync rates are 20, 16, 13.4, 10. When Ultra SCSI is disabled then 10, 8, 6.7, 5 are available.

7. Press ESC until the Exit Utility dialog displays. Select Yes and press ENTER.

8. Press any key to restart the system.

4 System Hardware

This chapter contains technical information about the hardware included in an InterServe 800 system.

Hardware Overview........................................................................................................... 45

Functional Diagram ........................................................................................................... 46

Systems with a 300 Watt Power Supply (MPWS175)............................................ 46

Systems with 550 Watt Power Supplies (MPWS139)............................................ 47

LCD Board (MSMT344).................................................................................................... 48

Board Layout........................................................................................................ 49

Cable Connectors................................................................................................. 50

Cable Routing and Pinouts ................................................................................... 50

Power Distribution Board (MSMT498 or MSMT499)........................................................ 51

Board Layout........................................................................................................ 51

Cable Routing and Pinouts ................................................................................... 52

AC Section (MESAN590).................................................................................................. 55

RAID Disk Drive Section (MESAN52).............................................................................. 56

Assembly Layout..................................................................................................56

Cable Routing and Pinouts ................................................................................... 57

Channel Module................................................................................................... 58

SAF-TE Card....................................................................................................... 58

Jumper Settings.................................................................................................... 58

Power Supplies.................................................................................................................. 59

300 Watt Power Supply (MPWS175)....................................................................59

550 Watt Power Supplies (MPWS139)................................................................. 60

Operating Characteristics ..................................................................................... 61

Connector Pinout ................................................................................................. 62

Cooling Fans and Temperature Sensors .............................................................................63

The following hardware comes standard with an InterServe 800 system:

System board

LCD board

Power distribution board

AC section (hot swap power supply configurations only)

Disk drive section

Power supplies (may contain only one power supply)

Peripherals

Cooling fans and temperature sensors

If your system includes any of the following hardware, refer to the documentation delivered with the hardware for additional information:

Monitors

RAID controller

InterRAID-8 disk array cabinet

Networking card (additional card - the system board includes and on-board network adapter)

InterSite Server Monitor card

Interface concentrator

Uninterruptible power supply

Hardware Overview

The following figure shows the major parts and assemblies inside the server. The table provides the Intergraph part numbers with a page reference to go to for more information.

System Board

Section

Power

Supplies

Power

Distributi on

Board

Cooling Fan (4 each)

LCD Board

Floppy Disk Drive

CD-ROM Drive

RAID Disk Drive Section and Disk Drives

Part Page Part Page

System Board (MSMT497A) 65 RAID Drive Section (MESAN52) and

Disk Drives (FDSKxxx)

Cooling Fan (CFAN123) 63 Power Distribution Board (MSMT498 or

MSMT499)

LCD Board (MSMT344) 48 Single Power Supply (MPWS175) or

Dual Power Supplies (MPWS139)

Floppy Disk Drive (CDSK146) 88 AC Section (MESAN59) (Hot Swap

Power Supplies only)

CD-ROM Drive (CDSK177) 84

Functional Diagram

The following diagrams shows the power and data signals of the base unit components.

Systems with a 300 Watt Power Supply (MPWS175)

Power Data Power and Da t a

System Board

(MSMT497A)

AC In

Keyboard

Mouse

Power

Supply

Fan

Power Distribution Board ( MSMT498)

Intruder

Alert

Cooling Fan Cooling Fan Cooling Fan Cooling Fan

System

Keyswitch

LCD Board

(MSMT344)

AC In

Monitor

Serial

Ports

Parallel

Port

SCSI

Port

CD-ROM Dri v e

Floppy Disk Drive

Disk Drive Section

RAID

only

Systems with 550 Watt Power Supplies (MPWS139)

Power Data Power and Da t a

System Board

(MSMT497A)

AC In

Speaker

Keyboard

Mouse

AC Box

Power Supply Power Supply

Power Distribution Board ( MSMT498)

