System Profile | 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 the 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 | Dell |
Turbo Boost | Turbo boost allows the processor cores to automatically enhance frequency beyond the advertised processor speed. This field enables or disables the processor to operate in the turbo boost mode. | Enabled or Disabled |
C1E | Enables or disables the processor to switch to a minimum performance state when it is idle. |
Write Data CRC | Enables or disables the Write Data CRC. |
Workload Profile | Optimizes 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 turn modifies various BIOS settings to be optimized for the requested workload type. Valid values depend on the BIOS version. Note: Some telco-related settings may appear as read-only. To configure these settings, select Telco Optimized Profile as the Workload Profile. | 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 Note: Supported for HPE model DL325 only. |
CPU Power Management | Enables selection of CPU power management methodology. System DBPM (Demand-based Power Management) 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. OS DBPM 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 idled or underutilized cores to save power. Maximum Performance 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 recommended for latency-sensitive environments. | System DBPM (DAPC) OS DBPM Maximum Performance | Dell Supermicro HPE iLO Note: Supported for HPE model DL325 only. |
C States | Enables or disables the processor to operate in all available power states. Note: When set to Enabled or Autonomous, it may cause an increase in the memory latency and frequency jitter. | Enabled Disabled Autonomous |
Memory Patrol Scrub | Patrol Scrubbing searches the memory for errors and repairs any correctable errors to prevent the accumulation of memory errors. This field sets the memory patrol scrub frequency. When set to Extended, the entire memory array is scrubbed frequently to further increase system reliability. When set to Standard, the entire memory array is scrubbed once in a 24-hour period. When set to Disabled, no patrol scrubbing occurs. | Extended Standard Disabled |
Memory Refresh Rate | The memory controller periodically refreshes the data in the memory. When set to 1x, it indicates the frequency at which memory is refreshed. Use 2x when memory modules are operating at a higher than normal temperature, or to further increase system reliability. CAUTION: Setting the refresh rate to 2x may have a negative impact on the memory subsystem performance. | 1x or 2x |
Memory Frequency | Enables selection of the system memory speed. CAUTION: Reducing the memory frequency saves power but reduces performance. | Maximum Performance 3200 MHz 2933 MHz 2666 MHz 2400 MHz 2133 MHz 1866 MHz Maximum Reliability | Dell Supermicro HPE iLO |
Uncore Frequency | Enables you to select the processor Uncore Frequency. When set to Dynamic, the processor can optimize power resources across the cores and uncore during runtime. | Dynamic or Maximum | Dell |
Energy Efficient Policy | Enables you to select the energy-efficient policy. The CPU uses this setting to manipulate the internal behavior of the processor and targets higher performance or better power savings. | Performance Balanced Performance Balanced Energy Energy Efficient | Dell Supermicro |
Number of Turbo Boost Enabled Cores for Processor 1 | Controls the number of turbo boost enabled cores for the processor. This value is automatically set to All when the value provided exceeds the number of cores available in the processor. Note: You can only update this field if Turbo Boost is Enabled, and CPU Power Management is set to Max Performance. | All, 1, 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28 | Dell |
Number of Turbo Boost Enabled Cores for Processor 2 |
Monitor/Mwait | Enables or disables the Monitor/Mwait instructions in the processor. Note: This setting is a read-only field when C States are set to Enabled. | Enabled or Disabled | Dell |
CPU Interconnect Bus Link Power Management | Enables or disables the CPU Interconnect Bus Link Power Management. CAUTION: When Enabled, the CPU Interconnect Bus Link Power Management can slightly reduce the overall system power and performance. | Enabled or Disabled |
PCI ASPM L1 Link Power Management | Enables or disables the PCI Advanced State Power Management (ASPM) L1 Link Power Management. Setting to Enabled slightly reduces overall system power and performance. CAUTION: Some devices may stop responding or cause the system to stop responding when ASPM is enabled. For this reason, ASPM is enabled only for validated qualified cards. | Enabled or Disabled |
Power and System Criteria for Package C State | Enables or disables the power and system criteria for a Package C state. | Enabled or Disabled |
OS ACPI Cx | Sets the OS ACPI Cx to C2 or C3 state. | OsCxC2 OsCxC3 |
Package C State Latency Negotiation | Controls the Package C State latency negotiation when Package C States are Enabled. | Enabled or Disabled |
GPSS Timer | Allows the reduction of the GPSS timer to be set from 0-500us (typical value is 500us). | For XR11: 0us - 500us |
CPU C1 Auto Demotion | Allows the CPU core to automatically demote to lower core idle states, when enabled. | Enabled or Disabled | Dell |
CPU C1 Auto UnDemotion | Allows the CPU to automatically undemote from demoted C1 state, when enabled. |
Workload Configuration | Controls the BIOS settings for energy performance, which enables the BIOS to select a configuration that improves the performance on a specific workload. | Dependent on the workload profile selected |
CPU Interconnect Bus Speed | 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 the processors support. | Maximum Data Rate |
AC Power Recovery | 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 when AC power was lost. The system remains off if the system was turned off when AC power was lost. If an ungraceful shutdown occurs, the system always turns on.
| On Off Last | Dell HPE iLO |