Dell PowerEdge 6850 Manual de substituição da placa de sistema
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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
1 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.
2 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.
3 Lift off the heat sink.
Installing the North Bridge Heat Sink on the Replacement System Board
1 Using a clean lint-free cloth, remove the existing thermal grease from the north bridge heat
sink.
2 Apply thermal grease evenly to the top of the north bridge chip.
March 2005