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System board assembly replacement (trained technician only)

Follow instructions in this section to remove and install the system board assembly.

  • This task must be operated by trained technicians that are certified by Lenovo Service. Do no attempt to remove or install it without proper training and qualification.

  • If you need to replace a processor board and a firmware and RoT security module together, do the following:

The following illustration shows the layout of the system board assembly that contains the system I/O board, firmware and RoT security module, fan board, power inverter board (PIB) and processor board.

Figure 1. System-board-assembly layout
System-board-assembly layout

1 System I/O board2 Firmware and RoT security module3 Processor board
4 Fan board5 Power inverter board (PIB) 

For the installation and replacement of the fan board and the PIB board, see Fan board replacement and Power inverter board (PIB) replacement.