Intergraph TDZ 2000 GT1 Reference

TDZ 2000 GT1
System Reference
October 1998 DHA029520

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.
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.
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.
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.
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

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.
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.

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.

Contents

Introduction...........................................................................................................................vii
Document Conventions...........................................................................................................vii
Additional System Information ............................................................................................... vii
Customer Support................................................................................................................... viii
Hardware and Software Support Services................................................................viii
World Wide Web..................................................................................................... viii
Intergraph Bulletin Board Service ........................................................................... viii
FAXLink.................................................................................................................... ix
Telephone .................................................................................................................. ix
More Support Options................................................................................................ ix
1 Accessing the System............................................................................................................1
Before You Begin ......................................................................................................................2
Tools ..........................................................................................................................................2
Protecting Against Electrostatic Discharge................................................................................2
Opening and Closing the Case....................................................................................................3
System Illustrations....................................................................................................................5
Accessing Components Behind the Power Supply.....................................................................7
iii
2 Servicing the System ............................................................................................................9
Before You Begin ....................................................................................................................10
Case Components.....................................................................................................................10
Peripheral Drives......................................................................................................................14
Floppy Disk Drive......................................................................................................14
CD-ROM Drive .........................................................................................................15
External Bay Disk Drives...........................................................................................16
Internal Bay Disk Drives............................................................................................17
External SCSI Terminator........................................................................................................19
Power Supply ...........................................................................................................................20
Bus Termination Card..............................................................................................................22
Processor Module.....................................................................................................................22
DIMMs.....................................................................................................................................23
System Board ...........................................................................................................................23
Expansion Cards.......................................................................................................................25
Fans..........................................................................................................................................25
Chassis Intrusion Alarm Switch ...............................................................................................27
Lithium (CMOS/Clock) Battery...............................................................................................28
LEDs, Light Pipe, and Power Switch.......................................................................................28
3 Upgrading the System........................................................................................................31
Before You Begin ....................................................................................................................32
Adding Memory.......................................................................................................................32
Adding a Processor ..................................................................................................................34
iv
Single-to-Dual Upgrade.............................................................................................34
Adding Expansion Cards..........................................................................................................35
Slot Locations ............................................................................................................35
Upgrading Graphics Cards.........................................................................................36
Installing Expansion Cards ........................................................................................38
Expansion Cards with PCI-to-PCI Bridges................................................................38
Assigning System Resources......................................................................................39
Adding Internal SCSI Drives....................................................................................................39
Device Locations .......................................................................................................40
Installing Devices in the Drive Bays..........................................................................41
Adding External SCSI Drives ..................................................................................................45
SCSI Cable Length Guidelines ..................................................................................46
SCSI Cable Quality Guidelines..................................................................................46
SCSI ID Guidelines....................................................................................................46
SCSI Termination Guidelines for External Devices...................................................47
Connecting the Device...............................................................................................47
Changing SCSI Host Adapter or Device Settings......................................................47
4 System Hardware Overview and Specifications..............................................................49
Hardware Overview .................................................................................................................50
Functional Diagram..................................................................................................................51
System Board Block Diagram..................................................................................................52
SCSI Cable Routing Diagram...................................................................................................53
System Configuration Summary...............................................................................................53
System Model Number.............................................................................................................55
System Board ...........................................................................................................................56
Specifications...........................................................................................................................56
Hardware Monitoring and Power Management........................................................................56
Intrusion Alert Switch................................................................................................58
Temperature Sensors..................................................................................................58
Optional Hardware...................................................................................................................58
5 System Board.......................................................................................................................59
Slots and Sockets......................................................................................................................60
Connectors and Components....................................................................................................61
Connectors................................................................................................................................62
Jumper Functions .....................................................................................................................65
Jumper Connectors...................................................................................................................66
CPU Frequency..........................................................................................................66
Host Bus Frequency...................................................................................................67
External Ports...........................................................................................................................68
Sound Processor.......................................................................................................................76
PCI to ISA Bus Interrupt Mapping...........................................................................................77
6 Peripherals...........................................................................................................................79
Peripheral Cables .....................................................................................................................80
Channel A Internal Wide Ultra2 SCSI Cable Connection Locations.........................80
Channel B Wide Ultra2 SCSI Cable Connection Locations ......................................81
Internal Narrow Ultra SCSI Cable Connection Locations .........................................81
Floppy Cable Connection Locations..........................................................................82
Peripheral Configuration..........................................................................................................82
40 GB 8MM Tape Drive............................................................................................82
Floppy Disk Drive......................................................................................................83
SCSI Disk Drives.......................................................................................................83
7 Power Supply and Cooling Fans........................................................................................85
Power Supply ...........................................................................................................................86
Cable Connectors .....................................................................................................................87
P1 Pinout....................................................................................................................87
P2 Pinout....................................................................................................................88
P3 and P5 through P9 Pinout.....................................................................................88
P4 Pinout....................................................................................................................88
P10 Pinout..................................................................................................................89
Cooling Fans ............................................................................................................................89
Index........................................................................................................................................91
v
vi

