HP BIOS update broke CPU management badly

[ismatov]

After getting BIOS update F36, BIOS disabled access for Operating systems to utilize CPU properly. Windows has to use its outdated drivers to manage CPU which is very inefficient. The same thing is happening with Linux, amd_pstate driver, which heavily relies on CPPC to function is not working at all. Everything was fine until this update. The update's notes say that "Enhanced security", but it didn't enhance security, but broke the most essential functionality. I don't know whether HP releases another BIOS update to fix it. I wrote a lot of feedback about it. BIOS rollback or modifying the needed settings is impossible.

[Max3Aj]

@ismatov, Welcome to HP Support Community. 
 
Thank you for posting your query, I will be glad to help you. 
 

Here's a step-by-step guide to address the issue:

BIOS Rollback (If Possible)

You mentioned rollback is currently blocked. However, you can try the following workaround:

BIOS Recovery via USB

1. Download the previous BIOS version (if available) from the HP support site.
2. Use the HP BIOS Recovery Tool to create a recovery USB:
   • Guide: HP BIOS Recovery from USB
3. Plug in the USB, power off the laptop, then hold Win + B and press the power button for 2–3 seconds.
4. Release the keys and follow on-screen instructions.

If rollback is locked in the firmware, this method may not work. In that case, proceed to the next step.

Reset BIOS Settings to Default

Sometimes, security settings introduced in BIOS updates can interfere with CPU features like CPPC.

• Restart your laptop and press F10 to enter BIOS.
• Look for an option like "Restore Defaults" or "Load Setup Defaults".
• Save and exit.

Temporary Workarounds

Until HP releases a fix:

• On Windows, try using ThrottleStop or QuickCPU to manually manage CPU performance.
• On Linux, switch to the acpi-cpufreq driver if amd_pstate is broken:

  sudo grubby --update-kernel=ALL --args="amd_pstate=disable"

I hope this helps. 
 
Take care and have a good day. 
 
Please click “Accepted Solution” if you feel my post solved your issue, it will help others find the solution. Click the “Yes" on the bottom left to say “Thanks” for helping! 
 
Max3Aj
HP Support