Lenovo D400 Desktop IdeaCentre - Manual (Page 52)

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Hardware Maintenance Manual
Replacing the system board
To replace the system board
1. Remove the cover. Refer to “Removing the cover”.
2. Remove the front bezel. Refer to “Replacing the front bezel”.
3. Remove the fan. Refer to “Removing the fan”.
4. Remove the memory module. Refer to “Replacing the memory module”.
5. Remove the power supply. Refer to “Replacing the power supply”.
6. Remove the backplane bracket.
(1) Detach the four SATA cables from the system board.