HP 655 HP 655 Notebook PC - Maintenance and Service Guide - Page 72

Fan/heat sink assembly, and then remove the following components

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4. Remove the system board (3) by sliding it up and to the right at an angle. Reverse this procedure to install the system board. Fan/heat sink assembly Description Fan/heat assembly (includes replacement thermal material) Spare part number 688306-001 Before removing the fan/heat sink assembly, 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 35), and then remove the following components: a. Memory module/wireless module compartment cover (see Memory module on page 36) b. Keyboard (see Keyboard on page 39) c. Hard drive (see Hard drive on page 45) 64 Chapter 4 Removal and replacement procedures

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4.
Remove the system board
(3)
by sliding it up and to the right at an angle.
Reverse this procedure to install the system board.
Fan/heat sink assembly
Description
Spare part number
Fan/heat assembly (includes replacement thermal material)
688306-001
Before removing the fan/heat sink assembly, 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
35
), and then remove the following components:
a.
Memory module/wireless module compartment cover (see
Memory module
on page
36
)
b.
Keyboard (see
Keyboard
on page
39
)
c.
Hard drive (see
Hard drive
on page
45
)
64
Chapter 4
Removal and replacement procedures