System board
NOTE: All system board spare part kits include a processor and replacement thermal material.
Description Spare part number
Equipped with an AMD A12-9720P 2.70-GHz (turbo up to 3.60-GHz) quad core processor (1866-MHz
FSB, 2.0-MB L2 cache, 15-W), an AMD Radeon R7 Graphics subsystem with UMA video memory, and
the Windows 10 operating system
931278-601
Equipped with an AMD A12-9720P 2.70-GHz (turbo up to 3.60-GHz) quad core processor (1866-MHz
FSB, 2.0-MB L2 cache, 15-W), an AMD Radeon R7 Graphics subsystem with UMA video memory, and a
non-Windows operating system
931278-001
Equipped with an AMD A10-9620P 2.50-GHz (turbo up to 3.40-GHz) quad core processor (1866-MHz
FSB, 2.0-MB L2 cache, 15-W), an AMD Radeon R5 Graphics subsystem with UMA video memory, and
the Windows 10 operating system
931727-601
Equipped with an AMD A10-9620P 2.50-GHz (turbo up to 3.40-GHz) quad core processor (1866-MHz
FSB, 2.0-MB L2 cache, 15-W), an AMD Radeon R5 Graphics subsystem with UMA video memory, and a
non-Windows operating system
931727-001
Before removing the system board, follow these steps:
1. Shut down the computer. If you are unsure whether the computer is o 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 rst unplugging the power cord from the AC outlet, and
then unplugging the AC adapter from the computer.
4. Remove the optical drive (see Optical drive on page 24), and then remove the following components:
a. Bottom cover (see Bottom cover on page 25)
b. Battery (see Battery on page 27)
c. Fan (see Fan on page 36)
When replacing the system board, be sure to remove the following components from the defective system
board and install them on the replacement system board:
●
WLAN module (see WLAN module on page 29)
●
Memory module (see Memory module on page 30)
●
Heat sink (see Heat sink on page 40)
●
Connector board cable (see Connector board cable on page 42)
●
Optical drive cable (see Optical drive cable on page 43)
Remove the system board:
1. Disconnect the following cables from the system board:
(1) Connector board ZIF connector cable
(2) Backlight ZIF connector cable
(3) Wireless antenna cables
Component replacement procedures 37
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