System board
NOTE: All system board spare part kits include replacement thermal material.
Description | Spare part number |
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For use only with computer models equipped with a discrete graphics subsystem | |
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For use only with computer models equipped with a UMA graphics subsystem | |
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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 40).
5. Remove the following components:
a. Hard drive (see Hard drive on page 45)
b. Optical drive (see Optical drive on page 53)
c. Keyboard (see Keyboard on page 54)
d. Switch cover (see Switch cover on page 56)
e. Display assembly (see Display assembly on page 59)
f. Top cover (see Top cover on page 65)
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:
●RTC battery (see RTC battery on page 50)
●Memory modules (see Memory module on page 51)
●WLAN module (see WLAN module on page 48)
●Modem module (see Modem module on page 71) Remove the system board:
1. Disconnect the power connector cable (1) from the system board.
82 Chapter 4 Removal and replacement procedures
