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Dell Precision 650: инструкция

Раздел: Бытовая, кухонная техника, электроника и оборудование

Тип: Компьютер

Инструкция к Компьютеру Dell Precision 650

DellPrecision™Workstation650andDellPrecisionWorkstation450

Service Manual

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

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

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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

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Back to Contents Page

Battery

DellPrecision™Workstation650andDellPrecisionWorkstation450ServiceManual

A coin-cell battery maintains computer configuration, date, and time information. The battery can last several years.

The battery may need replacing if you have repeatedly reset the time and date information after turning on the computer or if one of the following messages

appears:

Time-of-day not set - please run SETUP program

Invalid configuration information -

please run SETUP program

Strike the F1 key to continue,

F2 to run the setup utility

To determine whether you need to replace the battery, reenter the time and date in system setup and exit the program to save the information. Turn off your

computer and disconnect it from the electrical outlet for a few hours; then reconnect the computer, turn it on, and enter system setup. If the date and time are

not correct in system setup, replace the battery.

You can operate your computer without a battery; however, without a battery, the configuration information is erased if the computer is turned off or

unplugged from the electrical outlet. In this case, you must enter system setup and reset the configuration options.

To replace the battery:

1. Locate the battery socket. For the Dell Precision 450 computer, see "System Board Components" or for the Dell Precision 650 computer, see "System

Board Components" or see the system board label inside your computer.

2. Remove the battery by carefully prying it out of its socket with your fingers or with a blunt, nonconducting object such as a plastic screwdriver.

3. Insert the new battery into the socket with the side labeled "+" facing up, and snap the battery into place.

4. Close the computer cover, and plug your computer and devices into electrical outlets.

5. Enter system setup and restore the settings.

6. Properly dispose of the old battery. For more information see your System Information Guide.

Back to Contents Page

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CAUTION: Before you begin this procedure, follow the safety instructions in the System Information Guide.

CAUTION: A new battery can explode if it is incorrectly installed. Replace the battery only with the same or equivalent type recommended by the

manufacturer. Discard used batteries according to the manufacturer's instructions.

NOTE: If you have not already done so, make a copy of your configuration information, found in system setup.

NOTICE: If you pry the battery out of its socket with a blunt object, be careful not to touch the system board with the object. Ensure that the object is

inserted between the battery and the socket before you attempt to pry out the battery. Otherwise, you may damage the system board by prying off

the socket or by breaking circuit traces on the system board.

NOTICE: To connect a network cable, first plug the cable into the network wall jack and then plug it into the computer.