Heat Sink - HP 470 17 inch G9 Notebook PC Maintenance And Service Manual

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2.
Disconnect the fan cable from the system board (2), and then remove the fan assembly from the
computer (3).
To install the fan or fan assembly, reverse this procedure.

Heat sink

To remove the heat sink, use these procedures and illustrations.
Table 5-11
Heat sink description and part number
Description
Heat sink for use in models with UMA graphics
Heat sink for use in models with discrete graphics
Before removing the heat sink, follow these steps:
1.
Prepare the computer for disassembly (see
2.
Remove the bottom cover (see
3.
Remove the battery (see
Remove the heat sink from models with UMA graphics:
1.
In the order indicated on the heat sink, remove the four Phillips M2.0 × 2.8 screws (1) that secure the heat
sink to the computer.
2.
Remove the heat sink from the computer (2).
44
Chapter 5  Removal and replacement procedures for authorized service provider parts
Preparation for disassembly on page
Bottom cover and rubber feet on page
Battery on page
32).
Spare part number
M53875-001
M50437-001
30).
30).

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