Power Regulator
When Power Profile is set to Custom, use this option to set the power regulator mode. Power regulator
settings can help you increase server efficiency and manage power consumption. Dynamic Power Savings
Mode automatically varies processor speed and power usage based on processor utilization.
NOTE:
Certain processors support only one power state and operate at their initialized frequency, regardless of the
selected Power Regulator mode.
Setting the Power Regulator mode
Prerequisite
Power Profile is set to Custom.
Procedure
1. From the System Utilities screen, select System Configuration > BIOS/Platform Configuration
(RBSU) > Power Management > Power Regulator and press Enter.
2. Select a setting and press Enter.
a. Dynamic Power Savings Mode—Automatically varies processor speed and power usage based on
processor utilization. This mode uses an ROM-based algorithm to monitor processor activity. It can
reduce overall power consumption with little or no impact to performance, and does not require OS
support.
b. Static Low Power Mode—Reduces processor speed and power usage. Guarantees a lower maximum
power usage for the system. This mode is useful in environments where power availability is
constrained and it is critical to lower the maximum power use of the system.
c. Static High Performance Mode—Processors run in the maximum power and performance state,
regardless of the OS power management policy. This mode is useful in environments where
performance is critical and power consumption is less important.
d. OS Control Mode—Processors run in their maximum power and performance state at all times, unless
the OS enables a power management policy.
3. Press F10.
Minimum Processor Idle Power Core C-State
When the Power Profile is set to Custom, use this option to select the lowest idle power (C-State) of the
processor that the operating system uses. The higher the C-State, the lower the power usage of that idle
state. .
Setting the minimum processor idle power core C-State
Prerequisite
Power Profile is set to Custom.
78 Power Regulator