System board
Description Spare part number
915GM for use only with computer models with wireless LAN capability 438521-001
910GML for use only with computer models with wireless LAN capability 438520-001
910GML for use only with computer models without wireless LAN capability 438519-001
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:
●
Memory module (see
Memory module on page 31)
●
Mini PCI card module (see
Mini PCI card module on page 33)
●
RTC battery (see
RTC battery on page 48)
●
Processor (see
Processor on page 53)
●
PC Card assembly (see
PC Card assembly on page 58)
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 cord.
4. Remove the battery (see Battery on page 28).
5. Remove the following components:
a. Hard drive (see
Hard drive on page 29)
b. Memory/Mini PCI card module compartment cover (see
Memory module on page 31)
c. Optical drive (see
Optical drive on page 35)
d. Switch cover (see
Switch cover on page 37)
e. Keyboard (see Keyboard on page 39)
f. Display assembly (see
Display assembly on page 41)
g. Base enclosure (see
Base enclosure on page 46)
h. Fan assembly (see
Fan assembly on page 49)
i. Heat sink (see
Heat sink on page 50)
56 Chapter 5 Removal and replacement procedures ENWW
