Reference Guide

Has a dependency on the System Profile. Can only be set if the System Profile is set to Custom. Is set to
Enabled if the System Profile is set to Performance Per Watt (DAPC), Performance Per Watt (OS),
Performance Per Watt (HWPM), or Dense. Is set to Disabled if the System Profile is set to Performance.
Legal Values
● Disabled
● Enabled
● Autonomous
Default Value Not Applicable
Write Privilege Server Control
License Required iDRAC Express or iDRAC Enterprise
Dependency Not applicable
BIOS.SysProfileSettings.ProcPwrPerf (Read or Write)
Description
Allows selection of CPU power management methodology. System DBPM (Demand-based Power
Management) utilizes a BIOS-controlled dynamic frequency manipulation scheme to save power across a
variety of utilization levels as part of the Dell Advanced Power Control (DAPC) capability. The power
saving features of this option typically are greatest at mid-to-lower processor utilization levels. Maximum
Performance is typically selected for performance-centric workloads where it is acceptable to consume
additional power to achieve the highest possible performance for the computing environment. This mode
drives processor frequency to the maximum across all cores (although idled cores can still be frequency
reduced by C-state enforcement through BIOS or OS mechanisms if enabled). This mode also offers the
lowest latency of the CPU Power Management Mode options, so is always preferred for latency-sensitive
environments. OS DBPM is another performance-per-watt option that relies on the operating system to
dynamically control individual core frequency. Both Windows and Linux can take advantage of this mode
to reduce frequency of idled or underutilized cores in order to save power. Read-only unless System
Profile is set to Custom.
Has a dependency on the System Profile. Can only be set if the System Profile is set to Custom.
Legal Values
● MaxPerf
● MinPwr
● SysDbpm
● OsDbpm
● HwpDbpm
Default Value Not Applicable
Write Privilege Server Control
License Required iDRAC Express or iDRAC Enterprise
Dependency Not applicable
BIOS.SysProfileSettings.ProcTurboMode (Read or Write)
Description
Governs the Intel Turbo Boost Technology. This feature allows the processor cores to be automatically
clocked up in frequency beyond the advertised processor speed. The amount of increased frequency (or
'turbo upside') one can expect from a Xeon processor depends on the processor model, thermal
limitations of the operating environment, and in some cases power consumption. In general terms, the
fewer cores being exercised with work the higher the potential turbo upside. The potential drawbacks for
Turbo Boost are mainly centered on increased power consumption and possible frequency jitter than can
affect a small minority of latency-sensitive environments. Read-only unless System Profile is set to
Custom.
Has a dependency on the System Profile. Can only be set if the System Profile is set to Custom. Is set to
Enabled if the System Profile is set to Performance Per Watt (DAPC), Performance Per Watt (OS),
Performance Per Watt (HWPM), or Performance. Is set to Disabled if the System Profile is set to Dense.
BIOS Attributes 343