Dell Inspiron 16 Plus 7640 Owners Manual - Page 72

System board, Removing the system board

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Prerequisites If you are replacing a component, remove the existing component before performing the installation process. About this task NOTE: If either the system board or the heat sink is replaced, use the thermal grease provided in the kit to ensure that thermal conductivity is achieved. The following image(s) indicate the location of the heat sink and provides a visual representation of the installation procedure. Figure 47. Installing the heat sink Steps 1. Place the heat sink on the palm-rest and keyboard assembly. 2. Align the captive screws on the heat sink to the screw holes on the system board. 3. In sequential order (1>2>3>4), tighten the four captive screws that 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. System board Removing the system board CAUTION: The information in this section is intended for authorized service technicians only. Prerequisites 1. Follow the procedure in Before working inside your computer. NOTE: Ensure that your computer is in Service Mode. For more information, see step 6 in Before working inside your computer. 2. Remove the base cover. 72 Removing and installing Field Replaceable Units (FRUs)

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Prerequisites
If you are replacing a component, remove the existing component before performing the installation process.
About this task
NOTE:
If either the system board or the heat sink is replaced, use the thermal grease provided in the kit to ensure that
thermal conductivity is achieved.
The following image(s) indicate the location of the heat sink and provides a visual representation of the installation procedure.
Figure 47. Installing the heat sink
Steps
1.
Place the heat sink on the palm-rest and keyboard assembly.
2.
Align the captive screws on the heat sink to the screw holes on the system board.
3.
In sequential order (1>2>3>4), tighten the four captive screws that 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
.
System board
Removing the system board
CAUTION:
The information in this section is intended for authorized service technicians only.
Prerequisites
1.
Follow the procedure in
Before working inside your computer
.
NOTE:
Ensure that your computer is in Service Mode. For more information, see
step 6
in
Before working inside your
computer
.
2.
Remove the
base cover
.
72
Removing and installing Field Replaceable Units (FRUs)