procPwrPerf | Enables selection of CPU power management methodology. SysDbpm uses a BIOS-controlled dynamic frequency manipulation scheme. This saves power across various utilization levels as part of the Dell Advanced Power Control (DAPC) capability. OsDbpm is a performance-per-watt option that relies on the operating system to dynamically control individual core frequency. Both Windows and Linux can take advantage of this mode to reduce frequency of idle or underused cores to save power. MaxPerf is typically selected for performance-centric workloads where it is acceptable to consume additional power to achieve the highest possible performance for the computing environment. This mode drives processor frequency to the maximum across all cores and is always preferred for latency-sensitive environments. Note: - To set this attribute to MaxPerf for HPE iLO, you must first set
WorkloadProfile to one of the following values: - HpcProfile
- LowLatencyOptimizedProfile
- VtOptimizedProfile
- SdsOptimizedProfile
- SdsPerWattOptimizedProfile
- To set this attribute to OsDbpm for HPE iLO, you must first set
WorkloadProfile to one of the following values: - VtPerWattOptimizedProfile
- TelcoOptimizedProfile
- TelcoProfile
- WriteOnly
| SysDbpm, OsDbpm, or MaxPerf | Dell, Supermicro, HPE iLO: Supported for HPE DL325 Gen 10 Plus only |
memFrequency | Enables selection of the system memory speed. Note: You can save more power by reducing the memory frequency, at the expense of reduced performance. | MaxPerf, 3200 MHz 2933 MHz, 2666 MHz 2400 MHz 2133 MHz 1866 MHz MaxReliability | Dell, Supermicro, HPE iLO |
procTurboMode | Enables or disables processor turbo boost mode. Turbo boost allows the processor cores to automatically enhance frequency beyond the advertised processor speed. | Enabled or Disabled | Dell |
procC1E | Enables or disables the processor to switch to a minimum performance state when it is idle. | Enabled or Disabled |
procCStates | Enables or disables the processor to operate in all available power states. Note: - When set to Enabled or Autonomous, memory latency and frequency jitter may increase.
- To enable this attribute or set to Autonomous for HPE iLO, you must first set
WorkloadProfile to one of the following attributes: - VtPerWattOptimizedProfile
- TelcoOptimizedProfile
- TelcoProfile
- WriteOnly
- To disable this attribute for HPE iLO, you must first set the
WorkloadProfile to one of the following attributes: - HpcProfile
- LowLatencyOptimizedProfile
- VtOptimizedProfile
| Enabled Disabled Autonomous | Dell, HPE iLO: Supported for HPE DL325 Gen 10 Plus only |
writeDataCrc | Enables or disables the Write Data CRC. | Enabled or Disabled | Dell |
memPatrolScrub | Sets the memory patrol scrub frequency. Patrol scrubbing searches the memory for errors and then repairs correctable errors, which prevents memory errors from accumulating. Note: - Set to Extended to frequently scrub the entire memory array to further increase system reliability.
- Set to Standard to scrub the entire memory array once in a 24-hour period.
- Set to Disabled to stop patrol scrubbing.
- To set this attribute to Disabled for HPE iLO, you must first set
WorkloadProfile to LowLatencyOptimizedProfile. | Extended, Standard, or Disabled | Dell, HPE iLO: Supported for HPE DL325 Gen 10 Plus only |
memRefreshRate | The memory controller periodically refreshes the data in the memory. Set to 1x to indicate the frequency at which memory is refreshed. Set to 2x to increase system reliability or when memory modules are operating at a higher than normal temperature. Note: - To set this attribute to 1x or 2x for HPE iLO, you must first set
WorkloadProfile to one of the following values: - HpcProfile
- LowLatencyOptimizedProfile
- SdsOptimizedProfile
- SdsPerWattOptimizedProfile
CAUTION: Setting the refresh rate to 2x may have a negative impact on the memory subsystem performance. | 1x or 2x | Dell, Supermicro, HPE iLO: Supported for HPE DL325 Gen 10 Plus only |
uncoreFrequency | Enables selection of the Processor Uncore Frequency. Set to DynamicUFS to allow the processor to optimize power resources across the cores and uncore during runtime. | DynamicUFS or MaxUFS | Dell |
energyPerformanceBias | Enables selection of the energy-efficient policy. The CPU uses this setting to manipulate internal processor behavior and determines whether to target higher performance or better power savings. | MaxPower BalancedPerformance BalancedEfficiency LowPower | Dell, Supermicro |
proc1TurboCoreNum | Controls the number of turbo boost enabled cores for the Processor. Note: - Set ProcTurboMode to Enabled and ProcPwrPerf to MaxPerf on the server before updating this field.
