Dell Inspiron 5594 Service Manual - Page 37

Prerequisites, Procedure, Replacing the heat sink

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NOTE: The heat sink may become hot during normal operation. Allow sufficient time for the heat sink to cool before you touch it. 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. Prerequisites Remove the base cover. Procedure 1. In reverse sequential order (4->3->2->1), loosen the four captive screws that secure the heat sink to the system board. 2. Remove the three (M2x3) screws that secure the heat sink to the system board. NOTE: Applicable only to computers shipped with discrete graphics card. 3. Lift the heat sink off the system board. Replacing the heat sink NOTE: Before working inside your computer, read the safety information that shipped with your computer and follow the steps in Before working inside your computer. After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. CAUTION: Incorrect alignment of the heat sink can damage the system board and processor. 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. Removing and installing components 37

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NOTE:
The heat sink may become hot during normal operation. Allow sufficient time for the heat sink to cool before you
touch it.
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.
Prerequisites
Remove the
base cover
.
Procedure
1.
In reverse sequential order (4->3->2->1), loosen the four captive screws that secure the heat sink to the system board.
2.
Remove the three (M2x3) screws that secure the heat sink to the system board.
NOTE:
Applicable only to computers shipped with discrete graphics card.
3.
Lift the heat sink off the system board.
Replacing the heat sink
NOTE:
Before working inside your computer, read the safety information that shipped with your computer and follow
the steps in
Before working inside your computer
. After working inside your computer, follow the instructions in
After
working inside your computer
. For more safety best practices, see the Regulatory Compliance home page at
www.dell.com/regulatory_compliance
.
CAUTION:
Incorrect alignment of the heat sink can damage the system board and processor.
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.
Removing and installing components
37