Cpu fan error- press f1

djabs786 · 17 Jun 2011 at 18:15

Hi,
I have just built my new desktop, with the asus p8z68-v PRO motherboard. I have a 2600k with the antec kuhler h2o 620.

Upon restart, i get a error which states - " Cpu fan error - press f1 to enter bios" or something like that. Any way to stop it? or fix it?

At the moment i have no fans in the cpu fan headers, but in normal 12v fan ones. I have ordered a viper to go into the cpu fan header for PWM, will that fix it?

Thanks

FIXED

Boozebeard · 17 Jun 2011 at 18:17

I get this problem on my mobo to. I do have a fan in the CPU header but it is working perfectly fine. It says press F1 to continue so it doesn't actually get in the way, it is just an annoyance. I find it only does this from a cold boot and not if I just do a restart for some reason. I don't know of any way to fix it though.

Orcvader · 17 Jun 2011 at 20:52

I had this problem on my old Asus board too. It's just simply the fan header not giving the fan enough power at startup. I solved it with this: http://www.overclockers.co.uk/showproduct.php?prodid=CB-031-AK&groupid=1929&catid=153&subcat=

This allows the power to come from the PSU directly, while still allowing the board to control the fan speed.

djabs786 · 17 Jun 2011 at 22:21

i have the antec kuhler h2o 620, and i dont have it plugged in into the CPU FAN header. is this what is causing it?
I have it plugged into the 3 pin case fan which delivers 12v electricity to the fan.

thanks again.

gazzaman2k · 17 Jun 2011 at 22:25

go into the bios and then on the monitoring page just click ignore on the cpu fan one then it wont bother you again

momo56 · 17 Jun 2011 at 22:26

*delete*

djabs786 · 17 Jun 2011 at 22:44

I'll try that after my HDD has finished formatting - thanks if it works =D

Orcvader · 17 Jun 2011 at 22:55

djabs786 said:
i have the antec kuhler h2o 620, and i dont have it plugged in into the CPU FAN header. is this what is causing it?
I have it plugged into the 3 pin case fan which delivers 12v electricity to the fan.

thanks again.

If that's the case then I would do what gazzaman2k has suggested, assuming you have nothing connected to the CPU fan header. Leave it on the 3 pin header as the pump requires full power at all times in order for it to cool your CPU efficiently.

djabs786 · 17 Jun 2011 at 23:23

Do you think it would go away if i added a PWM fan ( akasa viper) to the cpu fan connector? Ill attach the fan to the radiator.
Thanks

Orcvader · 18 Jun 2011 at 00:50

It'll probably still appear. When I got the error I noticed the fan connected to the CPU fan header attempts to spin but fails to, then spins normally after I press F1. When I attached that PWM splitter I linked the problem disappeared.

djabs786 · 18 Jun 2011 at 13:50

FIXED - yay. I got the viper this morning plugged it into the CPU fan, and no more error! thanks for all your help

gazzaman2k · 18 Jun 2011 at 13:58

glad it sorted it

dont you find the viper a bit loud though?

maklabouhlel · 18 Jun 2011 at 15:07

Get a low voltage start up fan like noiseblocker or Zalman Shark Fin ZM-SF3.