Intruder

Alert

Terminal Block

Cooling Fan Cooling Fan Cooling Fan

Cooling Fan

System

Keyswitch

LCD Board

(MSMT344)

AC In

Monitor

Serial

Ports

Parallel

Port

SCSI

Port

CD-ROM Dri v e

Floppy Disk Drive

Disk Drive Section

LCD Board (MSMT344)

The LCD board consists of a four-line display screen, soft-touch buttons, and status LEDs that allow you to monitor the chassis (and the disk section, if RAID). The screen reports various status and events in a software-independent manner. The InterServe 800 power supplies feature a +5V output -- which is always on -- to report the system status even if the system is powered off.

The LCD board functions as a central resource through which system power and status signals are routed. The system monitor accepts status inputs from the dual 550 Watt power supplies, internal RAID disk section, temperature sensors, safety interlocks, and fans, and generates the appropriate alarms and alerts.

NOTE If the microcontroller of the LCD board fails, it will not issue a command to the power

supplies to turn-on when the keyswitch is moved to the on (|) position. The LCD board will not display any text on the LCD screen, and should be replaced.

The following diagram illustrates the routing of signals used to collect and report status through the microcontroller.

Power Supply

Status

ID PROMs

Voltage

Sensors

Microcontroller (System

Monitor Firmware)

I2C Bus

Internal RAID

Interface

CPU/RAID

Select

Data MUX

LCD Screen

FPGA

Status LEDs

ISM Interface

Menu Buttons

Fan RPM Sensor

Hot-Swap Only

Board Layout

SIDE 1

Status

LEDs

SIDE 2

NVSRAM

CPU/RAID

Select Button

LCD Screen

Menu ButtonsBeeper

Firmware PROM

FPGA

Data MUX

Cable Connectors

J100 (Side 2)

Cable Routing and Pinouts

From Cable To

J2 MCBL203A, system status Power distribution board

J5 MCBL229A, LCD Disk drive section, J2 J6 MCBL230A, LED Disk drive section, J3 J100 MCBL208A, power on/off Keyswitch

J2: MCBL203A, System Status Pinout

Refer to “Power Distribution Board (MSMT498 or MSMT499)” for the pinout of the system status cable. See table “J1: MCBL203A, LCD Board System Status” on page 53.

J5: MCBL229A, Disk Drive LCD Pinout

Refer to “Disk Drive Section (MESAN52)” for the pinout of the RAID LCD cable. See table “J2: MCBL229A, RAID LCD Cable” on page 57.

J6: MCBL230A, Disk Drive LED Pinout

(MSMT498), J1

Refer to “RAID Disk Drive Section (MESAN52)” for the pinout of the RAID LED cable. See table “J3: MCBL230A, RAID LED Cable” on page 57.

J100: MCBL208A, Power On/Off Pinout

Signal Color

1 Off Black 2 On Red 3 Reset Brown 4 Ground Orange

Power Distribution Board (MSMT498 or MSMT499)

The power distribution board (MSMT498 or MSMT499) routes the signals from the power supplies to the various parts of the system.

Board Layout

J7 J8 J9 J10

J12 J13

MSMT498

Only

J2 J3 J4

J11

J14

MSMT498 Only

J16 J17

J21 J22

J24 J25

MSMT499 Only

NOTE See page 65 for pinout of the power supply connectors (J16, J17).

J18

J19

J20

J23

Cable Routing and Pinouts

Depending on the power supply (PS) used, the connections vary according to the following table. The pin functions are the same for the 4-pin power supply connectors and cables MCBL206A, MCBL050A, MCBL085A.

