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Important
To avoid damaging the microprocessor contacts, do not tilt the microprocessor when installing it into
the socket.
11. Lower the microprocessor straight down into the system board socket of the system board.
12. To secure the microprocessor in the socket, close the microprocessor retainer and lock it into position
with the small handle.
13. Use the thermal grease syringe to place five drops of grease on the top of the microprocessor. Each drop
of grease should be 0.03ml (3 tick marks on the grease syringe).
14. Install the heat sink and fan assembly on the system board.
15. Connect the heat sink and fan assembly cable to the system board. See the system board illustration
for your machine type at "System board connectors" on page 66.
16. Go to "Completing the FRU replacement" on page 84.
Replacing a memory module
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 install or replace a memory module.
.
Chapter 8
Replacing FRUs (Type 0841)
77
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