Lenovo IdeaCentre Q200 - Manual (Page 36)

Hardware Maintenance Manual
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8. Lift the failing heat sink and fan assembly off the system board.
9. 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).
10. Install the heat sink and fan assembly on the heat sink retention
bracket.
11. Connect the heat sink and fan assembly cable to the system board.
Refer to the “Identifying parts on the system board”.
12. Install the system board into the chassis and allign the screw holes
with those in the chassis.Insert and tighten the screws that secure the
system board. Refer to the “Replacing the system board”.
13. Reconnect the disconnected cables to the system board.
14. Refer to the” Completing the installation”.