Acer Altos G530 Series User Manual page 72

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2 Disconnect the CPU fan cable from its mainboard connector.
3 Loosen the four screws that hold the HSF assembly to the
mainboard (1).
4 Pull the HSF assembly away from the CPU (2).
5 Place the HSF assembly upside down on a flat surface.
Note: Wipe off the thermal grease from both the HSF assembly
and CPU using an alcohol pad.
3 System upgrade