Introduction

TDZ 2000 GT1 System Reference provides information necessary to service and upgrade a TDZ 2000 GT1. For reference information on the TowerMate expansion base, see the TowerMate Expansion Base Installation and Use guide, included with the TowerMate.

Document Conventions

vii
Bold
Commands, words, or characters that you key in literally.
Italic Variable values that you supply, or cross-references.
Monospace
SMALL CAPS
Output displayed on the screen. Key names on the keyboard, such as D,
directories. You can type filenames and directory names in the dialog boxes or the command line in lowercase unless directed otherwise.
CTRL+D
Press a key while simultaneously pressing another key; for example, press
CTRL
and D simultaneously.

Additional System Information

A System Setup document is shipped with each system, and provides detailed information about the following:
Setting up the system hardware.
Configuring the operating system and associated system software.
Using the system.
Using the BIOS Setup program.
Reinstalling system software.
ALT
F3
or
. Names of files and
An online System Introduction is delivered with the system, and provides information about the following:
Intergraph Computer Systems support.
System hardware features.
Basic system controls.
Available hardware options.
viii

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 third­party 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 Servi ce

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, type 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:
ix
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.

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.
x
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 System

The TDZ 2000 GT1 features an extensible chassis architecture designed for ease of upgrades and expansion. The design provides easy access to AGP, PCI, and ISA card slots, memory, processors, and power supply.
This chapter lists hand tools and describes servicing restrictions, methods for avoiding electrostatic discharge, and how to remove and attach cover panels.
Before You Begin ......................................................................................................................2
Tools ..........................................................................................................................................2
Protecting Against Electrostatic Discharge................................................................................2
Opening and Closing the Case....................................................................................................3
System Illustrations....................................................................................................................5
Accessing Components Behind the Power Supply.....................................................................7
1
2

Before You Begin

NOTE
CAUTION
CAUTION
CAUTION

Tools

“Right side” and “left side” are as seen from the front of the unit.
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.
Use an antistatic wrist strap for all servicing procedures to avoid the possibility of electrostatic discharge.
Do not use the bottom portion of the face panel or the lip at the top, rear of the unit as a hand hold when moving the system. Equipment damage and personal injury can result.
You will need the following tools to service the system:
Antistatic wrist strap
Antistatic mat connected to an earth ground
Quarter-inch nutdriver
No. 1 and No. 2 Phillips screwdrivers
Small or medium flat-blade standard screwdriver
You do not need any tools to open the TDZ 2000 GT1 case.

Protecting Against Electrostatic Discharge

Electrostatic discharge (ESD) can damage sensitive components inside the unit. Take the following precautions when working with internal components:
Slide the antistatic wrist strap onto your wrist, and then attach the antistatic cable. Connect the cable to the a bare section of the chassis. Ensure that the metal conductor bead in the elastic sleeve of the antistatic strap contacts bare skin.
Unplug the unit from AC power before servicing any electronic component inside the chassis. Remember that the TDZ 2000 GT1 is always on when connected to AC power.
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.

