Dell PowerEdge R830 Owners Manual - Page 57

Boost Enabled Cores for Processor 2, Performance Per Watt Optimized DAPC

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Option System Profile Description 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 Memory Frequency Turbo Boost Energy Efficient Turbo Sets the CPU power management. This option is set to System DBPM (DAPC) by default. Sets the speed of the memory. You can select Maximum Performance, Maximum Reliability, or a specific speed. Enables or disables the processor to operate in the turbo boost mode. This option is set to Enabled by default. Enables or disables the Energy Efficient Turbo option. Energy Efficient Turbo (EET) is a mode of operation where a processor's core frequency is adjusted to be within the turbo range based on workload. C1E C States Collaborative CPU Performance Control Memory Patrol Scrub Memory Refresh Rate Uncore Frequency Enables or disables the processor to switch to a minimum performance state when it is idle. This option is set to Enabled by default. Enables or disables the processor to operate in all available power states. This option is set to Enabled by default. Enables or disables the CPU power management option. When set to Enabled, the CPU power management is controlled by the OS DBPM and the System DBPM (DAPC). This option is set to Disabled by default. Sets the memory patrol scrub frequency. This option is set to Standard by default. Sets the memory refresh rate to either 1x or 2x. This option is set to 1x by default. 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 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. Number of Turbo Boot Enabled Cores for Processor 1 NOTE: If there are two processors installed in the system, you see an entry for Number of Turbo Boost Enabled Cores for Processor 2. 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. 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. Related references System Profile Settings on page 56 Pre-operating system management applications 57

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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.
Memory
Frequency
Sets the speed of the memory. You can select
Maximum Performance
,
Maximum Reliability
, or a
specific speed.
Turbo Boost
Enables or disables the processor to operate in the turbo boost mode. This option is set to
Enabled
by
default.
Energy Efficient
Turbo
Enables or disables the
Energy Efficient Turbo
option.
Energy Efficient Turbo (EET) is a mode of operation where a processor’s core frequency is adjusted to be
within the turbo range based on workload.
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.
Collaborative
CPU
Performance
Control
Enables or disables the CPU power management option. When set to
Enabled
, the CPU power
management is controlled by the OS DBPM and the System DBPM (DAPC). 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 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
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.
Number of Turbo
Boot Enabled
Cores for
Processor 1
NOTE:
If there are two processors installed in the system, you see an entry for
Number of Turbo
Boost Enabled Cores for Processor 2
.
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.
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.
Related references
System Profile Settings
on page 56
Pre-operating system management applications
57