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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) bydefault. DAPC is Dell Active
Power Controller.
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
,
Maximum Reliability
, or a
specific speed.
Turbo Boost Enables or disables the processor to operate in the turbo boost mode. This option is set to Enabledby
default.
Energy Efficient
Turbo
Enables or disables the Energy Efficient Turbo option.
Energy Efficient Turbo (EET) is amode of operation where a processor’s core frequency is adjusted to be
within theturbo range based on workload.
C1E Enables or disables the processor to switch to aminimum performance state whenit is idle. This option is
setto Enabledbydefault.
C States Enables or disables the processor to operate in all available powerstates. Thisoption is set to Enabledby
default.
Collaborative CPU
Performance
Control
Memory Patrol
Scrub
Memory Refresh
Rate
Enables or disables the CPU power management option. When set to Enabled, the CPU power
management is controlled bythe OS DBPM andthe System DBPM (DAPC). This option is set to Disabled
by default.
Sets the memory patrol scrub frequency. This option is set to Standard by default.
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.
Number of Turbo
Boot Enabled Cores
for Processor 1
NOTE: If there are two processors installed in the system, you see an entry for Number of Turbo
Boost Enabled Cores for Processor 2.
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 Enabledfor 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.
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