Reference Guide

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 (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. Other options include OS DBPM, and Maximum Performance.
Memory
Frequency
Sets the speed of the system memory. You can select Maximum Performance, Maximum Reliability,
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 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
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 two processors installed in the system, you will see an entry for Number of
Turbo Boost Enabled Cores for Processor 2.
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
Enables or disables the CPU Interconnect Bus Link Power Management. This option is set to Enabled by
default.
18 Pre-operating system management applications