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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.Other options include Performance Per Watt (OS) , Performance , and Workstation
Performance .
NOTE: All the parameters on the system profile setting screen are available only when the System
Profile option is set to Custom.
CPU Power
Management Sets the CPU power management. This option is set to System DBPM (DAPC) by default. DBPM is Demand-
Based Power Management.
Memory
Frequency Sets the speed of the system memory. You can select Maximum Performance or a specific speed. This option is
set to Maximum Performance by default.
Turbo Boost Enables or disables the processor to operate in the turbo boost mode. This option is set to Enabled by default.
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.
Write Data CRC Enables or disables the Write Data CRC. This option is set to Disabled by default.
Memory Patrol
Scrub Sets the memory patrol scrub frequency. This option is set to Standard by default.
Memory Refresh
Rate Sets the memory refresh rate to either 1x or 2x. This option is set to 1x by default.
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
Policy Enables you to select the Energy Efficient Policy option.
The CPU uses the setting to manipulate the internal behavior of the processor and determines whether to target
higher performance or better power savings. This option is set to
Balanced Performance by default.
Number of Turbo
Boost Enabled
Cores for
Processor 1
NOTE: If there are four processors installed in the system, you will see an entry for Number of
Turbo Boost Enabled Cores for Processor 4.
Controls the number of turbo boost enabled cores for Processor 1. The maximum number of cores is enabled by
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: 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.
CPU Interconnect
Bus Link Power
Management Enables or disables the CPU Interconnect Bus Link Power Management. This option is set to Enabled by default.
PCI ASPM L1 Link
Power
Management Enables or disables the PCI ASPM L1 Link Power Management. This option is set to Enabled by default.
Pre-operating system management applications 37