88 REMOVAL AND REPLACEMENT
Processor Heatsink
NOTE The following illustrated heatsink is typical of what you might have in your workstation. Be aware
that different versions of the heatsinks exist, but the overall procedures listed are sufficient to assist you
in removing the heatsink.
Removing the Heatsink
To remove the heatsink:
1 Turn on the workstation and enter Computer Setup (F10) (page 34). Let the workstation run in this
mode for five minutes.
This action warms the thermal interface material between the heatsink and processor so that the
thermal bond loosens, and can more easily be broken.
NOTE Windows in idle state does not provide sufficient heat to warm the compound.
2 After warming the thermal interface, shut down the system, disconnect power from the system
(page 73), and remove the access panel (page 77).
3 Disconnect the heatsink wire 1 from the system board as shown in the two illustrations below.
4 Remove the captured heatsink screws 2 from the system board. Begin by slightly loosening any two
screws that diagonally opposite from one another, then slightly loosen the other two. Then finish
removing the screws.
5 Gently twist the heatsink unit to break the thermal grease binding.
2
1
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