System board
Description
Spare part number
System boards
(include thermal material)
For use in computer models with Intel processors:
●
On models equipped with a 256-MB discrete graphics subsystem
486723-001
●
On models equipped with a 512-MB discrete graphics subsystem
496730-001
●
On models equipped with a UMA graphics subsystem
486724-001
For use in computer models with AMD processors:
488238-001
NOTE:
All system board spare part kits include replacement thermal material.
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 55
).
5.
Remove the following components:
a.
Hard drive (see
Hard drive on page 59
)
b.
Optical drive (see
Optical drive on page 57
)
c.
Keyboard (see
Keyboard on page 72
)
d.
Keyboard cover (see
Keyboard cover on page 76
)
e.
Display assembly (see
Display assembly on page 83
)
f.
Top cover (see
Top cover on page 95
)
Remove the system board:
1.
Disconnect the following cables from the system board:
●
Modem module cable
(1)
●
Audio board cable
(2)
110 Chapter 4 Removal and replacement procedures
