System Board - HP ProBook 4340s Service Manual

System board

NOTE: All system board spare part kits include replacement thermal material.
Description
System board for use in models without Windows 8:
Discrete graphics
UMA graphics
UMA graphics in Japan
System board for use in Windows 8 models:
Discrete graphics and Windows 8 Standard
Discrete graphics and Windows 8 Professional
UMA graphics and Windows 8 Standard
UMA graphics and Windows 8 Professional
Discrete graphics and Windows 8 Standard in Japan
UMA graphics and Windows 8 Professional in Japan
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
5. Remove the following components:
a. Bottom door (see
b. Hard drive (see
c. Optical drive (see
d. Keyboard (see
e. Top cover (see
When replacing the system board, be sure to remove the following components from the defective
system board and install on the replacement system board:
●
SIM card (see
●
Memory module (see
Battery on page
Bottom door on page
Hard drive on page
Optical drive on page
Keyboard on page
Top cover on page
SIM on page 43)
Memory modules on page
40).
42).
46)
44)
54)
56)
48)
Component replacement procedures
Spare part number
683855-001
683856-001
696335-001
683855-501
683855-601
683856-501
683856-601
696335-501
696335-601
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