System board
Description Spare part number
For use only with full-featured computer models 441635-001
For use only with defeatured computer models with wireless LAN capability 441636-001
For use only with defeatured computer models without wireless LAN capability 441637-001
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 32)
●
Mini PCI card module (see
Mini PCI card module on page 34)
●
RTC battery (see
RTC battery on page 51)
●
Processor (see
Processor on page 55)
●
PC Card assembly (see
PC Card assembly on page 61)
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 29).
5. Remove the following components:
a. Hard drive (see
Hard drive on page 30)
b. Memory/Mini PCI card module compartment cover (see
Memory module on page 32)
c. Optical drive (see
Optical drive on page 36)
d. Switch cover (see
Switch cover on page 38)
e. Keyboard (see Keyboard on page 40)
f. Display assembly (see
Display assembly on page 44)
g. Base enclosure (see
Base enclosure on page 49)
h. Fan assembly (see
Fan assembly on page 52)
i. Heat sink (see
Heat sink on page 53)
58 Chapter 5 Removal and replacement procedures ENWW
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