Dell Inspiron 580s (Late 2009) - Manual (Page 17)

8. Clean the thermal grease from the bottom of the heat sink.
9. Apply the new thermal grease to the top of the processor.
10. Replace the processor fan and heat sink assembly (see Replacing the Processor Fan and Heat Sink Assembly ).
11. Replace the computer cover (see Replacing the Computer Cover ).
12. Connect your computer and devices to electrical outlets, and turn them on.
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1 alignment post 2 processor cover 3 release lever
4 processor 5 processor cover notch
CAUTION: Ensure that you apply new thermal grease. New thermal grease is critical for ensuring adequate thermal bonding, which is a
requirement for optimal processor operation.
CAUTION: Ensure that the processor fan and heat sink assembly is correctly seated and secure.