NOTE Legend: + = 300 Watt; - = 550 Watt; * = Both

Power Distribution Board Cable Routing

From

J1 * 1 MCBL203A LCD board, J1 J4 * 1 MCBL064A J22, System Board J5, J6 * 1 MCBL078A ISM card feature connector J7/J8/J9/10 * 1 MCBL202A Main cooling fans J11 * 1 MCBL319A J34, System Board J12 * 1 MCBL210A Intruder Switch J14 * 1 MCBL318A J38, System Board J16, J17

(MSMT498) J18/J19 + 1 P1/P2 300 Watt Power Supply J20 * 2 MCBL206A CD-ROM and floppy disk drive J21, 22, J24, J25 * RAID 2 MCBL050A RAID section J14, J16, J18, J19 J21, 22 (MSMT499) + JBOD 1 MCBL049A 300 Watt Power Supply J23 * 2 MCBL085A Auxiliary drives J24 + 2 P7 300 Watt Power Supply J25 + 2 P3 300 Watt Power Supply

PS Conf. Side Cable To

- 1 n/a 550 Watt power supplies

J1: MCBL203A, LCD Board System Status Pinout

Signal Pin Signal Pin Signal

1 Ground 13 Data 6 24 VCC Fuse 2 +5V Fuse 14 Data 7 25 CHBAD 3 Ground 15 VCC Fuse 26 CHGOOD 4 DISPRS 16 Menu 27 PSBAD 5 DISPRW 17 Escape 28 PSGREEN 6 DISPENB 18 Down 29 FANBAD 7 Data 0 19 Enter 30 FANGREEN 8 Data 1 20 Up 31 Ground 9 Data 2 21 System/RAID 32 Bell 10 Data 3 22 No Connect 33 No Connect 11 Data 4 23 Ground 34 No Connect 12 Data 5

J4: MCBL064A System Board Power Cable Pinout

Signal

1 No connect 2 Power On

J5/J6: MCBL078A, ISM Card Feature Connector Pinout

Signal Pin Signal Pin Signal

1 No connect 8 No connect 15 No connect 2 No connect 9 No connect 16 Ground 3 Ground 10 + 3.3V 17 Intruder Alert 4 Key 11 SYS RESET 18 No connect 5 PWROFF# 12 Ground 19 Key 6 No connect 13 Ground 20 Ground 7 LPOK 14 Key

J7/8/9/J10: MCBL202A, Main Cooling Fans Pinout

Signal Wire Color Pin Signal Wire Color

1 +12V Red 3 Ground Black 2 Fan Tach Yellow 4 Fan Present Black

J11: MCBL319A, System Board Power Cable Pinout

Signal Pin Signal Pin Signal

1 +3.3V 8 Power Good 15 Ground 2 +3.3V 9 No connect 16 Ground 3 Ground 10 + 12V 17 Ground 4 +5V 11 +3.3V 18 -5V 5 Ground 12 -12V 19 +5V 6 +5V 13 Ground 20 +5V 7 Ground 14 Remote On

J12: MCBL210A, Intruder Switch Pinout

Signal

1 Intruder Alert (chassis open) 2 Ground

J14: MCBL318A, System Board Power Cable Pinout

Signal Pin Signal Pin Signal

1 +3.3V 9 Ground 17 Ground 2 +3.3V 10 5V AO 18 +5V 3 Ground 11 +5V 19 Ground 4 Ground 12 +3.3V 20 +5V 5 +5V 13 Ground 21 Ground 6 +5V 14 Ground 22 +5V 7 Ground 15 Ground 8 +5V 16 +5V

J16, J17: 550 Watt Power Supplies Pinout

Refer to “550 Watt Power Supplies (MPWS139)” for the pinout of these connectors. See the table on page 62.

J20: MCBL206A, CD-ROM Drive and Floppy Disk Drive Pinout

Signal Wire Color Pin Signal Wire Color

1 +12V Yellow 3 Ground Black 2 Ground Black 4 VCC, +5v Red

J21/J22/J24/J25: MCBL050A, RAID Power and MCBL085A, Auxiliary Drive Pinout

1 +12V Yellow 3 Ground Black 2 Ground Black 4 VCC, +5v Red

Signal Wire Color Pin Signal Wire Color

AC Section (MESAN590)

The following diagram shows the AC wiring for systems with dual 550 Watt power supplies.

