HP G72-c55DX HP G72 Notebook PC - Maintenance and Service Guide - Page 91
and the processor
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6. Disconnect the fan cable from the system board. 7. Loosen the two Phillips captive screws (1) and four Phillips spring-loaded captive screws (2) that secure the fan/heat sink assembly. NOTE: Due to the adhesive quality of the thermal material located between the fan/heat sink assembly and system board components, it might be necessary to move the fan/heat sink assembly from side to side to detach the assembly. 8. Remove the fan/heat sink assembly (3) by lifting straight up. Reverse this procedure to install the fan/heat sink assembly. 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. ENWW Component replacement procedures 81