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Replacing The Microprocessor - Lenovo ThinkCentre M81 Hardware Maintenance Manual

Hardware maintenance manual
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10. Connect the heat sink and fan assembly cable to the microprocessor fan connector on the system
board. See "Locating parts on the system board" on page 77.
11. To complete the installation or replacement, go to "Completing the parts replacement" on page 113.

Replacing the microprocessor

Attention:
Do not open your computer or attempt any repair before reading and understanding the "Important safety information"
in the ThinkCentre User Guide. To obtain a copy of the ThinkCentre User Guide, go to:
http://www.lenovo.com/ThinkCentreUserGuides
This section provides instructions on how to replace the microprocessor.
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 removing the computer cover.
To replace the microprocessor, do the following:
1. Remove all media from the drives and turn off all attached devices and the computer. Then, disconnect
all power cords from electrical outlets and disconnect all cables that are connected to the computer.
2. Remove the computer cover. See "Removing the computer cover" on page 79.
3. Lay the computer on its side for easier access to the system board.
4. Locate the system board and disconnect all cables connected to the system board. See "Locating
parts on the system board" on page 77.
5. Remove the heat sink and fan assembly. See "Replacing the heat sink and fan assembly" on page 95.
Note: Place the heat sink and fan assembly on its side so that the thermal grease on the bottom of it
does not get in contact with anything.
Chapter 8
.
Replacing FRUs (Machine Types: 0268, 1730, 1943, 4166, 4169, 5030, 5048, 5069, and 7517)
97

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