BIOS Parameters by Server Model

Advanced BIOS Parameters for C420 Servers

Name

Description

Intel Turbo Boost Technology

Whether the processor uses Intel Turbo Boost Technology,

 

which allows the processor to automatically increase its

 

frequency if it is running below power, temperature, or voltage

 

specifications. This can be one of the following:

 

DisabledThe processor does not increase its frequency

 

 

automatically.

 

EnabledThe processor utilizes Turbo Boost Technology

 

 

if required.

 

Note

must be set to Custom or the server ignores the setting

 

 

for this parameter.

Processor Power State C6

Whether the BIOS sends the C6 report to the operating system.

 

When the OS receives the report, it can transition the processor

 

into the lower C6 power state to decrease energy usage while

 

maintaining optimal processor performance. This can be one of

 

the following:

 

DisabledThe BIOS does not send the C6 report.

 

EnabledThe BIOS sends the C6 report, allowing the

 

 

OS to transition the processor to the C6 low power state.

 

Note

must be set to Custom or the server ignores the setting

 

 

for this parameter.

Processor Power State C1 Enhanced

Whether the CPU transitions to its minimum frequency when

 

entering the C1 state. This can be one of the following:

DisabledThe CPU continues to run at its maximum frequency in C1 state.

EnabledThe CPU transitions to its minimum frequency. This option saves the maximum amount of power in C1 state.

Frequency Floor Override

Whether the CPU is allowed to drop below the maximum

 

non-turbo frequency when idle. This can be one of the following:

 

DisabledThe CPU can drop below the maximum

 

non-turbo frequency when idle. This option decreases

 

power consumption but may reduce system performance.

 

EnabledThe CPU cannot drop below the maximum

 

non-turbo frequency when idle. This option improves

 

system performance but may increase power consumption.

 

Cisco UCS C-Series Servers Integrated Management Controller CLI Configuration Guide, Release 1.5

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