Dell XPS 13 9305 Service Manual - Page 35

Removing the heat-sink assembly, Prerequisites, Procedure

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17 Removing the heat-sink assembly 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. 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 1. Remove the base cover. 2. Remove the battery. Procedure NOTE: The following procedure applies only to computers shipped with Intel Core i5 or Intel Core i7 processor. 1. Remove the screw (M1.6x3) that secures the wireless antenna and camera-cable bracket to the system board. 2. Lift the wireless antenna and camera-cable bracket from the system board. 3. Disconnect and lift the wireless antenna and camera-cable bracket from the system board, peeling off the tape securing the camera cable to the heat-sink assembly. 4. Disconnect the left-fan cable from the system board. 5. Disconnect the right-fan cable from the system board. 6. In reverse-sequential order (as indicated on the heat sink), remove the four screws (M2x3) that secure the heat-sink assembly to the system board. Removing the heat-sink assembly 35

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Removing the heat-sink assembly
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
.
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
1.
Remove the
base cover
.
2.
Remove the
battery
.
Procedure
NOTE:
The following procedure applies only to computers shipped with Intel Core i5 or Intel Core i7 processor.
1.
Remove the screw (M1.6x3) that secures the wireless antenna and camera-cable bracket to the system board.
2.
Lift the wireless antenna and camera-cable bracket from the system board.
3.
Disconnect and lift the wireless antenna and camera-cable bracket from the system board, peeling off the tape securing the
camera cable to the heat-sink assembly.
4.
Disconnect the left-fan cable from the system board.
5.
Disconnect the right-fan cable from the system board.
6.
In reverse-sequential order (as indicated on the heat sink), remove the four screws (M2x3) that secure the heat-sink
assembly to the system board.
17
Removing the heat-sink assembly
35