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Dell OptiPlex G1 Service Manual

Summary

This service manual provides detailed instructions for removing and replacing components in Dell OptiPlex GX1 Small-Form-Factor systems. It covers system board components, power supply, riser board, expansion cards, DIMMs, microprocessor with heat sink assembly, chassis intrusion switch, system battery, and various drive types. The manual includes precautionary measures, recommended tools, and step-by-step procedures for hardware maintenance. Target users are certified service technicians and IT support professionals responsible for repairing and maintaining Dell desktop computer systems.

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Contents: Dell Opti Plex GX1 Small-Form-Factor Systems Service Manual

Dell™ Opti Plex™ GX1 Small-Form-Factor Systems Service Manual Removing and Replacing Parts

Notes, Notices, and Cautions

Throughout this guide, blocks of text may be accompanied by an icon and printed in bold type or in italic type. These blocks are notes, notices, and cautions, and they are used as follows:

NOTE: A NOTE indicates important information that helps you make better use of your system.

NOTICE: A NOTICE indicates either potential damage to hardware or loss of data and tells you how to avoid the problem.

CAUTION: A CAUTION indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury.

Information in this document is subject to change without notice. © 1999 Dell Computer Corporation. All rights reserved.

Reproduction in any manner whatsoever without the written permission of Dell Computer Corporation is strictly forbidden.

Trademarks used in this text: Dell, Opti Plex, and the DELL logo are trademarks of Dell Computer Corporation; Microsoft, MS- DOS, and Windows NT are registered trademarks of Microsoft Corporation.

Other trademarks and trade names may be used in this document to refer to either the entities claiming the marks and names or their products. Dell Computer Corporation disclaims any proprietary interest in trademarks and trade names other than its own.

Initial release: Jun 1999

file:///C|/infodev/2013/e Doc/Op GX1/SM/index.htm[2/21/2013 11:45:27 AM]

