System board
NOTE: The processor is included on the system board.
The system board Thermal Material Kit, part number
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System board | |
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IMPORTANT: Make special note of each screw and screw lock size and location during removal and replacement.
Before removing the system board, follow these steps:
1.Shut down the computer.
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 20).
5.Remove the keyboard (see Keyboard on page 24).
6.Remove the top cover (see Top cover on page 28).
7.Remove the hard drive (see Hard drive on page 32).
8.Remove the USB board (see USB board/Audio jack on page 34).
9.Remove the WLAN (see WLAN module on page 35).
After removing 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 41)
●RTC battery (see RTC battery on page 44)
●Heat sink (see Heat sink on page 46)
●PCH heat sink (see PCH heat sink on page 45) Remove the system board:
1.Disconnect the following cables from the system board:
●Display panel cable (1)
●Speaker cable (2)
●Fan power connector (3)
38 Chapter 4 Removal and replacement procedures