• Guest, The rules for the P & N subforum have been updated to prohibit "ad hominem" or personal attacks against other posters. See the full details in the post "Politics and News Rules & Guidelines."

Question cpu fan error every single boot

master1g

Junior Member
Jan 18, 2019
5
0
6
I just recently installed my new system with:
asus sog strix-f x370 mobo
gtx 1080ti
ryzen 7 2700x
500gb 3dnand WD SSD
2x8gb patriot viper 3000
750watt gold psu antec

For some reason every time I restart my computer I get "cpu fan error." Then I'm forced to go into bios and click my ssd to boot my computer EVEN WITH my SSD as the only option in the priority list. I've tried ignoring / disabling this retarded Qfan thing and nothing works. Anyone have any idea how to fix this?
 

master1g

Junior Member
Jan 18, 2019
5
0
6
Ok so I figured it out on my own. I had never seen this before on a motherboard so it was new to me. I looked closely near the cpu and it read this on the fan headers. CPU_OPT, CPU_FAN, CPU_AIO I hilariously only tried both AIO and OPT when it was giving me the error. Then after reading the header I plugged my cpu fan into CPU_FAN, now I no longer get the error. I'm not sure if disabling all Qfan options in bios helped, but I'm not turning them back on as my fans still look to be running just fine.
 

Furious_Styles

Senior member
Jan 17, 2019
300
94
71
Ok so I figured it out on my own. I had never seen this before on a motherboard so it was new to me. I looked closely near the cpu and it read this on the fan headers. CPU_OPT, CPU_FAN, CPU_AIO I hilariously only tried both AIO and OPT when it was giving me the error. Then after reading the header I plugged my cpu fan into CPU_FAN, now I no longer get the error. I'm not sure if disabling all Qfan options in bios helped, but I'm not turning them back on as my fans still look to be running just fine.
I've seen some boards do that, seems mostly an Asus thing though. You should be A-Okay to turn q-fan back on.
 

VirtualLarry

No Lifer
Aug 25, 2001
50,897
6,313
126
Yeah, this was an issue back in the day, with old-school Abit Core2/S775 boards. If there wasn't an RPM signal on the CPU_FAN header, like 3s after bootup, the BIOS would initiate a shutdown, as a failsafe.
 

ASK THE COMMUNITY