Dell PP30L Heat Sinks, Removing the Processor Heat Sink, Removing the Discrete Graphics Heat Sink

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Heat Sinks

Dell Precision™ Service Manual

Removing the Processor Heat Sink

Removing the Discrete Graphics Heat Sink

Replacing the Discrete Graphics Heat Sink

Replacing the Processor Heat Sink

CAUTION: 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 on www.dell.com at: www.dell.com/regulatory_compliance.

The Dell Precision™ M4400 contains two heat sinks. They are referred to as the processor heat sink and the discrete graphics heat sink.

Removing the Processor Heat Sink

To remove the processor heat sink, complete the following steps:

1.Follow the instructions in Before Working on Your Computer.

2.Close the display and turn the computer over.

3.Remove the bottom of the base assembly (see Removing the Bottom of the Base Assembly).

4.Remove the fan (see Removing the Fan).

5.Loosen, in sequential order, the four captive screws that secure the processor heat sink to the system board.

6.Carefully lift the screw-end of the assembly up at an angle, then ease the vent-end of the assembly out of the computer.

1	vent-end of assembly	2	processor heat sink
3	captive screw (4)	4	screw-end of assembly

Removing the Discrete Graphics Heat Sink

Before removing the discrete graphics heat sink, the processor heat sink must be removed.

1.Loosen the three captive screws that secure the graphics heat sink to the system board.

2.Carefully lift the screw-end of the assembly up at an angle, then ease the vent-end of the assembly out of the computer.