Lenovo ThinkSystem SR635 V3 User Manual page 42

The following illustration shows the layout of the system board assembly which contains the firmware and
RoT security module, system I/O board, processor board, fan board and PIB board.
Figure 13. System-board-assembly layout
System I/O board
1
Processor board
3
PIB board
5
• "System-board-assembly connectors" on page 33
• "System-board-assembly switches" on page 34
• "System-board-assembly LEDs" on page 297
ThinkSystem SR635 V3 User Guide
32
Firmware and RoT security module
2
Fan board
4