Fujitsu PRIMERGY BX600 S3 Service Supplement Manual page 29

Replacement routines
To install the basic unit in the rack cabinet, follow the above procedure in
reverse. When putting the system in operation again, you must observe the
following instruction.
V
CAUTION!
Make sure that the basic unit is connected to the mains for at least one
minute before pressing the power ON/OFF button to switch the system
ON.
Service Supplement
Preparation
29