Reverse this procedure to install the speaker assembly.
System board
NOTE:
All system board spare part kits include replacement thermal material and VGA support
bracket.
NOTE:
Models that support quad-core processors have four memory slots. Models that support
dual-core processors have two memory slots.
Description
Spare part number
For use with the following dual-core processors: 520M, 540M, 620M
595764-001
For use with the following quad-core processors: 720QM, 820QM
595765-001
For use only in Russia and the People's Republic of China with the following dual-core
processors: 520M, 540M, 620M
630293-001
For use only in Russia and the People's Republic of China with the following quad-core
processors: 720QM, 820QM
630294-001
Before removing the system board, 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 battery (see
Battery on page 47
).
5.
Remove the following components:
a.
Hard drive (see
Hard drive on page 54
)
b.
Optical drive (see
Optical drive on page 49
)
c.
Keyboard (see
Keyboard on page 65
)
d.
Switch cover (see
Switch cover on page 72
)
e.
Display assembly (see
Display assembly on page 82
)
f.
Fan (see
Fan on page 74
)
g.
Heat sink (see
Heat sink on page 76
)
h.
Top cover (see
Top cover on page 88
)
i.
ExpressCard/audio assembly (see
ExpressCard/audio assembly on page 93
)
j.
Modem module (see
Modem module on page 92
)
Component replacement procedures
97
