Filter
Top Products
Description Spare part number
●
For use in computers with WLAN, with WWAN, no vPro (4M) 646321-002
●
For use in computers with vPro (8M), WLAN, and WWAN 646323-002
● For use in computers with vPro (8M), WLAN, WWAN, and USB 3.0 ports 646324-002
For use in computers with discrete graphics:
●
For use in computers with WLAN, with WWAN, no vPro (4M) 646316-002
● For use in computers with vPro (8M), WLAN, WWAN, and 512-MB graphics 646318-002
●
For use in computers with vPro (8M), WLAN, WWAN, and 1-GB graphics 646319-002
●
For use in computers with vPro (8M), WLAN, WWAN, 1-GB graphics, and USB 3.0 ports 670124-001
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 63).
5. Remove the following components:
a. Bottom door (see
Bottom door on page 70).
b. Hard drive (see
Hard drive on page 76)
c. Optical drive (see
Optical drive on page 72)
d. Fan (see
Fan on page 90)
e. Heat sink (see
Heat sink on page 91)
f. Keyboard (see
Keyboard on page 96)
g. Bottom cover (see
Bottom cover on page 98)
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 64)
● Memory module (see
Memory modules on page 79)
●
WLAN module (see
WLAN module on page 83)
●
WWAN module (see
WWAN module on page 81)
●
Modem module (see
Modem module on page 89)
Component replacement procedures 117