- If this field value is greater than the number of available processor cores, the value gets automatically set to All instead of the given value.
| All, 1, 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28 | Dell |
proc2TurboCoreNum |
monitorMwait | Enables or disables the Monitor/Mwait instructions in the processor. Note: This is a read-only field when ProcCStates is set to Enabled. | Enabled or Disabled |
cpuInterconnectBusLinkPower | Enables or disables the CPU Interconnect Bus Link Power Management. CAUTION: If this is Enabled, the CPU Interconnect Bus Link Power Management can reduce the overall system power and performance slightly. |
CpuInterconnectBusSpeed | Sets the frequency of the communication links among the CPUs in the system. Maximum Data Rate indicates that the BIOS runs the communication links at the maximum frequency that is supported by the processors. | Maximum Data Rate | Dell, Supermicro |
pcieAspmL1 | Enables or disables the PCI Advanced State Power Management (ASPM) L1 Link Power Management. If this is Enabled, it may slightly reduce overall system power and performance. Note: Some devices may become unresponsive or cause the system to become unresponsive when ASPM is enabled. For this reason, ASPM is only enabled for validated qualified cards. | Enabled or Disabled | Dell |
OsAcpiCX | Sets the OS ACPI Cx to C2 or C3 state. This field is read-only on BIOS versions previous to 1.6.5. From BIOS version 1.6.5 onwards, this field can be edited on PowerEdge XR11 and R750 server models when enabled. To enable this attribute, you must first set the WorkloadProfile attribute value to TelcoOptimizedProfile. | OsCxC2 or OsCxC3 |
ProcessorGpssTimer | Allows the reduction of the GPSS timer to be set from 0-500us (typical value is 500us). This field is read-only on BIOS versions previous to 1.6.5. From BIOS version 1.6.5 onwards, this field can be edited on PowerEdge XR11 and R750 server models when enabled. To enable this attribute, you must first set the WorkloadProfile attribute value to TelcoOptimizedProfile. | For XR11: 0us - 500us |
ProcessorC1AutoDemotion | Allows the CPU core to automatically demote to lower core idle states, when enabled. This field is read-only on BIOS versions previous to 1.6.5. From BIOS version 1.6.5 onwards, this field can be edited on PowerEdge XR11 and R750 server models when enabled. To enable this attribute, you must first set the WorkloadProfile attribute value to TelcoOptimizedProfile. | Enabled or Disabled | Dell |
ProcessorC1AutoUnDemotion | Allows the CPU to automatically undemote from demoted C1 state, when enabled. This field is read-only on BIOS versions previous to 1.6.5. From BIOS version 1.6.5 onwards, this field can be edited on PowerEdge XR11 and R750 server models when enabled. To enable this attribute, you must first set the WorkloadProfile attribute value to TelcoOptimizedProfile. | Enabled or Disabled |
DynamicL1 | This field only applies to the package level setting to allow dynamic entering lower power link state L1. This field is read-only on BIOS versions previous to 1.6.5. From BIOS version 1.6.5 onwards, this field can be edited on PowerEdge XR11 and R750 server models when enabled. To enable this attribute, you must first set the WorkloadProfile attribute value to TelcoOptimizedProfile. | Enabled or Disabled |
PackageCStates | Enables or disables the package to transition to deeper C-states or limit to operational state. This field is read-only on BIOS versions previous to 1.6.5. From BIOS version 1.6.5 onwards, this field can be edited on PowerEdge XR11 and R750 server models when enabled. To enable this attribute, you must first set the WorkloadProfile attribute value to TelcoOptimizedProfile. | Enabled or Disabled |
SysProfile | Sets the System Profile to Performance Per Watt (DAPC), Performance Per Watt (OS), Performance, Workstation Performance, or Custom mode. When set to a mode other than Custom, BIOS sets each option accordingly. When set to Custom, you can change setting of each option. Under Custom mode when C state is enabled, Monitor/Mwait should also be enabled. | Performance Per Watt (DAPC) Performance Per Watt (OS) Performance Workstation Performance Custom |
