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4–30 Maintenance and Service Guide
Removal and replacement procedures
System board
✎
The system board spare part kit includes replacement thermal material.
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 4-8).
5. Remove the following components:
a. SIM (see “SIM” on page 4-9)
b. Hard drive cover (see “Hard drive” on page 4-10)
c. Keyboard (see “Keyboard” on page 4-17)
d. Hinge cover (see “Hinge cover” on page 4-20)
e. Top cover (see “Top cover” on page 4-21)
f. Display assembly (see “Display assembly” on page 4-27)
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 4-9)
■ WLAN module (see “WLAN module” on page 4-12)
■ WWAN module (see “WWAN module” on page 4-15)
■ Memory modules (see “Memory module” on page 4-16)
■ RTC battery (see “RTC battery” on page 4-23)
■ Fan/heat sink assembly (see “Fan/heat sink assembly” on page 4-34)
■ Modem module (see “Modem module” on page 4-36)
Description Spare part number
For use in all countries and regions except for Russia and the People’s Republic of China
■ Equipped with Intel Core2 Duo SL9600 2.13-GHz processor, 1066-MHz FSB, and 6-MB L2 cache 530589-001
■ Equipped with Intel Core2 Duo SL9400 1.86-GHz processor, 1066-MHz FSB, and 6-MB L2 cache 501483-001
■ Equipped with Intel Core2 Duo SL9300 1.60-GHz processor, 1066-MHz FSB, and 6-MB L2 cache 501482-001
■ Equipped with Intel Core2 Duo SU9400 1.40-GHz processor, 800-MHz FSB, and 3-MB L2 cache 530590-001
■ Equipped with Intel Core2 Duo SU9300 1.20-GHz processor, 800-MHz FSB, and 3-MB L2 cache 501481-001
For use in Russia and the People’s Republic of China
■ Equipped with Intel Core2 Duo SL9600 2.13-GHz processor, 1066-MHz FSB, and 6-MB L2 cache 598660-001
■ Equipped with Intel Core2 Duo SL9400 1.86-GHz processor, 1066-MHz FSB, and 6-MB L2 cache 510371-001
■ Equipped with Intel Core2 Duo SL9300 1.60-GHz processor, 1066-MHz FSB, and 6-MB L2 cache 510370-001
■ Equipped with Intel Core2 Duo SU9400 1.40-GHz processor, 800-MHz FSB, and 3-MB L2 cache 598661-001
■ Equipped with Intel Core2 Duo SU9300 1.20-GHz processor, 800-MHz FSB, and 3-MB L2 cache 510369-001