Fan Profile speed

Hi guys

squeaky wrote: Hi guys A real strange one for you all... I was playing with my fan profiles in bios yesterday - setting custom curves across all the different fan headers.  All seemed fine, all fans quietened and rpm knocked down to less than 1000rpm.  Did a little testing and all fan speeds responded to my changes to lower and raise speeds. Booted up from cold today - chassis fan1 and cpu1opt and both spinning at full rpm (1200) - and are ignoring all attempts at changing the speeds in bios!! Taichi X370 bios v 3.00 Any ideas?

Do you use your board's A-Tuning program in Windows? Have it set to auto-run after Windows boots?

If you do, then the A-Tuning fan configuration, whatever it is set to, will override that of the UEFI/BIOS settings.

Otherwise, that is a strange situation. So after the cold boot when the fans seemed to loose your fan speed configuration, when you checked in the UEFI again, the settings were the same as when you configured them the first time? Meaning the configuration was there, but seemingly ignored?

I assume you were using the FAN-Tastic Tuning option in the UEFI? Normally when you configure fan headers with it, you are prompted to save the changes when you exit or change to a different fan header. But you saved your changes before exiting FAN-Tastic Tuning?

The difference between 1200RPM and "less than 1000RPM" is not that much, so something like an increase in the CPU temperature could cause the fans to spin faster.

Did you happen to run the Fan Tuning feature, after you used FAN-Tastic Tuning? Fan Tuning runs a test on your fans and sets the fan speed curves depending upon your fan's characteristics. But you said nothing seemed to allow you to change the fan speeds after that one cold boot, so that is odd.

If you tried a different memory OC that failed, the UEFI will reset your memory settings to stock/default values to let the PC boot. But that should not change the fan settings, so I don't know what happened.

Maybe you had some UEFI corruption if nothing else explains the situation. I suggest updating from version 3.00 to 3.10 or 3.20, since 3.10 introduced additional temperature configuration options for each header, which provides more accurate fan speed control. Please use the Instant Flash update method, it is the most reliable.

http://www.asrock.com/mb/AMD/X370%20Taichi/index.asp#BIOS