Brown - Line

Green - Ground

Blue - Neutral

MSMT332

Side 2

Brown - Line

Green -Ground

Blue - Neutral

Ground Lug

AC Section

Blue Brow

Terminal Block

RAID Disk Drive Section (MESAN52)

Assembly Layout

CH 0

Connector

SAF-TE Card

CH 1

Connector

JP3 - SCSI

ID Jumper

Channel

Module

JP2 - Delay

Jumper

J19

J18

J16

J14

LED Board (MPCBD27)

Cable Routing and Pinouts

MESAN52 RAID Disk Drive Section Cable Routing

From MESAN52

J2, LED Board MCBL229A LCD Board, J5 J3, LED Board MCBL230A LCD Board, J6 J14, J16, Backplane MCBL145A (or) MPWS175 P4 and P5 (Non-RAID only)

J18, J19, Backplane MCBL145A (or) MPWS175 P2 and P3 (Non-RAID only)

CH0, Backplane MCBL246A RAID or UW SCSI Controller, CH 0 CH1, Backplane MCBL246A RAID or UW SCSI Controller, CH 1

J2: MCBL229A, RAID LCD Cable Pinout

1 Ground 8 Data 1 15 No Connect 2 No Connect 9 Data 2 16 Menu 3 Ground 10 Data 3 17 Escape 4 DISPRS 11 Data 4 18 Down 5 DISPRW 12 Data 5 19 Enter 6 DISPENB 13 Data 6 20 Up 7 Data 0 14 Data 7

Signal Pin Signal Pin Signal

Cable To

MCBL050A Power Distribution Board, J26 and J27

(RAID only)

MCBL050A Power Distribution Board, J23 and J24

(RAID only)

J3: MCBL230A, RAID LED Cable Pinout

1 Ground 6 RPS green (good) 2 RAID present 7 RFAN green (good) 3 Channel bad 8 RFAN green (good) 4 Channel good 9 Ground 5 RPS bad 10 RAID bell (alarm)

Signal Pin Signal

J14, J16, J18, J19: Disk Drive Power Pinout

1 +12V Yellow 3 Ground Black 2 Ground Black 4 VCC, +5v Red

CH0 and CH1: MCBL246A, Disk Data Cable Pinout

1-16 Ground 43 SCSI Data Bit 3 56 Fault Data 17 Term Power 44 SCSI Data Bit 4 57 Busy 18 Term Power 45 SCSI Data Bit 5 58 Acknowledge 19 No Connect 46 SCSI Data Bit 6 59 Reset 20-34 Ground 47 SCSI Data Bit 7 60 Message 35 SCSI Data Bit 12 48 SCSI Data Parity 0 61 Select 36 SCSI Data Bit 13 49 SWAP (Ground) 62 Carrier Detect 37 SCSI Data Bit 14 50 Shell OK (Ground) 63 Request 38 SCSI Data Bit 15 51 Term Power 64 I/O 39 SCSI Data Parity 1 52 Term Power 65 SCSI Data Bit 8 40 SCSI Data Bit 0 53 No Connect 66 SCSI Data Bit 9 41 SCSI Data Bit 1 54 Fault Clock (Ground) 67 SCSI Data Bit 10 42 SCSI Data Bit 2 55 Attention 68 SCSI Data Bit 11

Signal Wire Color Pin Signal Wire Color

Signal Pin Signal Pin Signal

Channel Module

The disk section uses the dual-channel module (MSMT456) to enable two channels for the RAID disk section.

SAF-TE Card

The SAF-TE card (MSMT460) is the primary component that makes the disk section a RAID-capable subsystem.

Jumper Settings

NOTE RAID systems, which use the AMI RAID controller, do not use any jumpers on these headers.

The delay and SCSI ID setttings are controlled by the RAID controller.

