System board
Description Spare part number
For use only in computer models with Intel processors:
Equipped with microphones 448596-001
Not equipped with microphones 448598-001
Not equipped with UMA graphics subsystems and with a camera module 460715-001
Equipped with discrete graphics subsystems and with a camera module 460716-001
On defeatured models 460717-001
For use only in computer models with AMD processors:
Full-featured models without a camera module 453411-001
Defeatured models without a camera module 453412-001
Full-featured models with a camera module 462535-001
Defeatured models with a camera module 462536-001
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:
●
RTC battery (see
RTC battery on page 61)
●
Memory modules (see
Memory module on page 62)
●
WLAN module (see
WLAN module on page 57)
●
Modem module (see
Modem module on page 87)
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 53).
5.
Remove the following components:
a.
Hard drive (see
Hard drive on page 54)
b.
Optical drive (see
Optical drive on page 64)
c.
Keyboard (see
Keyboard on page 66)
d.
Switch cover (see
Switch cover on page 69)
e.
Display assembly (see
Display assembly on page 71)
Component replacement procedures 95
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