System board
NOTE: All system board spare part kits include replacement thermal material.
Description Spare part number
For use in all countries and regions except for Russia and the People's Republic of China:
● Equipped with Intel Core i7 620M Dual Core processors (2.66-GHz, 4-MB L3 cache) 607702-001
●
Equipped with Intel Core i5 540M Dual Core processors (2.53-GHz, 3-MB L3 cache) 600462-001
● Equipped with Intel Core i5 520M Dual Core processors (2.40-GHz, 3-MB L3 cache) 600463-001
For use only in Russia and the People's Republic of China:
●
Equipped with Intel Core i7 620M Dual Core processors (2.66-GHz, 4-MB L3 cache) 607706-001
● Equipped with Intel Core i5 540M Dual Core processors (2.53-GHz, 3-MB L3 cache) 607704-001
● Equipped with Intel Core i5 520M Dual Core processors (2.40-GHz, 3-MB L3 cache) 607705-001
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 39).
5. Remove the following components:
a. Hard drive (see
Hard drive on page 41)
b. Keyboard (see
Keyboard on page 48)
c. Top cover (see
Top cover on page 51)
d. Display assembly (see
Display assembly on page 62)
e. System board shield (see
System board shield on page 66)
f. Smart card reader (see
Smart card reader on page 68)
g. Modem module (see
Modem module 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 40)
●
Memory modules (see
Memory modules on page 47)
●
WLAN module (see
WLAN module on page 43)
●
WWAN module (see
WWAN module on page 46)
70 Chapter 4 Removal and replacement procedures ENWW
