HP nx9420, nw9440 manual Processor Heat Sink Spare Part Number Information

Removal and Replacement Procedures

5.18 Processor Heat Sink

Processor Heat Sink Spare Part Number Information

Processor heat sink (includes thermal paste) 409949-001

1.Prepare the computer for disassembly (Section 5.3).

2.Release the keyboard (Section 5.11).

3.Remove the fan assembly (Section 5.17).

4.Loosen the four Phillips PM2.5×7.0 screws 1 that secure the heat sink to the system board.

5.Lift the front edge of the heat sink 2 to disengage it from the processor.

✎Due to the adhesive quality of the thermal paste located between the heat sink and processor, it may be necessary to move the heat sink from side to side to detach the heat sink from the processor.

6.Slide the heat sink 3 to the right and remove it.

Removing the Processor Heat Sink

5–36 Maintenance and Service Guide