Specifications

System board
NOTE: The system board spare part kit includes replacement thermal material.
Description Spare part number
System board for use in computers with DDR2 memory that include a WWAN module:
GL47 system board with UMA graphics subsystem memory 535858-001
GL40 system board with UMA graphics subsystem memory 535857-001
System board with discrete graphics subsystem memory 535756-001
System board for use in computers with DDR2 memory that do not include a WWAN module:
GL47 system board with UMA graphics subsystem memory 574510-001
GL40 system board with UMA graphics subsystem memory 574509-001
System board with discrete graphics subsystem memory 574508-001
System board for use in computers with DDR3 memory that include a WWAN module:
GM45 system board with UMA graphics subsystem memory 583081-001
GL40 system board with UMA graphics subsystem memory 583080-001
System board with discrete graphics subsystem memory 583082-001
System board for use in computers with DDR3 memory that do not include a WWAN module:
GM45 system board with UMA graphics subsystem memory 583079-001
GL40 system board with UMA graphics subsystem memory 583078-001
System board with discrete graphics subsystem memory 583077-001
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 63).
5. Remove the following components:
a. Switch cover and keyboard (see
Switch cover and keyboard on page 64)
b. Speakers (see
Speakers on page 73)
c. WWAN module (see
WWAN module on page 74)
d. Palm rest (see
Palm rest on page 75)
e. WLAN module (see
WLAN module on page 80)
f. Hard drive (see
Hard drive on page 78)
112 Chapter 4 Removal and replacement procedures