Remove the fan/heat assembly (fan/heat sink appearance may vary):
1.Turn the system board upside down.
2.Disconnect the fan cable (1) from the system board.
3.Follow the sequence embossed on heat sink to loosen the four Phillips PM2.5×7.0 captive screws
(2)that secure the fan/heat sink assembly to the system board.
NOTE: Due to the adhesive quality of the thermal material located between the fan/heat sink assembly and system board components, it may be necessary to move the fan/heat sink assembly from side to side to detach the assembly.
4.Remove the fan/heat sink assembly (3).
The thermal material must be thoroughly cleaned from the surface of the fan/heat sink assembly (1),
(3)and the processor (2) and video components (4) each time the fan/heat sink assembly is removed. Thermal pads and thermal paste must be installed on all surfaces before the fan/heat sink assembly is reinstalled.
NOTE: Thermal pads and thermal paste are included with all fan/heat sink assembly, system board, and processor spare part kits.
The following illustration shows the locations for thermal material on systems with discrete graphics subsystems.
88 Chapter 4 Removal and replacement procedures