
7.
Reverse this procedure to install the card.
8.
Go to “Completing the FRU replacement” on page 131.
Replacing the heat sink
CAUTION:
The heat sink and microprocessor might be very hot. Turn off the computer and
wait three to five minutes to let the computer cool before opening the computer
cover.
Attention
Do not open your computer or attempt any repair before reading and understanding the
“Important safety information” in the
ThinkStation Safety and Warranty Guide
that came
with your computer. To obtain a copy of the
ThinkStation Safety and Warranty Guide
, go to:
http://www.lenovo.com/support
This section provides instructions on how to replace and install the heat sink.
To replace the heat sink:
1.
Open the computer cover. See “Removing the cover” on page 96.
2.
Lay the computer on its side for easier access to the heat sink.
3.
Remove the heat sink and fan assembly cables from the system board. Note
the cable location. See “Locating parts on the system board” on page 137.
4.
Follow this sequence to remove the heat sink from the system board:
a.
Partially remove screw
1
, then fully remove screw
2
, and fully remove
screw
1
.
b.
Partially remove screw
3
, then fully remove screw
4
, and fully remove
screw
3
.
Chapter 11. Replacing FRUs - Ibiza Computers
147
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