Fujitsu PRIMERGY RX2450 M1 Upgrade And Maintenance Manual page 59

Basic hardware procedures
Figure 29: Bracket guide pins
▶ Ensure that the two bracket guide pins match the CSE slot.
Figure 30: AOC golden finger and system board guide pin
▶ Ensure that the AOC golden finger matches the system board slot (1).
▶ Ensure that the system board guide pin matches the bracket hold (2).
Figure 31: Position of the lock (see circle)
RX2450 M1 Upgrade and Maintenance Manual 59