Opening and Closing the Case

Opening the system for service or upgrades consists of two simple steps. Remove the top cover first, then remove the left side panel. No tools are needed. You need only remove the top cover and left side panel for most routine service procedures. See Chapter 2, “Servicing the System,” for additional details on removing and replacing case components.
The left side panel has a tab that closes an interlock switch inside the power supply. When you take off the left side panel, the safety interlock removes AC power to the system.
WARNING Do not attempt to defeat the safety interlock and run the system with the left side panel
removed. Personal injury and equipment damage can result.
3
CAUTION
NOTE
Before you open the case, shut down the system and turn off power to the system and external devices (including peripheral drives and display). Use caution to avoid injury when lifting the computer or removing covers and other hardware.
Removing the right side panel is necessary only for servicing internal bay disk drives, the plastic cowling on the right panel, or the face panel.
To open the case:
1. Ensure the system is shut down and that you have disconnected the system and any
attached external devices from AC power.
2. Grasp the lip on the top cover at the rear of the system and press up on the release. See
the following figure.
Press up on release located under lip
4
3. Keep pressing the release, slide the top cover back until it stops, remove it from the
chassis, and set it aside.
4. Grasp the cowling at the bottom of the left side panel and lift.
5. Slide the left side panel back until it stops, remove it from the chassis, and set it aside.
6. Repeat steps 4 and 5 to remove the right side panel, if necessary.
To close the case:
1. Place the side panel on the chassis so that all tabs on the rear of the chassis insert into
their slots.
NOTE When installing the left side panel, ensure that the security tab aligns with its corresponding
slot on the panel.
2. Push the side panel toward the front of the chassis, then push down to seat the panel.
3. Repeat steps 1 and 2 to install the remaining side panel, if necessary.
4. Place the top cover on the chassis so that all tabs are inserted into their slots.
5. Slide the top cover forward until it locks into place.
CAUTION After servicing or upgrading the system, always replace the covers that were removed. Do not
defeat the AC interlock. The covers 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.

System Illustrations

The front, left view below depicts the major parts of the system. Covers, cables, system board and expansion cards are not shown.
5
Intrus io n sensor
CD-ROM driv e
Power supply
Locking
plungers
Internal drive bays
Floppy disk drive
External bays
Power LED
Disk activity LED
Forward chassis fan
6
The back, left view below depicts the chassis with all major components removed.
Rear chassis fan
Power supply fan
Expansion card guides

Accessing Components Behind the Power Supply

To access the processors and DIMMs, disengage the locking plungers, and swing the hinged power supply out of the chassis. Or, you can remove the power supply entirely. However, you need not remove the power supply for most routine service or upgrade tasks. As needed, you may want to disconnect power supply cables to peripheral devices to swing the power supply out fully.
See Chapter 2, “Servicing the System,” for complete details on removing the power supply.
To access components behind the power supply:
1. Unplug the AC power cord from the rear of the unit.
2. Remove the top cover and left side panel. See the previous section for details.
3. Grasp both knurled plungers on the power supply, pull them toward each other, and then
swing the power supply toward you.
7
NOTE
Top plunger
Bottom plunger
Disconnect power cables to internal devices as needed to allow the power supply to swing out fully.
4. Access the exposed components as needed.
To stow the power supply:
1. Reconnect any power cables that you disconnected.
8
2. Grasp both knurled plungers, pull them toward each other, and then swing the power
supply away from you, back into the chassis.
CAUTION Carefully swing the power supply back into the chassis. Avoid pinching cables. Hold the
external SCSI cable against the chassis brace or rearrange cables slightly while swinging the power supply into the chassis.
3. Align the plunger holes and release both plungers.
4. Install the left side panel and top cover.
5. Plug the AC power cord into its connector on the rear of the chassis.

2 Servicing the System

This chapter describes how to replace the standard parts within a TDZ 2000 GT1 system. Obey all warning and caution labels while replacing parts.
Note that internal parts servicing procedures assume you have removed the left side panel from the system. After you have finished servicing the system, replace panels as described in Chapter 1, “Accessing the System.”
Before You Begin ....................................................................................................................10
Case Components.....................................................................................................................10
Peripheral Drives......................................................................................................................14
Floppy Disk Drive......................................................................................................14
CD-ROM Drive .........................................................................................................15
External Bay Disk Drives...........................................................................................16
Internal Bay Disk Drives............................................................................................17
External SCSI Terminator........................................................................................................19
Power Supply ...........................................................................................................................20
Bus Termination Card..............................................................................................................22
Processor Module.....................................................................................................................22
DIMMs.....................................................................................................................................23
System Board ...........................................................................................................................23
Expansion Cards.......................................................................................................................25
Fans..........................................................................................................................................25
Chassis Intrusion Alarm Switch ...............................................................................................27
Lithium (CMOS/Clock) Battery...............................................................................................28
LEDs, Light Pipe, and Power Switch.......................................................................................28
9
10

