Fujitsu PRIMERGY GX2560 M7 Upgrade And Maintenance Manual page 324

Appendix A
CAUTION
▶
Since the fan module is not included in the minimum startup
configuration, the server must be shut down immediately after the
diagnostic process is complete (POST phase has been passed).
▶
The minimum startup configuration must be used exclusively for
diagnostic purposes by maintenance personnel, never in daily
operation!
324 Upgrade and Maintenance Manual GX2560 M7