HP Pavilion dv7-3100 HP Pavilion dv7 Entertainment PC - Maintenance and Servic - Page 83
The thermal material must be thoroughly cleaned from the surfaces of the fan/heat sink assembly and the system
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Removal and replacement procedures e. Speaker assembly (see "Speaker assembly" on page 4-23) f. Display assembly (see "Display assembly" on page 4-25) g. Top cover (see "Top cover" on page 4-34) h. System board (see "System board" on page 4-37) i. USB board (see "USB board" on page 4-41) Remove the fan/heat sink: 1. Turn the system board upside down, with the expansion port and external monitor port toward you. 2. Disconnect the fan cable 1 from the system board. 3. In the order indicated on the fan/heat sink, loosen the seven Phillips captive screws 2 that secure the fan/heat sink assembly to the system board. 4. Remove the fan/heat sink assembly 3. ✎ 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. ✎ The thermal material must be thoroughly cleaned from the surfaces of the fan/heat sink assembly and the system board each time the fan/heat sink assembly is removed. Thermal paste is used on the processor 1 and the heat sink section 2 that services it. Thermal pads are used on the Northbridge chip 3 and Northbridge contact 4, the graphics subsystem chip 5 and graphics/heat sink contact 6 and various capacitors and their contacts 7. Replacement thermal material is included with all fan/heat sink assembly, system board, and processor spare part kits. Maintenance and Service Guide 4-47