Dell EMC E39S Series Installation And Service Manual page 63

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. 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.
C States Enables or disables the processor to operate in all available power states. This option is set to Disabled by default
for performance profile and is set to Enabled by default for all other profiles.
Write Data CRC Enables or disables the Write Data CRC. This option is set to Disabled by default.
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 cores and uncores 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. This option is set to Balanced Performance by default.
Number of Turbo
Boost Enabled
Cores for
Processor 1 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.
CPU Interconnect Enables or disables the CPU Interconnect Bus Link Power Management. This option is set to Enabled by default.
Bus Link Power
Management
PCI ASPM L1 Link Enables or disables the PCI ASPM L1 Link Power Management. This option is set to Enabled by default.
Power
Management
Intel Persistent Controls the tuning recipe for Quality of Service (QoS) knobs. Disabled by default. Method 1 is recommended
Memory CR QoS for 2-2-2 memory configurations in App-Direct. Method 2 is recommended for other memory configurations in
App-Direct. Method 3 is recommended for 1 DIMM per channel configurations.
Intel Persistent Controls the thresholds that trigger switching between near (RDIMM/LRDIMM) and far (DCPMM) memory. BW
Memory Optimized, selected by default, optimizes for RDIMM/LRDIMM and DCPMM bandwidth. Latency Optimized
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 four processors installed in the system, you will see an entry for Number of
Turbo Boost Enabled Cores for Processor 4.
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 63