System board
NOTE: The system board spare part kit includes an HDMI port, micro-SD card reader slot, USB port, WLAN
slot, and replacement thermal material.
Description Spare Part Number
Intel Celeron N3450 1.1 GHz (SC turbo up to 2.2 GHz) quad core processor (1866 MHz FSB, 2.0 MB L2
cache, 4.0 W), 4.0 GB of system memory, 128 GB of eMMC system storage, and the Windows 10
Professional operating system
L02770-601
Intel Celeron N3450 1.1 GHz (SC turbo up to 2.2 GHz) quad core processor (1866 MHz FSB, 2.0 MB L2
cache, 4.0 W), 4.0 GB of system memory, 64 GB of eMMC system storage, and the Windows 10
Professional operating system
L02771-601
Intel Celeron N3350 1.1 GHz (SC turbo up to 2.4 GHz) dual core processor (1866 MHz FSB, 2.0 MB L2
cache, 4.0 W), 4.0 GB of system memory, 128 GB of eMMC system storage, and the Windows 10
Professional operating system
L02769-601
Intel Celeron N3350 1.60 GHz (SC turbo up to 2.16 GHz) dual core processor (1866 MHz FSB, 2.0 MB L2
cache, 4.0 W), 4.0 GB of system memory, 64 GB of eMMC system storage, and the Windows 10
Professional operating system
L02768-601
Before removing the system board, follow these steps:
1. Turn o 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 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 21).
5. Remove the battery (see Battery on page 26).
6. Remove the WLAN module (see WLAN module on page 26).
7. Remove the heat sink (see Heat sink on page 28).
Remove the system board:
1. Release the ZIF connector (1) to which the display panel cable is attached, and then disconnect
the display panel cable from the system board.
2. Disconnect the power connector cable (2) from the system board.
30 Chapter 5 Removal and replacement procedures
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