I recently acquired a used Supermicro SuperServer 6027AX-TRF-HFT3 (with 2x E5-2687W v2). It has been working pretty well so far, however I noticed one thing. No matter what I do, it does not seem to be able to downclock in idle or turbo up under use. I have enabled EIST and Turbo in the BIOS, and disabled the option of overriding OS power management. I have also enabled all C and P states I could find options for. HyperSpeed is set to all "Auto", which was the only option for it to not overclock the CPU.
The output of cpupower is as follows
# cpupower frequency-info
analyzing CPU 0:
driver: intel_pstate
CPUs which run at the same hardware frequency: 0
CPUs which need to have their frequency coordinated by software: 0
maximum transition latency: Cannot determine or is not supported.
hardware limits: 1.20 GHz - 4.00 GHz
available cpufreq governors: performance powersave
current policy: frequency should be within 1.20 GHz and 4.00 GHz.
The governor "powersave" may decide which speed to use
within this range.
current CPU frequency: Unable to call hardware
current CPU frequency: 3.40 GHz (asserted by call to kernel)
boost state support:
Supported: yes
Active: yes
3700 MHz max turbo 4 active cores
3800 MHz max turbo 3 active cores
3900 MHz max turbo 2 active cores
4000 MHz max turbo 1 active cores
Trying to disable the pstate driver and using the ACPI legacy just yields in hardware limit: 3.40 GHz - 3.40 GHz
so then it doesn't even show what clocks it can do anymore.
First attempt energy saving settings