Dell Inspiron 11z (1120, Mid 2010) - Manual (Page 18)

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Processor Heat Sink
Dell™ Inspiron™ 1121 Service Manual
Removing the Processor Heat Sink
Replacing the Processor Heat Sink
Removing the Processor Heat Sink
1. Follow the instructions in Before You Begin .
2. Remove the system board (see Removing the System Board ).
3. Disconnect the fan cable from the system board connector.
4. Loosen the four captive screws that secure the processor heat sink to the system board in sequential order (indicated next to the captive screws).
5. Remove the processor heat sink from the system board.
Replacing the Processor Heat Sink
1. Follow the instructions in Before You Begin .
2. Align the four captive screws on the processor heat sink with the screw holes on the system board and tighten the screws in sequential order (indicated
next to the captive screws).
3. Connect the fan cable to the system board connector.
4. Replace the system board (see Replacing the System Board ).
WARNING: Before working inside your computer, read the safety information that shipped with your computer. For additional safety best
practices information, see the Regulatory Compliance Homepage at www.dell.com/regulatory_compliance.
WARNING: If you remove the processor heat sink from the computer when the heat sink is hot, do not touch the metal housing of the processor
heat sink.
CAUTION: Only a certified service technician should perform repairs on your computer. Damage due to servicing that is not authorized by Dell™
is not covered by your warranty.
CAUTION: To avoid electrostatic discharge, ground yourself by using a wrist grounding strap or by periodically touching an unpainted metal
surface (such as a connector on your computer).
CAUTION: To help prevent damage to the system board, remove the main battery (see Removing the Battery ) before working inside the
computer.
1 fan cable 2 captive screws (4)
3 processor heat sink
NOTE: The original thermal pad can be reused if the original processor and processor heat sink are reinstalled together. If either the processor or
processor heat sink is replaced, use the thermal pad provided in the kit to ensure that thermal conductivity is achieved.
NOTE: This procedure assumes that you have already removed the processor heat sink and are ready to replace it.
CAUTION: Before turning on the computer, replace all screws and ensure that no stray screws remain inside the computer. Failure to do so may
result in damage to the computer.