Description Spare part number
For use only on computer models equipped with a separate processor, a graphics subsystem with UMA
memory, and the Windows 8 Standard operating system
760289-501
For use only on computer models equipped with a separate processor, a graphics subsystem with UMA
memory, and a non-Windows 8 operating system
760289-001
Before removing the system board, follow these steps:
1. Turn off 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 the power from the computer by unplugging the power cord from the computer.
3. Disconnect all external devices from the computer.
4. Remove the battery (see
Battery on page 34), and then remove the following components:
a. Service cover (see
WLAN module on page 35)
b. Hard drive (see
Hard drive on page 38)
c. Base enclosure (see
Base enclosure on page 45)
d. Display assembly (see
Display assembly on page 47)
e. Fan (see
Fan on page 55)
NOTE: 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 40)
●
Heat sink (see
Heat sink on page 60)
●
Processor (see
Processor on page 62)
Remove the system board:
1. Disconnect the following cables from the system board:
(1) Connector board cable
(2) Connector board ribbon cable
(3) Power connector cable
(4) Display panel cable
(5) Webcam/microphone module cable
(6) Wireless antenna cables
Component replacement procedures 57