Dell PowerEdge 6850 User Manual download pdf

www.dell.com | support.dell.com

About Cautions

CAUTION: A CAUTION indicates a potential for property damage, personal injury, or death.

System Board Replacement Procedure

Update

This document provides updated information for replacing the system board.

NOTE: See the latest version of the system’s documentation on support.dell.com for instructions on how

to remove and replace the system board.

Removing and Installing the North Bridge Heat Sink

CAUTION: Any installation that requires removal of the system cover is intended solely to be

performed by trained service technicians. See your Product Information Guide for complete information

about safety precautions, working inside the computer and protecting against electrostatic discharge.

When transferring components from the defective system board to the replacement system board,

ensure that you also transfer the north bridge heat sink. The north bridge heat sink is located

directly behind processor connectors 2 and 4.

Removing the North Bridge Heat Sink From the Defective System Board

Compress the two retention-clip tabs together to remove them from the retention-clip

securing slots, and then lift up the retention clip. See Figure 1.

If the heat sink has not separated from the north bridge chip, carefully rotate the heat sink in

a clockwise, then counterclockwise, direction until it releases from the chip. Do not pry the

heat sink off of the chip.

Lift off the heat sink.

Installing the North Bridge Heat Sink on the Replacement System Board

Using a clean lint-free cloth, remove the existing thermal grease from the north bridge heat

sink.

Apply thermal grease evenly to the top of the north bridge chip.

March 2005

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About Cautions 1

Summary of Contents

Page 1 - About Cautions

www.dell.com | support.dell.comAbout Cautions CAUTION: A CAUTION indicates a potential for property damage, personal injury, or death.System Board Re

Page 2

www.dell.com | support.dell.com3Install the north bridge heat sink:aOrient the heat sink so that its alignment key is toward the back of the system bo

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Dell PowerEdge 6850 User Manual

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