Dell XPS 17 9720 Service Manual - Page 29

Removing the heat sink (for computers shipped with discrete graphics card)

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Steps 1. Align the screw holes on the heat sink with the screw holes on the system board. 2. In sequential order (1 > 2 > 3 > 4), as indicated by the numbers on the heat sink, tighten the four captive screws to secure the heat sink to the system board. Next steps 1. Install the base cover. 2. Follow the procedure in After working inside your computer. Removing the heat sink (for computers shipped with discrete graphics card) Prerequisites 1. Follow the procedure in Before working inside your computer. 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. NOTE: The heat sink may become hot during normal operation. Allow sufficient time for the heat sink to cool before you touch it. 2. Remove the base cover. About this task The following image indicates the location of the heat sink and provides a visual representation of the removal procedure. Removing and installing components 29

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Steps
1.
Align the screw holes on the heat sink with the screw holes on the system board.
2.
In sequential order (1 > 2 > 3 > 4), as indicated by the numbers on the heat sink, tighten the four captive screws to secure
the heat sink to the system board.
Next steps
1.
Install the
base cover
.
2.
Follow the procedure in
After working inside your computer
.
Removing the heat sink (for computers shipped with discrete
graphics card)
Prerequisites
1.
Follow the procedure in
Before working inside your computer
.
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.
NOTE:
The heat sink may become hot during normal operation. Allow sufficient time for the heat sink to cool before you
touch it.
2.
Remove the
base cover
.
About this task
The following image indicates the location of the heat sink and provides a visual representation of the removal procedure.
Removing and installing components
29