System board
NOTE: All system board spare kits include replacement thermal material.
Description Spare part number
For use only with computer models equipped with AMD processors:
With RX781 Northbridge and ATI-M82-S discrete graphics subsystem memory
482324-001
With RS780 Northbridge and ATI-M UMA graphics subsystem memory 482325-001
For use only with computer models equipped with Intel processors:
With PM45 Northbridge and nVidia NB9P-GS discrete graphics subsystem memory
482870-001
With PM45 Northbridge and nVidia NB9M-GE discrete graphics subsystem memory 482867-001
With GM45 Northbridge and UMA graphics subsystem memory 482869-001
With ICH9M Northbridge and UMA graphics subsystem memory 482868-001
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 52).
5. Remove the following components:
a. Hard drive (see
Hard drive on page 62)
b. Optical drive (see
Optical drive on page 55)
c. Switch cover (see
Switch cover and keyboard on page 69)
d. Speaker assembly (see
Speaker assembly on page 74)
e. Display assembly (see
Display assembly on page 76)
f. Top cover (see
Top cover on page 84)
When replacing the system board, be sure that the following components are removed from the defective
system board and installed on the replacement system board:
●
TV tuner module (see
TV tuner module on page 57)
●
RTC battery (see
RTC battery on page 59)
●
Memory modules (see
Memory module on page 60)
●
WLAN module (see
Bluetooth module on page 75)
●
Modem module (see
Modem module on page 87)
92 Chapter 4 Removal and replacement procedures
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