Higher idle frequency than before

[Lasse15]

Hi,

I'm encountering an issue with my Proxmox host's CPU. It appears to be clocking much higher than it was about a month ago (and therefore the power consumption is also higher), which I believe is a result of a recent kernel upgrade to version 5.15.83-1-pve.
Previously, the idle frequency was between 400MHz and 1GHz, however, it's now consistently at least 1.4GHz (the new minimum hardware limit) and frequently exceeds 1.8GHz (even without any VMs/CTs up).

I've also tried upgrading to kernel version 5.15.85-1-pve and rebooting, but the frequency remains the same. Additionally, I haven't made any BIOS upgrades in the past 3 months.

Do you have any suggestions as to why the frequency is higher now and how I can bring it back down to its previous state?

Output of cpupower frequency-info:

# cpupower frequency-info
analyzing CPU 0:
  driver: acpi-cpufreq
  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: 1.40 GHz - 4.67 GHz
  available frequency steps:  3.80 GHz, 1.70 GHz, 1.40 GHz
  available cpufreq governors: conservative ondemand userspace powersave performance schedutil
  current policy: frequency should be within 1.40 GHz and 3.80 GHz.
                  The governor "ondemand" may decide which speed to use
                  within this range.
  current CPU frequency: 1.40 GHz (asserted by call to hardware)
  boost state support:
    Supported: yes
    Active: no
    Boost States: 0
    Total States: 3
    Pstate-P0:  1000MHz
    Pstate-P1:  2700MHz
    Pstate-P2:  2500MHz

Hardware:
CPU: AMD Ryzen 7 Pro 5750G
Memory: 1x Miron 32GB 3200MHz ECC unbuffered
Motherboard: Asus Prime B550 Plus
Main storage: 2x 1TB WD NVME 3.0 mirrored


Thanks in advance!