Page Summary Contents For Dell OptiPlex G1 Service Manual

Page 1 Contents: Dell Opti Plex GX1 Small-Form-Factor Systems Service Manual Dell™ Opti Plex™ GX1 Small-Form-Factor Systems Service Manual Removing and Replacing Parts Notes, Notices, and Cautions Throughout...
Page 2 Removing and Replacing Parts: Dell Opti Plex GX1 Systems Service Manual Back to Contents Page Removing and Replacing Parts: Dell™ Opti Plex™ GX1 Small- Form-Factor Systems Service Manual Overview Syst...
Page 3 Removing and Replacing Parts: Dell Opti Plex GX1 Systems Service Manual Precautionary Measures Before you perform any procedures in this manual, take a few moments to read the following caution for yo...
Page 4 Removing and Replacing Parts: Dell Opti Plex GX1 Systems Service Manual Figure 2 shows the chassis with the cover removed. Figure 2. Inside the Chassis CD-ROM drive interface cable Externally accessib...
Page 5 Removing and Replacing Parts: Dell Opti Plex GX1 Systems Service Manual To remove the computer cover, perform the following steps: 1. Be sure the padlock ring is pushed into the cover. 2. Press in on ...
Page 6 Removing and Replacing Parts: Dell Opti Plex GX1 Systems Service Manual To replace the computer cover, perform the following steps: 1. Face the front of the computer and hold the cover at a slight ang...
Page 7 Removing and Replacing Parts: Dell Opti Plex GX1 Systems Service Manual 1. Lay the computer cover on a flat work surface, with the inside of the top cover facing up. 2. To remove the 3.5-inch diskette...
Page 8 Removing and Replacing Parts: Dell Opti Plex GX1 Systems Service Manual When you install the replacement control panel, be sure to put the right side of the control panel behind the mounting tab. Chas...
Page 9 Removing and Replacing Parts: Dell Opti Plex GX1 Systems Service Manual NOTE: In all of the following procedures, left and right refer to your left and right as you face the front of the computer. Fig...
Page 10 Removing and Replacing Parts: Dell Opti Plex GX1 Systems Service Manual Figure 9). Hard-Disk Drive Figure 10. Hard-Disk Drive/Bracket Removal Drive bracket Release tabs (2) CAUTION: To avoid the possi...
Page 11 Removing and Replacing Parts: Dell Opti Plex GX1 Systems Service Manual Drive Drive bracket Screws (4) Figure 12. Hard-Disk Drive/Bracket Replacement Tabs on bottom of drive bracket Hooks on chassis f...
Page 12 Removing and Replacing Parts: Dell Opti Plex GX1 Systems Service Manual Check the documentation for the drive to verify that it is configured for your computer system. 2. If not already done, remove t...
Page 13 Removing and Replacing Parts: Dell Opti Plex GX1 Systems Service Manual To locate the IDE1 connector on the system board, see "System Board Components." 10. Replace the drive shelf and conne...
Page 14 Removing and Replacing Parts: Dell Opti Plex GX1 Systems Service Manual To remove the 3.5-inch diskette drive from the drive shelf, perform the following steps. NOTE: This procedure assumes that you h...
Page 15 Removing and Replacing Parts: Dell Opti Plex GX1 Systems Service Manual 2. Slide the CD-ROM drive assembly forward and up and out of the chassis. To replace a CD-ROM drive, perform the following steps...
Page 16 Removing and Replacing Parts: Dell Opti Plex GX1 Systems Service Manual 4. Update your system configuration information. Set the Drive 1 option under Drives: Primary to Auto. See the online System Use...
Page 17 Removing and Replacing Parts: Dell Opti Plex GX1 Systems Service Manual Figure 19. Expansion-Card Cage Removal Securing lever Expansion-card cage Tabs (2) Hooks (2) To remove the expansion-card cage f...
Page 18 Removing and Replacing Parts: Dell Opti Plex GX1 Systems Service Manual PCI expansion slot 2 (PCI2) The chassis has a PCI riser board that has two PCI expansion-card connectors (see Figure 20). To rem...
Page 19 Removing and Replacing Parts: Dell Opti Plex GX1 Systems Service Manual DIMM sockets (3) 3.3-V power connector Battery socket Chassis intrusion switch connector Control panel connector Main power inpu...
Page 20 Removing and Replacing Parts: Dell Opti Plex GX1 Systems Service Manual CD-in connector Microprocessor fan connector Serial port 2 connector USB connectors (2) Mouse/keyboard connector (stacked) Paral...
Page 21 Removing and Replacing Parts: Dell Opti Plex GX1 Systems Service Manual jumpered unjumpered Jumper pins are small groups of two or more pins on a circuit board. Plastic jumpers containing a wire fit d...
Page 22 Removing and Replacing Parts: Dell Opti Plex GX1 Systems Service Manual PANEL Control panel connector PARALLEL Parallel port connector, sometimes referred to as LPT1 PCIn PCI expansion-card connector ...
Page 23 Removing and Replacing Parts: Dell Opti Plex GX1 Systems Service Manual 4. Remove the screw on the mounting bracket of the card you want to remove. 5. Grasp the card by its outside corners, and ease i...
Page 24 Removing and Replacing Parts: Dell Opti Plex GX1 Systems Service Manual before installing any expansion cards To install an expansion card, perform the following steps: 1. Prepare the expansion card f...
Page 25 Removing and Replacing Parts: Dell Opti Plex GX1 Systems Service Manual to Not Detected. See the User's Guide for detailed information on the chassis intrusion detector. NOTE: If a setup password has ...
Page 26 Removing and Replacing Parts: Dell Opti Plex GX1 Systems Service Manual Microprocessor/Heat Sink Assembly Figure 28. Microprocessor/Heat Sink Assembly Removal Microprocessor fan Guide bracket assembly...
Page 27 Removing and Replacing Parts: Dell Opti Plex GX1 Systems Service Manual 3. Unplug the fan power connector on the system board 4. Gently pull out the guide-bracket assembly latch (see Figure 28), grasp...
Page 28 Removing and Replacing Parts: Dell Opti Plex GX1 Systems Service Manual CAUTION: There is a danger of the new battery exploding if it is incorrectly installed. Replace the battery only with the same o...
Page 29 Removing and Replacing Parts: Dell Opti Plex GX1 Systems Service Manual 8. Carefully lift the system board out of the chassis (be sure to lift evenly and not twist the system board). To replace a syst...

Manual Details

Brand Dell
Pages 29
File Size 614.33 KB
Published June 29, 2026
6 views

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Frequently Asked Questions

What steps must I take before opening the computer for repairs?

Turn off all peripherals, disconnect from AC power sources, wait 10-20 seconds, and wear a wrist grounding strap.

How do I prevent static damage while working inside?

Wear or touch an unpainted metal surface periodically to ground yourself and dissipate any static charge.

What are the key considerations when replacing the system battery?

Only use the same or equivalent manufacturer-recommended type, ensuring the new battery's "+" terminal faces up.

What must I do after installing a replacement system board?

Remove DIMMs, video memory module, and CPU/heat sink first. The final step is to slide the new board evenly into position without twisting.