Did you change the Windows setting, as well as the BIOS setting?
Quote from -
https://www.ghacks.net/2013/04/18/try-changing-hpet-settings-to-improve-your-pcs-performance/
Try changing HPET settings to improve your PC's performance
by
Martin Brinkmann on April 18, 2013 in
Windows - Last Update: April 18, 2013 -
16 comments
The High Precision Event Timer (HPET) is a hardware timer that has been developed by Intel and Microsoft and used in PC chipsets for nearly a decade. Different timers may be used depending on which operating system you have installed on your PC, and tweaking the timers may improve the overall performance of your PC as a result. This is mostly useful for gaming related activities and other real-time activities that tax the system a lot.
The first thing that you need to find out is if HPET is supported by your system. You need to go into the BIOS or UEFI setup during boot to find out. Since there are that many different versions out there it is hard to say where you will find the setting on your system. I found the setting under Advanced Mode > Advanced > PCH Configuration > High Precision Timer.
Enabling or disabling the timer in BIOS is only one part of the change that you have to make though. Windows may use different timers as said earlier even if the HPET timer is enabled in the BIOS.
You need to run the following commands on the command line in Windows to enable or disable the exclusive use of the HPET timer.
- Tap on the Windows-key, enter cmd, right-click cmd.exe in the results listing and select to run the command prompt with administrative privileges.
- To enable HPET as the only timer run the command bcdedit /set useplatformclock true
- To disable HPET in Windows run the command bcdedit /deletevalue useplatformclock