System board
NOTE: The system board is with an Intel Celeron N2840 2.16-GHz (SC turbo up to 2.58-GHz) dual core
processor (1333-MHz FSB, 1.0-MB L2 cache, 4.5 W), a graphics subsystem with UMA memory, 2.0-GB of
system memory, and 32-GB of eMMC primary storage and includes replacement thermal material.
Description Spare part number
Equipped with the Windows 8 Professional operating system. 803188-601
Equipped with the Windows 8 Standard operating system. 803188-501
Equipped with a non-Windows 8 operating system. 803188-001
Before removing the system board, follow these steps:
1. Turn off 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 the power from the computer by unplugging the power cord from the computer.
3. Disconnect all external devices from the computer.
4. Remove the keyboard/top cover (see Keyboard/top cover on page 22).
5. Remove the WLAN module (see WLAN module on page 31).
Remove the system board:
1. Disconnect the power connector cable (1) from the system board.
2. Release the ZIF connector (2) to which the display panel cable is attached, and then disconnect the
display panel cable from the system board.
3. Release the ZIF connector (3) to which the connector board cable is attached, and then disconnect the
connector board cable from the system board.
Component replacement procedures 35