Dell E31S Series Owner's Manual page 49

System Profile Settings details
About this task
The System Profile Settings screen details are explained as follows:
Option Description
System Profile Sets the system profile. If you set the System Profile option to a mode other than Custom, the BIOS
automatically sets the rest of the options. You can only change the rest of the options if the mode is set to
Custom. This option is set to Performance Per Watt Optimized (DAPC) by default. DAPC is Dell Active
Power Controller.
CPU Power Sets the CPU power management. This option is set to System DBPM (DAPC) by default. DBPM is Demand-
Management Based Power Management.
Memory Sets the speed of the system memory. You can select Maximum Performance, Maximum Reliability, or a
Frequency specific speed.
Turbo Boost Enables or disables the processor to operate in the turbo boost mode. This option is set to Enabled by default.
Energy Efficient Enables or disables the Energy Efficient Turbo option.
Turbo
Energy Efficient Turbo (EET) is a mode of operation where a processor's core frequency is adjusted to be within
the turbo range based on workload.
C1E Enables or disables the processor to switch to a minimum performance state when it is idle. This option is set to
Enabled by default.
C States Enables or disables the processor to operate in all available power states. This option is set to Enabled by default.
Collaborative CPU Enables or disables the CPU power management option. When set to Enabled, the CPU power management is
Performance controlled by the OS DBPM and the System DBPM (DAPC). This option is set to Disabled by default.
Control
Memory Patrol Sets the memory patrol scrub frequency. This option is set to Standard by default.
Scrub
Memory Refresh Sets the memory refresh rate to either 1x or 2x. This option is set to 1x by default.
Rate
Uncore Frequency Enables you to select the Processor Uncore Frequency option.
Dynamic mode enables the processor to optimize power resources across the cores and uncore during runtime.
The optimization of the uncore frequency to either save power or optimize performance is influenced by the
setting of the Energy Efficiency Policy option.
Energy Efficient Enables you to select the Energy Efficient Policy option.
Policy
The CPU uses the setting to manipulate the internal behavior of the processor and determines whether to target
higher performance or better power savings.
Number of Turbo
Boot Enabled
Cores for
Controls the number of turbo boost enabled cores for processor 1. The maximum number of cores is enabled by
Processor 1
default.
Monitor/Mwait Enables the Monitor/Mwait instructions in the processor. This option is set to Enabled for all system profiles,
except Custom by default.
NOTE: All the parameters on the system profile setting screen are available only when the System
Profile option is set to Custom.
NOTE: If there are two processors installed in the system, you see an entry for Number of Turbo
Boost Enabled Cores for Processor 2.
NOTE: This option can be disabled only if the C States option in the Custom mode is set to
disabled.
NOTE: When C States is set to Enabled in the Custom mode, changing the Monitor/Mwait setting
does not impact the system power or performance.
Pre-operating system management applications 49