Dell Inspiron 17 5755 Service Manual - Page 56

Removing the heat-sink assembly, Prerequisites, Procedure

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Removing the heat-sink assembly WARNING: 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 dell.com/regulatory_compliance. WARNING: 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 1 Remove the battery. 2 Remove the base cover. 3 Follow the procedure from step 1 to step 3 in "Removing the hard drive". 4 Remove the wireless card. 5 Remove the keyboard. 6 Follow the procedure from step 1 to step 4 in "Removing the optical drive". 7 Follow the procedure from step 1 to step 6 in "Removing the computer base". Procedure 1 Disconnect the fan cable from the system board. 2 In sequential order, as indicated on the heat-sink assembly, loosen the captive screws that secure the heat-sink assembly to the system board. 3 Remove the screws that secure the heat-sink assembly to the system board. 56

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Removing the heat-sink
assembly
WARNING: 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 dell.com/regulatory_compliance.
WARNING: 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
1
Remove the
battery
.
2
Remove the
base cover
.
3
Follow the procedure from step 1 to step 3 in “
Removing the hard drive
”.
4
Remove the
wireless card
.
5
Remove the
keyboard
.
6
Follow the procedure from step 1 to step 4 in “
Removing the optical
drive
”.
7
Follow the procedure from step 1 to step 6 in “
Removing the computer
base
”.
Procedure
1
Disconnect the fan cable from the system board.
2
In sequential order, as indicated on the heat-sink assembly, loosen the
captive screws that secure the heat-sink assembly to the system board.
3
Remove the screws that secure the heat-sink assembly to the system
board.
56