NEC Express5800/R120h-2M Maintenance Manual page 96

Chapter 2 Useful Features
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Power and Performance Options Menu
When you select System Configuration > BIOS/Platform Configuration (RBSU) > Power and Performance
Options from the System Utilities, the Power and Performance Options menu appears.
For details about the options, see the table below.
Option
Power Regulator
Minimum Processor Idle
Power Core C-State
Minimum Processor Idle
Power Package C-State
Intel(R) Turbo Boost
Technology
96
Parameter
[Dynamic Power Savings Mode]
Static Low Power Mode
Static High Performance Mode
OS Control Mode
[C6 State]
C1E State
No C-states
[Package C6(retention) State]
Package C6(non-retention) State
No Package State
Disabled
[Enabled]
Express5800/R120h-1M, R120h-2M Maintenance Guide
Description
You can only configure this option if the Workload
Profile is set to Custom. Use this option to
configure the following Power Regulator support:
- Dynamic Power Savings Mode: Automatically
varies processor speed and power usage based on
processor utilization. Enables the reduction of
overall power consumption with little or no impact
on performance. Does not require OS support. -
Static Low Power Mode: Reduces processor speed
and power usage. Guarantees a lower maximum
power usage for the system. Performance impacts
are greater for environments with higher processor
utilization. - Static High Performance Mode:
Processors run in their maximum
power/performance state at all times, regardless of
the OS power management policy. - OS Control
Mode: Processors run in their maximum
power/performance state at all times unless the OS
enables a power management policy.
You can only configure this option if Workload
Profile is set to Custom. Use this option to select
the lowest idle power state (C-state) of the
processor that the operating system uses. The
higher the C-state, the lower the power usage of
that idle state. (C6 is the lowest power idle state
supported by the processor).
You can configure this option only if the Workload
Profile is set to Custom. Use this option to select
the lowest idle package power state (C-state) of the
processor. The processor automatically transitions
into package C-states based on the Core C-states
in which cores on the processor have transitioned.
The higher the package C-state, the lower the
power usage of that idle package state. (Package
C6 (retention) is the lowest power idle package
state supported by the processor).
Turbo Boost Technology enables the processor to
transition to a higher frequency
processor's rated speed if the processor has
available power and is within
specifications. Disabling this option reduces power
usage, and also reduces the system's maximum
achievable performance under some workloads.
This appears only when the processor that
supports this function is mounted. This option is
displayed only when the installed processor
supports this feature.
1. System Utilities
than the
temperature