Dell OptiPlex 7090 Tower Service Manual - Page 37

Installing the processor fan and 65 W heat-sink assembly, About this task

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CAUTION: For maximum cooling of the processor, do not touch the heat transfer areas on the heat sink. The oils in your skin can reduce the heat transfer capability of the thermal grease. 2. Remove the side cover. About this task The following images indicate the location of the processor fan and heat-sink and provide a visual representation of the removal procedure. Steps 1. Disconnect the processor fan cable from the connector on the system board. 2. Loosen the four captive screws that secure the processor fan and heat-sink assembly to the system board. 3. Lift the processor fan and heat-sink assembly off the system board. Installing the processor fan and 65 W heat-sink assembly Prerequisites NOTE: If either the processor or the heat sink is replaced, use the thermal grease that is provided in the kit to ensure that thermal conductivity is achieved. About this task The following image indicates the location of the processor fan and heat-sink assembly and provides a visual representation of the installation procedure. Removing and installing components 37

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CAUTION:
For maximum cooling of the processor, do not touch the heat transfer areas on the heat sink. The
oils in your skin can reduce the heat transfer capability of the thermal grease.
2.
Remove the
side cover
.
About this task
The following images indicate the location of the processor fan and heat-sink and provide a visual representation of the removal
procedure.
Steps
1.
Disconnect the processor fan cable from the connector on the system board.
2.
Loosen the four captive screws that secure the processor fan and heat-sink assembly to the system board.
3.
Lift the processor fan and heat-sink assembly off the system board.
Installing the processor fan and 65 W heat-sink assembly
Prerequisites
NOTE:
If either the processor or the heat sink is replaced, use the thermal grease that is provided in the kit to ensure that
thermal conductivity is achieved.
About this task
The following image indicates the location of the processor fan and heat-sink assembly and provides a visual representation of
the installation procedure.
Removing and installing components
37