Dell Dimension 9150/XPS 400 - Manual (Page 58)

Removing and Installing Parts: Dell Dimension 9150 Service Manual
file:///T|/htdocs/systems/dim9150/en/sm/parts.htm[10/31/2012 7:59:36 AM]
b. Set the retention mechanism aside in a secure location.
4. Use a long Phillips screwdriver to loosen the two captive screws on each side of the heat-sink assembly.
CAUTION: Despite having a plastic shield, the heat-sink assembly may be very hot during normal
operation. Be sure that it has had sufficient time to cool before you touch it.
5. Rotate the heat-sink assembly toward the rear of the computer, and remove it from the computer.
1 heat sink and fan shroud assembly
2 captive screw housing (2)
NOTICE: If you are installing a processor upgrade kit from Dell, discard the original heat sink. If you are not installing
a processor upgrade kit from Dell, reuse the original heat sink when you install your new processor.