Before You Begin

WARNING Disconnect the system from AC power before servicing internal components! Failure to
remove AC power may result in equipment damage or personal injury.
NOTE
CAUTION
CAUTION
CAUTION
See Chapter 1, “Accessing the System,” for instructions on opening the system and protecting against electrostatic discharge.
Follow all warnings and cautions in servicing instructions. If you fail to follow documented, approved procedures, personal injury or damage to equipment can result.
Use an antistatic wrist strap for all servicing procedures to avoid the possibility of electrostatic discharge.
Do not overtighten screws and other fasteners to avoid damaging threads.

Case Components

Ordinarily you will not need to replace any of the external case components unless they are broken or cosmetically damaged. All case components are designed for durability, but the item that may require replacement first is the door and hinge assembly.
To replace the hinge or door, you must first remove the top cover. To replace the face panel, you must remove the top cover and the door.
To replace the top cover:
1. Remove the top cover. See Chapter 1, “Accessing the System,” for details.
2. Install the new cover.
To replace the door assembly:
1. Remove the top cover. See Chapter 1, “Accessing the System,” for details.
2. Lift the door and hold it at a 90-degree angle from the face panel.
3. Insert a small flat-blade screwdriver between the door and hinge, near one of the square
holes on the underside of the door.
11
Guide slot (1 per side)
Door
Locking tabs
Stop tabs
Hinge
Stop tabs
4. Pull the door toward you and pry the hinge and door apart until one side of the door
releases from its locking tab.
5. Repeat steps 3 and 4 for the other side of the door hinge.
6. Remove the door.
7. Do both of the following on the underside of the door:
Spread the release tabs on the large emblem and remove it
Squeeze the release tabs on the small emblem and remove it
8. Slide the hinge toward the front of the chassis until it stops.
9. Use a flat-blade screwdriver and pry each of the stop tabs on the hinge until the hinge
releases from the rails.
10. Orient the new hinge so that the locking tabs face down and insert the new hinge into the
track and push it forward until it stops.
11. Hold the hinge, align the beveled edges of the hinge with the guide slots on the door, and
push the door firmly onto the hinge until it snaps into place.
12. Press the two emblems onto the door until they snap into place.
13. Operate the door to test its movement.
14. Install the top cover. See Chapter 1, “Accessing the System,” for details.
To replace the hinge rails:
1. Remove the door. See the procedure above for details.
2. Slide the hinge toward the front of the chassis until it stops.
12
3. Use a flat-blade screwdriver and pry each of the stop tabs on the hinge until the hinge
releases from the rails.
Hinge rails
4. Remove the hinge from the rail.
5. Press a hinge rail toward the middle of the chassis until all four tabs release.
6. Lift the hinge rail off the chassis.
7. Orient the new hinge rail the same way as the one you removed, place the tabs in the slots,
and press outward until the rail snaps into place.
8. From the front of the chassis, slide the hinge into the rails.
To replace the face panel:
1. Remove the top cover and both side panels. See Chapter 1, “Accessing the System,” for
details.
2. Remove the door. See the “To replace the door assembly” procedure above for details.
3. Push the hinge back, away from the front of the chassis.
4. Use a flat-blade screwdriver to gently pry and release each of the plastic tabs on both
sides of the chassis. The tabs on the right side of the chassis are recessed. First release the bottom tabs, release the middle tabs, and then release the top tabs.
CAUTION Release the tabs with care. Do not apply more pressure than necessary.
13
Tab
(3 per side)
Light pipe guides
Standoff posts (4 per side)
Tab (3 per side)
Power switch
5. Pull the face panel away from the chassis slightly to ensure all tabs are released.
6. Grasp the left side of the face panel and pivot it left to expose the power switch and cable.
7. Spread the switch mount locking tabs, grasp the switch, and pull the switch out of its
mount.
8. Turn the face panel downward until the power switch button drops out.
9. Place the left side of the new face panel near the left, front of the chassis and orient the
switch so that the black and green wires are at the bottom.
10. Push the power switch into the mount until it snaps into place.
11. Place the power switch button into its hole and push firmly until it seats.
12. Align the new face panel with the tab notches and light pipe guides, and carefully push
the panel onto the chassis until all tabs engage.
13. Install the door, left and right side panels, and top cover.
To replace the left or right side plastic cowling:
1. Remove the top cover, then remove the side panel that has the plastic you want to replace.
See Chapter 1, “Accessing the System,” for details.
2. Place the side panel, with the cowling side down, on a flat, padded surface.
3. Remove the screw that secures the plastic to the side panel.
14
(
)
4. Grasp one side of the panel, press the release tabs, and lift the panel off the plastic.
5. Turn the side panel over and press the new plastic onto the panel until the release tabs
engage.
6. Turn the side panel over and install the screw.
7. Install the side panel onto the chassis.
8. Install the top cover. See Chapter 1, “Accessing the System,” for details.

