Dell Inspiron 7790 AIO Inspiron 27-7790 Service Manual - Page 26

Installing the heat sink

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Steps 1. In reverse sequential order (as indicated on the heat sink), loosen the eight captive screws that secure the heat sink to the system board and the display-assembly base. 2. Lift the heat sink off the system board and display-assembly base. Installing the heat sink Prerequisites If you are replacing a component, remove the existing component before performing the installation procedure. NOTE: If either the system board or the heat sink is replaced, use the thermal pad/paste provided in the kit to ensure that thermal conductivity is achieved. About this task The following image indicates the location of the heat sink and provides a visual representation of the installation procedure. 26 Removing and installing components

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Steps
1.
In reverse sequential order (as indicated on the heat sink), loosen the eight captive screws that secure the heat sink to the system
board and the display-assembly base.
2.
Lift the heat sink off the system board and display-assembly base.
Installing the heat sink
Prerequisites
If you are replacing a component, remove the existing component before performing the installation procedure.
NOTE:
If either the system board or the heat sink is replaced, use the thermal pad/paste provided in the kit to ensure
that thermal conductivity is achieved.
About this task
The following image indicates the location of the heat sink and provides a visual representation of the installation procedure.
26
Removing and installing components