Can someone help me understand these CPU power options in my bios? X9DA7 mobo

[Kilgore23]

Hello I have an X9DA7 motherboard by Supermicro and would to know more about these cpu options. I have read the descriptions in the manual but was hoping for more information or an understanding of them in easier terms or layman's terms.

Ultimately I am trying to achieve this rig so that the cpus are not being limited, so they may operate many virtual machines to their full potential

P-STATE Coordination

This feature selects the type of coordination for the P-State of the processor.
P-State is a processor operational state that reduces the processor's voltage
and frequency. This makes the processor more energy efficient, resulting in
further gains. The options are HW_ALL, SW_ALL and SW_ANY.

CPU C3 Report (Available when Power Technology is set to Custom)

Select Enabled to allow the BIOS to report the CPU C3 State (ACPI C2) to
the operating system. During the CPU C3 State, the CPU clock generator is
turned off. The options are Enabled and Disabled.

CPU C6 Report (Available when Power Technology is set to Custom)

Select Enabled to allow the BIOS to report the CPU C6 State (ACPI C3) to
the operating system. During the CPU C6 State, the power to all cache is
turned off. The options are Enabled and Disabled.

CPU C7 Report (Available when Power Technology is set to Custom)

Select Enabled to allow the BIOS to report the CPU C7 State (ACPI C3) to
the operating system. CPU C7 State is a processor-specific low C-State. The
options are Enabled and Disabled.

Package C State Limit


If set to Auto, the AMI BIOS will automatically set the limit on the C-State
package register. The options are C0, C2, C6, and No Limit.

Thank you for taking the time to read the post, any help is much appreciated

 

[know of fence]

G is for global, C is for Core and P is for power.

The reduced combination of voltage and frequency that Intel Speedstep is using are referred to as P-states. This is used to save power during operation.

But the cores can also be shut off and get 0 Voltage and enter various C-states when idle. C3 saves the CPU core state to L3 cache, while C6 saves it to RAM, C1 is a core at lowest clock, and C0 is normal operation.

Package state is the overall status off all cores, it will reflect the state of the deepest "sleep" core. If one core is at C6 package state is C6.

I'd say enabling all power saving states, creates the biggest thermal headroom and opportunity for for frequent and high turbo, but who knows...
You can read the chapter (4.2) Power management in the Intel documentation Datasheet for your particular CPU-family, if you want to know more.