Dell Inspiron One 2330 Owner's Manual page 70

Procedure
1 Disconnect the processor heat-sink fan cable from the
system-board connector.
2 Remove the screws that secure the processor heat-sink fan to the chassis.
3 Peel the portion of the aluminum foil that is adhered over the
processor heat-sink.
4 Lift the processor heat-sink fan off the chassis
1 aluminum foil
3 screws (3)
70
Processor Heat-Sink Fan
3
2
1
2 processor heat-sink fan
4 processor heat-sink fan cable
4