System information

Removal and replacement procedures
Maintenance and Service Guide 4–37
System board
✎
The system board spare kit includes 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 4-7).
5. Remove the following components:
a. Optical drive (see “Optical drive” on page 4-9)
b. Hard drive (see “Hard drive” on page 4-15)
c. Switch cover (see “Switch cover and keyboard” on page 4-20)
d. Display assembly (see “Display assembly” on page 4-25)
e. Top cover (see “Top cover” on page 4-30)
When replacing the system board, be sure that the following additional components are removed from the defective
system board and installed on the replacement system board:
■ TV tuner module (see “TV tuner module” on page 4-13)
■ Memory module (see “Memory module” on page 4-11)
■ RTC battery (see “RTC battery” on page 4-14)
■ WLAN module (see “WLAN module” on page 4-17)
■ Bluetooth module (see “Bluetooth module” on page 4-24)
■ Modem module (see “Modem module” on page 4-33)
■ Processor (see “Processor” on page 4-44)
Description Spare part number
For use with computers equipped with discrete graphics subsystem memory and 1 GB
of dedicated memory
571187-001
For use with computers equipped with discrete graphics subsystem memory and
512 MB of dedicated memory
571188-001
For use with computers equipped with UMA graphics subsystem memory 571186-001