Description
Spare part number
For use only with computer models equipped with 2 GB of dedicated switchable discrete video
memory and Windows 8 Professional
680570-601
For use only with computer models equipped with 2 GB of dedicated switchable discrete video
memory and Windows 8 Standard
680570-501
For use only with computer models equipped with 2 GB of dedicated switchable discrete video
memory and FreeDOS 1.0
680570-001
For use only with computer models equipped with 1 GB of dedicated switchable discrete video
memory and Windows 8 Professional
680569-601
For use only with computer models equipped with 1 GB of dedicated switchable discrete video
memory and Windows 8 Standard
680569-501
For use only with computer models equipped with 1 GB of dedicated switchable discrete video
memory and FreeDOS 1.0
680569-001
For use only with computer models equipped with UMA video memory and Windows 8 Professional
680568-601
For use only with computer models equipped with UMA video memory and Windows 8 Standard
680568-501
For use only with computer models equipped with UMA video memory and FreeDOS 1.0
680568-001
System board thermal pad kit
(includes replacement thermal material)
680571-001
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 41
).
5.
Remove the service door (see
Service door on page 42
).
6.
Remove the optical drive (see
Optical drive on page 43
).
7.
Remove the hard drive (see
Hard drive on page 45
)
8.
Remove the keyboard (see
Keyboard on page 52
).
9.
Remove the top cover (see
Top cover on page 57
).
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 47
)
●
RTC battery (see
RTC battery on page 78
)
●
Fan and heat sink (see
Fan and heat sink on page 80
)
●
PCH heat sink (see
PCH heat sink on page 83
)
●
Processor (see
Processor on page 84
)
76
Chapter 4 Removal and replacement procedures
ENWW