Power Supplies

Two power supply options are available, as follows:

Single 300 Watt power supply (MPWS175)

Dual 550 Watt power supplies (MPWS139)

300 Watt Power Supply (MPWS175)

MPWS175 is a 300 Watt autoranging supply, that switches between 90-132 VAC or 180-264 VAC, depending on the location. The input frequency is 47-63 Hz, single phase. At full load, the power supply has a minimum efficiency of 65 percent.

The power supply is enclosed in a case that includes a fan to provide additional airflow

through the system. Refer to “Cooling Fans and Temperature Sensors” later in this chapter for more information.

DC Output Specifications

The following table details the DC output specifications for the power supply.

Nominal Output Voltages

Continuous Load (Maximum.)

Continuous Load (Minimum.)

1, 5

Noise and Ripple (PARD) (DC to 30 MHz)

Initial Setting Tolerance

Regulation Line/Load

2, 5

Overshoot (Turn on/off)

Outputs

Unit

1 2 3 4 5

+3.3

3, 4

+5.1

3, 4

+12.0

−

12.0

−

5.0

0.5 0.5 ADC

VDC

06000ADC 50 50 100 250 100 mVp-p

Max

± ±

3% 3%

± ±

3% 3%

10%

Max Max

5% 5% 10% 10% 10% Max

The footnotes in the previous table are defined as follows.

1. The power supply meets or exceeds these specifications. For the noted specifications,

the maximum values describe the smallest acceptable maximum load, and the minimum values describe the largest acceptable minimum load.

2. These outputs are measured at the user end of an unloaded peripheral cable.

3. +3.3 V and +5.0 V will never draw over 250 Watts combined.

4. Any combination of +3.3 V, +5.0 V, and +12 V do not exceed their maximum or 300

Watts of total power.

5. The sum of Initial Setting Tolerance and Line/Load Regulation do not exceed 3% for the

+3.3 V and +5.0 V outputs, 5% for the +12 V output, and 10% for the negative output voltages.

550 Watt Power Supplies (MPWS139)

The system is equipped with two 550 Watt power supplies (MPWS139). These are hotswappable and offer 1+1 redundancy. Each power supply has six outputs and is autoranging between 90-132 VAC and 180-264 VAC. The input frequency range for each power supply is 47-63 Hz, single phase.

DC Output Specifications

The power supply has the following DC output specifications.

Nominal Output Voltages

1, 3

Continuous Load (Maximum.) Continuous Load (Minimum.) Noise and Ripple (PARD)

(DC to 30 MHz) Initial Setting Tolerance Regulation Line/Load

2, 3

Overshoot (Turn on/off)

The footnotes in the previous table are defined as follows.

1. The power supply meets or exceeds these specifications.

Outputs

4, 5

5 6

+3.3 +5.1 +5.0 +12.0 -12.0 -5.0 VDC

45 85 1 12 1 1 ADC

0.0 3.5 0.0 1.0 0.0 0.0 ADC 50 50 50 100 250 100 mVp-p

3% 3% 3% 5% 10% 10% Max 3% 3% 3% 5% 10% 10% Max 5% 5% 5% 10% 10% 10& Max

Unit

Max

2. These outputs are measured differentially at the Elcon connector terminated with 0.1 µf

ceramic capacitor.

3. The sum of the Initial Setting Tolerance and Line/Load Regulation does not exceed 3%

for the +3.3 V, +5.1 V, and +5.0 V outputs, 5% for the +12.0 V output, and 10% for the negative output voltages.

4. Any combination of +3.3 V or +5.1 V do not exceed their maximum power or 450 Watts

of total power.

5. Any combination of +3.3 V, +5.1 V, or +12 V do not exceed their maximum power or

550 Watts of total power.

6. This output is always on.

Operating Characteristics

The power supplies operate in the following manner.

Over-Current Protection is provided on +3.3 VDC and +5.0 VDC outputs. The OverCurrent Protection disables the DC outputs (except the +5.0 V) and keeps them disabled until AC is cycled.

