Lenovo H420 Desktop User Manual
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Hardware Replacement Guide
7. 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).
8. Install the heatsink and fan assembly onto the heatsink retention bracket.
9. Reconnect the disconnected cables to the system board.
10. Refer to “Completing the installation”.
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