Fujitsu PRIMERGY TX1330 M4 Upgrade And Maintenance Manual page 285

▶
"Switching on the server" on page
When a system fan module fails, the remaining fans will start
operating at full speed. After the defective fan module has been
replaced, all fans will continue to run at full speed for a couple of
minutes, before resetting to a lower speed.
Ensure that all system fans reset to a normal operating speed.
▶
"Performing a fan test" on page
TX1330 M4
81.
130.
Upgrade and Maintenance Manual
Fans
285