Peripheral Drives

This section explains how to replace the floppy, CD-ROM, and internal and external bay disk drives. See Chapter 6, “Peripherals,” for details on drive configuration and cables.

Floppy Disk Drive

To replace the floppy disk drive:
1. Disconnect the power cable and data cable from the drive. Note the position of the red
stripe on the data cable.
2. Remove the two screws that secure the floppy drive to the chassis. See the following
figure.
CD-ROM mounting screws
2 each side
Floppy drive mount i ng scr ews
3. From inside the chassis, push the back of the floppy drive until the bezel clears the
chassis, and slide the device out.
4. Slide the new floppy drive into the chassis and align the mounting holes.
5. Install the two mounting screws.
6. Connect the data cable and the power cable.

CD-ROM Drive

To replace the CD-ROM drive:
1. Disconnect the power cable, data cable, and audio cable from the CD-ROM drive.
2. Remove the screws that secure the CD-ROM drive to the chassis. See the previous figure.
3. From inside the chassis, push the back of the CD-ROM until the bezel clears the chassis,
then slide the device out.
4. Remove the mounting guide from the right side of the CD-ROM. See the following
figure.
15
Mounting gui de
5. Note the jumper settings on the rear of the CD-ROM.
6. Set the SCSI ID jumper on the new drive to the same address as the old drive.
7. Install the mounting guide on the right side of the new CD-ROM.
8. Slide the new CD-ROM drive into the chassis and align the mounting holes.
9. Install the screws that secure the CD-ROM to the chassis.
10. Connect the audio cable, data cable, and power cable.
16

External Bay Disk Drives

If a removable disk module is installed in the external bay, see the vendor documentation for disk drive and module replacement instructions.
To replace an external bay disk drive:
1. Disconnect the SCSI cable and power cable from the disk drive.
2. Remove the two screws that secure the external bay disk drive tray to the chassis. See the
following figure.
External bay mounting screws
3. From inside the chassis, push the tray out of the external bay, grasp the front of the tray,
and then slide it out of the bay.
4. Remove the screws that secure the disk drive to the tray and remove the drive.
5. Do all of the following:
Note the SCSI ID jumper settings on the old drive
Set the SCSI ID on the new drive to the same ID as the old drive
Disable termination on the new drive
See Chapter 6, “Peripherals,” for details on these tasks.
6. Place the disk drive in the tray, align the mounting holes, and install the mounting screws
that secure the disk drive to the tray. See the following figure.
Mounting guide
Drive
17
7. Slide the tray assembly into the chassis and align the mounting holes.
8. Install the screws that secure the tray to the chassis.
9. Connect the SCSI cable and the power cable to the disk drive.

Internal Bay Disk Drives

To replace an internal bay disk drive:
1. Remove the right and left covers. See Chapter 1, “Accessing the System,” for details.
2. Disconnect the SCSI cable and power cable from the disk drive.
3. Remove the two screws that secure the drive bracket assembly to the left side of the
chassis.
4. Grasp the drive bracket assembly and remove the screw that secures the bracket to the
right side of the chassis.
5. Pull the drive bracket assembly out of the chassis.
6. Remove the four screws that secure the old drive to the bracket.
Access hole (2)
18
7. Do all of the following:
Note the SCSI ID jumper settings on the old drive
Set the SCSI ID on the new drive to the same ID as the old drive
Disable termination on the new drive
See Chapter 6, “Peripherals,” for details on these tasks.
8. Install the new drive on the bracket.
Alignment tabs
Rear mounting tab
Front m ounting tabs
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