Fujitsu PRIMERGY TX1310 M1 Upgrade And Maintenance Manual page 232

Appendix
V
CAUTION!
Since the system fan 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!
232 Upgrade and Maintenance Manual
TX1310 M1