Heat sink assembly
All heat sink assembly spare part kits include replacement thermal material.
Description
Spare part number
Heat sink
910978-001
Before removing the heat sink assembly, 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.
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.
4.
Remove the following components:
a.
Service door (see
).
b.
Hard drive (see
)
c.
WLAN module (see
WLAN/Bluetooth combo card on page 37
)
d.
WWAN module (see
)
e.
Keyboard (see
)
f.
Top cover (see
)
g.
Battery (see
h.
System board (see
Remove the heat sink assembly:
1.
Position the system board upside-down.
2.
In the order indicated on the heat sink, loosen the 4 captive Phillips screws (1)–(4) that secure the heat
sink to the system board.
Component replacement procedures
71
