System board
Description | Spare part number |
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Equipped with Intel Core Duo U7600 | |
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Equipped with Intel Core Duo U7500 | |
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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 41).
5. Remove the following components:
a. Hard drive (see Hard drive on page 52)
b. Optical drive (see Optical drive on page 56)
c. Switch cover (see Switch cover on page 57)
d. Keyboard (see Keyboard on page 59)
e. Display assembly (see Display assembly on page 62)
f. Top cover (see Top cover on page 67)
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:
●SIM (see SIM on page 42)
●Memory module (see Memory module on page 45)
●RTC battery (see RTC battery on page 47)
●WLAN module (see WLAN module on page 48)
●WWAN module (see WWAN module on page 54)
●Fan/heat sink assembly (see Fan/heat sink assembly on page 74)
●PC Card assembly (see PC Card assembly on page 76)
●Modem module (see Modem module on page 78)
Remove the system board:
1. Turn the computer upside down, with the rear panel toward you.
70 Chapter 4 Removal and replacement procedures
