System board
Description Spare part number
System board (includes processor, replacement thermal material, and replacement thermal material
cleaning kit)
With LV SL9600 processor 513947-001
With LV SL9400 processor 492552-001
With LV SL9300 processor 492551-001
With ULV SU9400 processor 513946-001
With ULV SU9300 processor 492553-001
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 46).
5. Remove the following components:
a. Primary hard drive (see
Primary hard drive on page 55)
b. WLAN module (see
WLAN module on page 52)
c. Optical drive (see
Optical drive on page 60) or Secondary hard drive (see Secondary hard
drive on page 68)
d. Switch cover and keyboard (see
Switch cover and keyboard on page 62)
e. Display assembly (see
Display assembly on page 74)
f. Top cover (see
Top cover on page 80)
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:
●
Memory module (see
Expansion memory module on page 50)
●
Primary hard drive (see
Primary hard drive on page 55)
●
Fan (see
Fan on page 90)
●
Heat sink (see
Heat sink on page 92)
●
WLAN module (see
WLAN module on page 52)
●
WWAN module (see
WWAN module on page 58)
84 Chapter 4 Removal and replacement procedures
