Dell Precision™ Workstation 650 and Dell Precision Workstation 450
Service Manual
Before You Begin
Recommended Tools
Precautionary Measures
Protecting Against Electrostatic Discharge
Opening the Computer Cover
Inside Your Computer — Dell Precision™ 650 Computer
Inside View of Your Computer
System Board Components
Inside Your Computer — Dell Precision™ 450 Computer
Inside View of Your Computer
System Board Components
Drives — Dell Precision™ 650 Computer
Overview
Hard Drive
Floppy Drive
CD/DVD Drive
Drive Door — Dell Precision™ 650 Computer
Removing the Drive Door
Replacing the Drive Door
Drives — Dell Precision™ 450 Computer
Overview
Hard Drive
Floppy Drive
CD/DVD Drive
Cards
Installing a Card
Removing a Card
Card Fan and Guide — Dell Precision 650 Computer
Removing the Card Fan and Guide
Replacing the Card Fan and Guide
The Card Fan Guide
Memory
Memory Installation Guidelines
Removing a Memory Module
Adding a Memory Module
Microprocessor Airflow Shroud — Dell Precision™ 650 Computer
Removing the Microprocessor Airflow Shroud
Installing the Microprocessor Airflow Shroud
Microprocessor Airflow Shroud — Dell Precision™ 450 Computer
Removing the Microprocessor Airflow Shroud
Installing the Microprocessor Airflow Shroud
Information in this document is subject to change without notice.
© 2002 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, the DELL logo, and Dell Precision are trademarks of Dell Computer Corporation; Microsoft and Windows 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.
Models: WML and WMF
October 2002 Rev. A00
Microprocessor
Installation Guidelines
Installing the Microprocessor
Removing the Microprocessor
VRM
Installing a VRM
Removing a VRM
Front Panel
Removing the Front Panel
Replacing the Front Panel
Chassis Intrusion Switch
Removing the Chassis Intrusion Switch
Replacing the Chassis Intrusion Switch
Control Panel
Control Panel Components
Removing the Control Panel
Replacing the Control Panel
I/O Panel
I/O Panel Components for the Dell Precision 650 Computer
I/O Panel Components for the Dell Precision 450 Computer
Removing the I/O Panel
Replacing the I/O Panel
Battery
Power Supply — Dell Precision™ 650 Computer
Removing the Power Supply
Replacing the Power Supply
Power Supply — Dell Precision™ 450 Computer
Removing the Power Supply
Replacing the Power Supply
System Board
Removing the System Board
Replacing the System Board
Closing the Computer Cover