Supermicro X13SCD-F User Manual page 62

Super X13SCD-F User's Manual
Power Limit 2 Power
Use this feature to configure Package Power Limit 2 in milliwatts or milli-percents. For
example, to set Power Limit 2 Power to 12%, enter 12000. The BIOS will round to the
nearest 1/8 W or 1/8%. Enter 0 for no custom override. This setting will act as the new
Power Limit 2 Power value for the Package running average power limit (RAPL) algorithm.
The RAPL algorithm attempts to limit power spikes that go above this limit. When this value
is set to 0, the Power Limit 2 Power will default to PACKAGE_POWER_SKU_MSR. The
default setting is 0.
Power Limit 3 Override
Use this feature to enable or disable Platform Power Limit 3 (PsysPL3) override. When this
feature is set to Enabled, Power Limit 3, Power Limit 3 Time Window, Power Limit 3 Duty
Cycle, and Power Limit 3 Lock can be configured. The options are Disabled and Enabled.
Power Limit 3 (Available when Power Limit 3 Override is enabled)
Use this feature to configure Package Power Limit 3 in milliwatts or milli-percents. For
example, to set Power Limit 2 Power to 12%, enter 12000. The BIOS will round to the
nearest 1/8 W or 1/8%. Enter 0 for no custom override. For XE SKUs, this value may be
set up to Psys Pmax. For Overclocking SKUs, this value must be between Max and Min
Power Limits defined by PACKAGE_POWER_SKU_MSR. For any other SKUs, this value
must be between Min Power Limit and the Processor Base Power (TDP). If this value is
0, the default hardware value will be used. The default setting is 0.
Power Limit 3 Time Window (Available when Power Limit 3 Override is enabled)
Use this feature to set the Power Limit 3 Time Window value in milliseconds. This value
defines how long Power Limit 3 may be exceeded. The CPU throttles to remain under Power
Limit 3 when the duration set by Power Limit 3 Time Window is exceeded. This value may
be between 3 and 64. Set this feature to 0 to use the default value for this processor. The
default setting is 0. For ATX12V0 PSU systems, the recommended value is 40.
Power Limit 3 Duty Cycle (Available when Power Limit 3 Override is enabled)
Use this feature to set the duty cycle that the processor maintains during the Power Limit 3
Time Window. The value can be between 0 and 100. The default setting is 0. For ATX12V0
PSU system, the recommended value is 25.
Power Limit 3 Lock (Available when Power Limit 3 Override is enabled)
Use this feature to enable or disable the ability to change Power Limit 3 configurations
during OS. When this feature is disabled, Power Limit 3 configurations can be changed
during OS. The default setting is Disabled.
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