Over-Voltage Protection is provided on +3.3 VDC and +5.0 VDC. The Over-Voltage Protection disables the DC outputs (except the +5.0 V) when the output reaches 5.5-6.8 VDC for +5.0 V DC or 3.7-4.4 VDC for +3.3 VDC. The DC outputs remain disabled until AC is cycled.

Once the +5.0 V output is turned on by the power supply, it reaches its nominal output (see the table above) within 750 ms at all line and load conditions.

The current is equally shared (within +10%) by the two power supplies at maximum load. If one power supply fails, the remaining power supply takes over. +3.3 V, +5.0 V, +12 V, -5 V, and -12V power outputs have series-connected blocking diodes to prevent an output fault in one power supply from pulling down the outputs of the other power supply.

If one of the power supplies fails, the DC LED on the back of the power supply goes out, and the power supply status LED changes from green to amber. Look at the back of the base unit to see which power supply failed.

If a power supply is not supplying all of its DC voltage output levels correctly, an audible alarm sounds.

Connector Pinout

The power supply has two connectors that attach to J16 and J17 on the power distribution board. Both connectors have the same pinout, as follows.

Name Pin Name Pin Signal

1 AC Line 14 Ground 26 Ground 2 AC Ground 15 +3.3 V 27 Remote ON/OFF 3 AC Neutral 16 Current Share +3.3 V 28 Ground 4 No connect 17 Current Share +5.1 V 29 +12 V 5 No connect 18 Current Share +12 V 30 +12 V 6 No connect 19 Current Share Return 31 +12 V 7 +3.3 V 20 AC OK 32 +12 V 8 Ground 21 DC OK 33 -12 V 9 +3.3 V 22 Ground 34 Ground 10 +3.3 V 23 -5 V 35 Ground 11 Ground 24 Ground 36 +5.1 V 12 Fan 1 Tach 25 +5.0 V (always on) 37 +5.1 V 13 Fan 2 Tach

NOTE The AC OK signal is a TTL-compatible signal. It monotonically (without wavering) transitions

to a high level to indicate that the AC input power is within 90-132 VAC or 180-264 VAC. The signal provides the 3 mA sink/source current as well as any current required for the LEDs. Provided that there is an AC input, this signal must be available to report whether or not the outputs are functional. Overshoot should be kept to less than 1 V above a maximum steadystate high-level output of 5 V. Undershoot should be kept to less than -1 V below a minimum steady-state low-level output of 0 V.

NOTE The DC OK signal is a TTL-compatible signal, and its purpose is to initiate an orderly start-up

procedure under normal operating conditions. During power up, this signal should remain low (less than 0.8 V) for at least 100 ms after all of the +5.1 V, +3.3 V, and +12 V outputs have reached their minimum sense levels of 4.75 V, 3.14 V and 11.4 V, respectively. The signal then monotonically (without wavering) transitions to a high level (greater than 2.4 V) to indicate that the power source is stable. The signal provides the 3 mA sink/source current as well as any current required for the LEDs. Overshoot should be kept to less than 1 V above a maximum steady-state high-level output of 5 V. Undershoot should be kept to less than -1 V below a minimum steady-state low-level output of 0 V.

Cooling Fans and Temperature Sensors

The server uses four main fans (CFAN123) to provide air flow through the system. The power supplies (MPWS175 and MPWS139) also each contain fans. The system fans are RPM-reporting so their status is available on the LCD screen. The fans for the 550 Watt power supply are enclosed in the power supply housing and are also RPM-reporting. The fan for the 300 Watt power supply is enclosed in the power supply housing.

There is an ambient temperature sensor located on the LCD board.

5System Board

This chapter illustrates major component locations on the MSMT497 (Revision A) system board. It provides information about slots and sockets, cable routing, pinouts, jumpers, external ports, and memory subsystem details and addresses.