Dell Inspiron 5421, Руководство по обслуживанию

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Steps
1. Align the screw holes on the heat sink and fan assembly with the screw holes on the system board.
2. In sequential order (as indicated on the heat sink), tighten the four (M2x3) and two (M2x5) screws that secure the heat sink
and fan assembly to the system board.
Next steps
1. Install the microSD card .
2. Install the SIM card .
3. Install the base cover .
4. Exit Service Mode .
5. Follow the procedure in After working inside your computer .
Removing the heat sink and fan assembly - Discrete configuration
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. Enter Service Mode .
3. Remove the SIM card .
4. Remove the microSD card .
5. Remove the base cover .
About this task
The following images indicate the location of the heat sink and fan assembly for a system with discrete configuration and
provide a visual representation of the removal procedure.
44 Removing and installing components