Dell Latitude 5550 Owners Manual - Page 89

Removing the heat sink (Integrated GPU), Installing the heat sink Discrete GPU

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Figure 49. Installing the heat sink (Discrete GPU) Steps 1. Place the heat sink on the system board. 2. Tighten the seven captive screws that secure the heat sink to the system board. NOTE: Tighten the captive screws in the sequential order mentioned on the heat sink [1 > 2 > 3 > 4 >5 > 6 > 7]. NOTE: The number of screws varies depending on the configuration ordered. 3. Replace the screw (M2x4) that secures the heat sink to the system board. Next steps 1. Install the base cover. 2. Install the SIM card. 3. Follow the procedure in After working inside your computer. Removing the heat sink (Integrated GPU) CAUTION: The information in this installation section is intended for authorized service technicians only. Prerequisites 1. Follow the procedure in Before working inside your computer. 2. Remove the SIM card. 3. Remove the base cover. About this task NOTE: The heat sink may become hot during normal operation. Allow sufficient time for the heat sink to cool before you touch it. NOTE: 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. Removing and installing Field Replaceable Units (FRUs) 89

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Figure 49. Installing the heat sink (Discrete GPU)
Steps
1.
Place the heat sink on the system board.
2.
Tighten the seven captive screws that secure the heat sink to the system board.
NOTE:
Tighten the captive screws in the sequential order mentioned on the heat sink [1 > 2 > 3 > 4 >5 > 6 > 7].
NOTE:
The number of screws varies depending on the configuration ordered.
3.
Replace the screw (M2x4) that secures the heat sink to the system board.
Next steps
1.
Install the
base cover
.
2.
Install the
SIM card
.
3.
Follow the procedure in
After working inside your computer
.
Removing the heat sink (Integrated GPU)
CAUTION:
The information in this installation section is intended for authorized service technicians only.
Prerequisites
1.
Follow the procedure in
Before working inside your computer
.
2.
Remove the
SIM card
.
3.
Remove the
base cover
.
About this task
NOTE:
The heat sink may become hot during normal operation. Allow sufficient time for the heat sink to cool before you
touch it.
NOTE:
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.
Removing and installing Field Replaceable Units (FRUs)
89