36 | Replacing the Thermal-Cooling Assembly
Replacing the Thermal-Cooling 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" on page 7. After working inside your computer, follow the
instructions in "After Working Inside Your Computer" on page 9.
For more safety best practices, see the Regulatory Compliance home page at
dell.com/regulatory_compliance.
Procedure
NOTE: The original thermal grease can be reused, if the original system board
and thermal-cooling assembly are reinstalled together. If either the system board
or the thermal-cooling assembly is replaced, use the thermal pad provided in the
kit to make sure that thermal conductivity is achieved.
1Align the screws on the thermal-cooling assembly with the screw holes on the
system board.
2In sequential order (indicated on the thermal-cooling assembly), tighten the captive
screws that secure the thermal-cooling assembly to the system board.
3Connect the fan cable to the system board.
Postrequisites
1Replace the bottom cover. See"Replacing the Bottom Cover" on page 28.
2Replace the keyboard. See "Replacing the Keyboard" on page 24.
3Replace the wireless card. See "Replacing the Wireless Card" on page 20.
4Replace the hard drive. See "Replacing the Hard Drive" on page 18.
5Replace the battery. See "Replacing the Battery" on page 13.
6Replace the base cover. See "Replacing the Base Cover" on page 11.