HP (Hewlett-Packard) LJ525UT#ABA ユーザーズマニュアル
Heat sink
All heat sink spare part kits include replacement thermal material.
Description
Spare part number
Heat sink for use in computers with UMA graphics
646283-001
Heat sink for use in computers with discrete graphics
646284-001
Before removing the heat sink, follow these steps:
1.
Shut down 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.
the computer on, 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 unplugging the power cord from the AC outlet,
and then unplugging the AC adapter from the computer.
and then unplugging the AC adapter from the computer.
4.
5.
Remove the following components:
a.
Bottom door (see
b.
c.
Optical drive (see
)
d.
)
e.
f.
)
g.
Heat sink (see
)
h.
Keyboard (see
)
i.
Top cover (see
j.
System board (see
)
k.
)
Remove the heat sink:
1.
Position the system board upright.
2.
To remove the discrete heat sink, in the order indicated, loosen the six captive Phillips screws
(1) — (6) that secure the heat sink to the system board.
(1) — (6) that secure the heat sink to the system board.
Component replacement procedures
95