Dell T105 owner manual Installing the System Board

4Remove all expansion cards and any attached cables. See "Removing an Expansion Card" on page 70.

5Remove all memory modules. See "Memory" on page 75.

NOTE: Record the memory-module socket locations to ensure proper reinstallation of the memory modules.

CAUTION: The processor and heat sink can become extremely hot. Allow sufficient time for the processor and heat sink to cool before handling.

NOTICE: To prevent damaging the processor, do not pry the heat sink off of the processor.

6Remove the processor. See "Removing the Processor" on page 79.

7Using a #2 Phillips screwdriver, remove the six system board mounting screws that secure the system board to the chassis. See Figure 6-2.

8Using a #2 Phillips screwdriver, remove the two processor heat sink pivot mount screws and remove the pivot mount from the system board. See Figure 6-2. The heat sink pivot mount screws are green and are longer than the system board mounting screws.

9Carefully route any loose cables away from the edges of the system board.

10Gently slide the system board toward the front of the system, then lift the system board up and out of the chassis.

Installing the System Board

1After removing the old system board, lower the new system board into the chassis, aligning the I/O ports on the system board with the I/O connector openings on the back panel of the chassis.

2Using a #2 Phillips screwdriver, install the six screws on the system board that secure it to the chassis. See Figure 6-2.

3Using a #2 Phillips screwdriver, attach the processor heat sink pivot mount to the system board. See Figure 6-2.

NOTICE: To prevent damaging the processor, clean the heat sink to remove any thermal grease and then apply fresh thermal grease to the processor before installing the heat sink.

4Replace the processor, and the heat sink and shroud assembly. See "Replacing the Processor" on page 82.

Installing System Components

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