Dell E43S Series Installation And Service Manual page 40

System Profile Settings
You can use the System Profile Settings screen to enable specific system performance settings such as power management.
Viewing System Profile Settings
To view the System Profile Settings screen, perform the following steps:
1 Turn on, or restart your system.
2 Press F2 immediately after you see the following message:
F2 = System Setup
NOTE: If your operating system begins to load before you press F2, wait for the system to finish booting, and then restart
your system and try again.
3 On the System Setup Main Menu screen, click System BIOS.
4 On the System BIOS screen, click System Profile Settings.
System Profile Settings details
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 Per Watt (HWPM), Performance, and Workstation
Performance.
CPU Power Sets the CPU power management. This option is set to System DBPM (DAPC) by default. DBPM is Demand-
Management Based Power Management. Other options include OS DBPM, Maximum Performance, and Hardware P States.
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 Enabled 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 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.
40 Pre-operating system management applications
NOTE: All the parameters on the system profile setting screen are available only when the System Profile
option is set to Custom.