- Notes, cautions, and warnings
- Pre-operating system management applications
- Options to manage the pre-operating system applications
- System Setup
- Viewing System Setup
- System Setup details
- System BIOS
- Viewing System BIOS
- System BIOS Settings details
- System Information
- Viewing System Information
- System Information details
- Memory Settings
- Viewing Memory Settings
- Memory Settings details
- Processor Settings
- Viewing Processor Settings
- Processor Settings details
- SATA Settings
- Viewing SATA Settings
- SATA Settings details
- NVMe Settings
- Viewing NVMe Settings
- NVMe Settings details
- Boot Settings
- Viewing Boot Settings
- Boot Settings details
- Choosing system boot mode
- Changing boot order
- Network Settings
- Viewing Network Settings
- Network Settings screen details
- Integrated Devices
- Viewing Integrated Devices
- Integrated Devices details
- Serial Communication
- Viewing Serial Communication
- Serial Communication details
- System Profile Settings
- Viewing System Profile Settings
- System Profile Settings details
- System Security
- Viewing System Security
- System Security Settings details
- Creating a system and setup password
- Using your system password to secure the system
- Deleting or changing system and setup password
- Operating with setup password enabled
- Redundant OS Control
- Viewing Redundant OS Control
- Redundant OS Control screen details
- Miscellaneous Settings
- Viewing Miscellaneous Settings
- Miscellaneous Settings details
- iDRAC Settings utility
- Device Settings
- Dell Lifecycle Controller
- Boot Manager
- PXE boot
Dell PowerEdge R940 BIOS and UEFI Reference Guide
System Profile Settings details
About this task
- 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.
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. 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 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 All 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 Link Power Management
- Enables or disables the CPU Interconnect Bus Link Power Management. This option is set to Enabled by default.
- PCI ASPM L1 Link Power Management
- Enables or disables the PCI ASPM L1 Link Power Management. This option is set to Enabled by default.
- Intel Persistent Memory CR QoS
- Controls the tuning recipe for Quality of Service (QoS) knobs. Disabled by default. Method 1 is recommended 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 Memory Performance Setting
- Controls the thresholds that trigger switching between near (RDIMM/LRDIMM) and far (PMem) memory. BW Optimized, selected by default, optimizes for RDIMM/LRDIMM and PMem bandwidth. Latency Optimized offers better RDIMM/LRDIMM latency in the presence of PMem. Balanced Profile optimizes performance with Memory Mode configured PMem.
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