Dell Inspiron 7500, Руководство по обслуживанию

Страница: 24 / 75

Heat sink
Removing the heat sink
Prerequisites
1. Follow the procedure in Before working inside your computer .
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.
NOTE: The heat sink may become hot during normal operation. Allow sufficient time for the heat sink to cool before
you touch it.
2. Remove the base cover .
About this task
The following image indicates the location of the heat sink and provides a visual representation of the removal procedure.
Steps
1. Peel the tape that secures the touchscreen cable to the heat sink.
2. In reverse sequential order (as indicated on the heat sink), loosen the four captive screws that secure the heat sink to the system
board.
3. Lift the heat sink off the system board.
Installing the heat sink
Prerequisites
If you are replacing a component, remove the existing component before performing the installation procedure.
CAUTION: Incorrect alignment of the heat sink can damage the system board and processor.
NOTE: If either the system board or the heat sink is replaced, use the thermal pad/paste provided in the kit to ensure
that thermal conductivity is achieved.
24 Removing and installing components