HP 9470m User Manual download pdf (Page 80)

Heat sink

NOTE: The heat sink spare part kit includes replacement thermal material.

Description Spare part number

Heat sink 707907-001

Before removing the heat sink, follow these steps:

1. Turn off the computer. If you are unsure whether the computer is off or in Hibernation, turn the

computer on, and then shut it down through the operating system.

2. Disconnect the power from the computer by unplugging the power cord from the computer.

3. Disconnect all external devices from the computer.

4. Remove the battery (see

Battery on page 41), and then remove the following components:

a. Hard drive cover (see

Hard drive cover on page 47)

b. Hard drive (see

Hard drive/SSD drive on page 48)

c. Service cover (see

Service cover on page 53)

d. WLAN module (see

WLAN module on page 58)

e. WWAN module (see

WWAN module on page 56)

f. Fan (see

Fan on page 68)

g. Keyboard (see

Keyboard on page 60)

h. Base enclosure (see

Base enclosure on page 63)

i. System board (see

System board on page 69)

Remove the heat sink:

1. Following the 1, 2, 3, 4 sequence stamped into the heat sink, loosen the four captive Philllips

screws (1) that secure the heat sink to the system board.

72 Chapter 4 Removal and replacement procedures

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HP 9470m User Manual Page 80