8.
Install the new power supply assembly into the chassis so that the screw holes
in the new power supply assembly align with those in the chassis.
9.
Install and tighten the four screws at the rear of the chassis to secure the
power supply assembly.
Note:
Use only the screws provided by Lenovo.
10.
Reconnect all the power supply assembly cables to the drives and the system
board.
11.
Go to “Completing the FRU replacement” on page 155.
Replacing the heat sink and fan assembly
Attention
Do not open your computer or attempt any repair before reading and understanding the
“Important safety information” in the
ThinkCentre Safety and Warranty Guide
that came with
your computer. To obtain a copy of the
ThinkCentre Safety and Warranty Guide
, go to:
http://www.lenovo.com/support
This section provides instructions on how to replace the heat sink and fan
assembly.
CAUTION:
The heat sink and fan assembly might be very hot. Turn off the computer and
wait three to five minutes to let the computer cool before opening the computer
cover.
This section provides instructions on how to replace the heat sink and fan
assembly.
To replace the heat sink and fan assembly:
1.
Open the computer cover. See “Opening the computer cover” on page 126.
2.
Pivot the drive bay assembly upward to gain access to the heat sink and fan
assembly. See “Accessing the system board components and drives” on page
127.
3.
Locate the heat sink and fan assembly and disconnect the heat sink and fan
assembly cable from the microprocessor fan connector on the system board. See
“Locating parts on the system board” on page 129.
142
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