HP ROM-Based Setup Utility - Manual (Page 167)

Ultra Low Power State
Ultra Low Power State enables the system to transition to the lowest processor power state when
the Power Regulator Mode is configured for HP Static Low Power Mode or HP Dynamic Power
Savings Mode. In HP Static Low Power Mode, power savings increases with a small impact on
maximum system performance. HP Dynamic Power Savings Mode increases power savings when
processor utilization is low.
Ultra Low Power State is supported only on HP ProLiant servers with AMD processors.
System Options menu 167