Lenovo ThinkCentre Hardware Maintenance Manual page 104

11. Lower the microprocessor straight down into the system board socket of the
12. To secure the microprocessor in the socket, close the microprocessor retainer
13. Use the thermal grease syringe to place five drops of grease on the top of the
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
16. Go to "Completing the FRU replacement" on page 121.
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Hardware Maintenance Manual
system board.
and lock it into position with the small handle.
microprocessor. Each drop of grease should be 0.03ml (3 tick marks on the
grease syringe).
system board illustration for your machine type at "System board connectors"
on page 84.