WorkloadProfile | Allows optimization of performance that is based on the workload type. The Workload Profile setting is not a 'state'. Setting a workload profile is a one-time action that in turns modifies various BIOS settings to be optimized for the requested workload type. | Not Configured HPC Profile Low Latency Optimized Profile Virtualization Optimized Performance Profile Virtualization Optimized Performance Per Watt Profile DataBase Optimized Performance Profile Database Optimized Performance Per Watt Profile SDS Optimized Performance Profile SDS Optimized Performance Per Watt Profile Telco Optimized Profile | Dell, HPE iLO: Supported for HPE DL325 Gen 10 Plus only |
WorkloadConfiguration | Controls the BIAS settings for energy performance, which enables the BIOS to select a configuration that improves the performance on a specific workload. This field is read-only on BIOS versions previous to 1.6.5. From BIOS version 1.6.5 onwards, this field can be edited on PowerEdge XR11 and R750 server models when enabled. To enable this attribute, you must first set the WorkloadProfile attribute value to TelcoOptimizedProfile. | Dependent on the Workload Profile selected. | Dell |
AcPwrRcvry | Controls the system behavior after a power failure event. - Set to On for the system to turn on after AC power is restored.
- Set to Off for the system to stay off after AC power is restored.
- Set to Last for the system to turn on if the system was on at the moment when AC power was lost. The system remains off if the system was turned off when AC power was lost. In the case of an ungraceful shutdown, the system always turns on.
| On Off Last | Dell, HPE iLO |
PkgCLatNeg | Controls the Package C State latency negotiation when Package C States are Enabled. Note: This attribute is read-only and cannot be edited. | Enabled or Disabled | Dell |
EnablePkgcCriteria | Enables or disables the power and system criteria for a Package C state Note: This attribute is read-only and cannot be edited. | Enabled or Disabled |
SystemModelName | Displays the product name of the system. Note: This attribute is read-only and cannot be edited. | For example: PowerEdge XR12 |
SystemBiosVersion | Displays the current version of the BIOS firmware. Note: This attribute is read-only and cannot be edited. | For example: 1.3.8 |
SystemMeVersion | Displays the current version of the Management Engine (ME) firmware. Note: This attribute is read-only and cannot be edited. | For example: 4.3.2.11 - 0x9V5 |
SystemServiceTag | Displays the Service Tag of a system, which is a unique identifier assigned by the Original Equipment Manufacturer (OEM). Note: This attribute is read-only and cannot be edited. | For example: 1AWBCMR3 |
SystemManufacturer | Displays the name of the Original Equipment Manufacturer (OEM). Note: This attribute is read-only and cannot be edited. | For example: Dell Inc |
SysMfrContactInfo | Displays the contact information of the Original Equipment Manufacturer (OEM). Note: This attribute is read-only and cannot be edited. | For example: www.dell.com |
SystemCpldVersion | Displays the current firmware version of the CPLD. Note: This attribute is read-only and cannot be edited. | For example: 1.0.2 |
UefiComplianceVersion | Displays the UEFI compliance level of the system firmware. Note: This attribute is read-only and cannot be edited. | For example: 2.7 |
SysMemSize | Displays the amount of main memory in the system. Note: This attribute is read-only and cannot be edited. | For example: 128 GB |
SysMemType | Displays the type of main memory installed in the system. Note: This attribute is read-only and cannot be edited. | For example: ECC DDR4 |
SysMemSpeed | Displays the clock frequency of the main memory. Note: This attribute is read-only and cannot be edited. | For example: 3200 MT/s |