Owners Manual

Menu Item 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. By default, the System Profile option is set to Performance Per Watt Optimized
(DAPC). DAPC is Dell Active Power Controller.
NOTE: The following parameters are available only when the System Profile is set to Custom.
CPU Power
Management
Sets the CPU power management. By default, the CPU Power Management option is set to System
DBPM (DAPC). DBPM is Demand-Based Power Management.
Turbo Boost Enables or disables the processor to operate in turbo boost mode. By default, the Turbo Boost option is
set to Enabled.
Energy Efficient
Turbo
Enables or disables the Energy Efficient Turbo.
Energy Efficient Turbo (EET) is a mode of operation where a processor’s core frequency is adjusted
within the turbo range based on workload.
C1E Enables or disables the processor to switch to a minimum performance state when it is idle. By default,
the C1E option is set to Enabled.
C States Enables or disables the processor to operate in all available power states. By default, the C States option
is set to Enabled.
Memory DDR
Freq Limit
Max performance is enabled.
Collaborative
CPU
Performance
Control
Enables or disables the CPU power management. When set to Enabled, the CPU power management is
controlled by the OS DBPM and the System DBPM (DAPC). By default, the option is set to Disabled.
Memory Patrol
Scrub
Sets the memory patrol scrub frequency. By default, the Memory Patrol Scrub option is set to
Standard.
Memory Refresh
Rate
Sets the memory refresh rate to either 1x or 2x. By default, the Memory Refresh Rate option is set to
1x.
Uncore
Frequency
Selects the Processor Uncore Frequency.
Dynamic mode allows 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.
Energy Efficient
Policy
Selects the Energy Efficient 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 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. By default, the maximum number of
cores is enabled.
Number of
Turbo Boot
Enabled Cores
for Processor 2
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. By default, the maximum number of
cores is enabled.
Monitor/Mwait Enables the Monitor/Mwait instructions in the processor. By default, the Monitor/Mwait option is set to
Enabled for all system profiles, except Custom.
NOTE: This option can be disabled only if the C States option in Custom mode is disabled.
NOTE: When C States is enabled in Custom mode, changing the Monitor/Mwait setting does not
impact system power/performance.
114 System Setup