Fujitsu PRIMERGY RX300 S8 Upgrade And Maintenance Manual page 364

Front panel and external connectors
Figure 230: Disconnecting front panel cables
Ê If applicable, disconnect the front LAN board from the system board:
Press in on the locking latch on the front LAN board holder (1) and pull the
front LAN board holder with the front LAN board out of its socket (2).
364 Upgrade and Maintenance Manual
RX300 S8