I bought the Asus strix B350 F yesterday and came with bios 3203 . My cpu_fan was working fine. i updated to 3401 bios and my cpu_Fan stopped working.It doesn't boot as it says CPU fan is not connected or N/A.Fan is working cause i tried CPU_Opt and its working on 2700rpm.Also my PSU is 850w so it has plenty of electricity.
So far I tried :
1)Connecting to cpu_fan and setting low RPM to 200
2)reseting cmos by removing battery or using a metal object on CLRTC
3)Downgrading bios to 0902 and 1001 but it doesnt let me downgrade
Now my pc is working as i set bios to ignore cpu_fan and setting my fan on cpu_opt. is there a problem leaving it on cpu_opt? QFan doesn't let me adjust rpm on cpu_opt.
P.S. my processor is AMD Ryzen 5 1600 with its stock wraith fan
So far I tried :
1)Connecting to cpu_fan and setting low RPM to 200
2)reseting cmos by removing battery or using a metal object on CLRTC
3)Downgrading bios to 0902 and 1001 but it doesnt let me downgrade
Now my pc is working as i set bios to ignore cpu_fan and setting my fan on cpu_opt. is there a problem leaving it on cpu_opt? QFan doesn't let me adjust rpm on cpu_opt.
P.S. my processor is AMD Ryzen 5 1600 with its stock wraith fan