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.

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Component replacement procedures 89

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HP CQ42-219AX, CQ42-205AU, CQ42-220AX, CQ42-218AX, CQ42-203AU, CQ42-210AU manual Enww