HP Dv7-2170us HP Pavilion dv7 Entertainment PC - Maintenance and Service Guide - Page 96

and graphics/heat sink, that services it. Thermal pads are used on the graphics subsystem chip

Page 96 highlights

Removal and replacement procedures 5. Turn the system board upside down, with the expansion port 3 and external monitor port toward you. 6. Disconnect the fan cable 1 from the system board. 7. Loosen the four Phillips PM2.5×6.0 captive screws 2 that secure the fan/heat sink assembly to the system board. 8. Remove the fan/heat sink assembly 3 from the system board. ✎ 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 graphics subsystem chip 3 and graphics/heat sink contact 4, the Northbridge chip 5 and Northbridge contact 6. Replacement thermal material is included with all fan/heat sink assembly, system board, and processor spare part kits. Reverse this procedure to install the fan/heat sink assembly. Maintenance and Service Guide 4-53

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Removal and replacement procedures
Maintenance and Service Guide
4–53
5. Turn the system board upside down, with the expansion port 3 and external monitor port toward you.
6. Disconnect the fan cable
1
from the system board.
7. Loosen the four Phillips PM2.5×6.0 captive screws
2
that secure the fan/heat sink assembly to the system
board.
8. Remove the fan/heat sink assembly
3
from the system board.
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 graphics subsystem chip
3
and graphics/heat sink
contact
4
, the Northbridge chip
5
and Northbridge contact
6
. Replacement thermal material is included with all
fan/heat sink assembly, system board, and processor spare part kits.
Reverse this procedure to install the fan/heat sink assembly.