Dell EMC PowerEdge T440 Installation And Service Manual page 59
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- Installation and service manual (115 pages) ,
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Option
Description
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.
Collaborative CPU
Enables or disables the CPU power management option. When set to Enabled, the CPU power management is
Performance
controlled by the OS DBPM and the System DBPM (DAPC). This option is set to Disabled by default.
Control
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.
Energy Efficient
Enables you to select the Energy Efficient Policy option.
Policy
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
Controls the number of turbo boost enabled cores for Processor 1. The maximum number of cores is enabled 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.
CPU Interconnect
Enables or disables the CPU Interconnect Bus Link Power Management. This option is set to Enabled by default.
Bus Link Power
Management
PCI ASPM L1 Link
Enables or disables the PCI ASPM L1 Link Power Management. This option is set to Enabled by default.
Power
Management
NOTE:
If there are two processors installed in the system, you will see an entry for Number of Turbo
Boost Enabled Cores for Processor 2.
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.
Dell EMC PowerEdge T440 Installation and Service Manual
Pre-operating system management applications
59
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