HP DM3 manual Fan/heat sink assembly, Description Spare part number

Fan/heat sink assembly

Description	Spare part number
Fan/heat sink assembly (includes replacement thermal material) for use only with computer	619440-001
models with UMA graphics subsystem memory
Fan/heat sink assembly (includes replacement thermal material) for use only with computer	626735-001
models with discrete graphics subsystem memory

Before removing the fan/heat sink assembly:

1.Shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn on the computer, and then shut it down through the operating system.

2.Disconnect all external devices connected to the computer.

3.Disconnect the power from the computer by first disconnecting the power cord from the AC outlet and then disconnecting the AC adapter from the computer.

4.Remove the following components:

a.Battery (see Battery on page 34)

b.Hard drive (see Hard drive on page 36)

c.Keyboard (see Keyboard on page 42)

d.Top cover (see Top cover on page 45)

e.Display assembly (see Display assembly on page 61)

f.System board (see System board on page 73)

Remove the fan/heat assembly (fan/heat sink appearance may vary):

NOTE: The following steps apply only to computer models equipped with graphics subsystems having UMA memory.

1.Turn the system board right-side up, with the front toward you.

Component replacement procedures 67