CPU Fan Error ?

foster grant · 22 Nov 2013 at 09:40

OK so from time to time I'm getting "CPU Fan Error" when I boot up my system , and I have no idea why , the mobo i have is as below the...CPU Cooler I have is also as stated below I'm sure it's not the mobo as I used to get the same Error on my previous mobo ( Asus M5A99X EVO ) ....the cooler has two fans connected to the " CPU_FAN" via a Y splitter that came with the cooler i have tried different fans ...but the same error comes up , ..could it be an issue with the slitter itself ?

thanx

PiKe · 22 Nov 2013 at 09:47

Its probably just the fact the fan doesn't have an RPM sensor so the motherboard thinks its not spinning. Disable the warning in BIOS.

foster grant · 22 Nov 2013 at 09:50

Well I have set the fan monitoring to " disabled " in the BIOS , its kind of annoying though

Glanza · 22 Nov 2013 at 09:58

Tried plugging a fan directly into the header rather then using the splitter?

PiKe · 22 Nov 2013 at 09:58

Its due to the Y splitter probably.

foster grant · 22 Nov 2013 at 09:59

Giggz said:
Tried plugging a fan directly into the header rather then using the splitter?

I was thinking of doing that Giggz...but it uses two fans

foster grant · 22 Nov 2013 at 10:00

PiKe said:
Its due to the Y splitter probably.

as in it needs replacing or its just the way it is PiKe?

Glanza · 22 Nov 2013 at 10:11

foster grant said:
I was thinking of doing that Giggz...but it uses two fans

It's only for testing purposes not a fix

PiKe · 22 Nov 2013 at 10:14

foster grant said:
as in it needs replacing or its just the way it is PiKe?

As in theres no way you can combine 2 rpm sensors and have the motherboard make sense of it, do away with the splitter, plug one fan into cpu header, other one into sys header on the board.

foster grant · 22 Nov 2013 at 10:15

Giggz said:
It's only for testing purposes not a fix

Oh I see what you mean ...yes of course

...I never even though of that ...cheers

foster grant · 22 Nov 2013 at 10:20

PiKe said:
As in theres no way you can combine 2 rpm sensors and have the motherboard make sense of it, do away with the splitter, plug one fan into cpu header, other one into sys header on the board.

ok....there is on the mobo a CPU Fan Optional header just across from the main cpu fan header itself i could use that for the 2nd fan ??

Glanza · 22 Nov 2013 at 10:21

foster grant said:
ok....there is on the mobo a CPU Fan Optional header just across from the main cpu fan header itself i could use that for the 2nd fan ??

Yup that's what it's for if you have 2 fans on your cooler. Put a fan into each header and you'll probably find your issue resolves itself.

Steampunk · 22 Nov 2013 at 10:21

foster grant said:
ok....there is on the mobo a CPU Fan Optional header just across from the main cpu fan header itself i could use that for the 2nd fan ??

That's pretty much what it's for.

foster grant · 22 Nov 2013 at 10:22

OK thank you for you help guys much appreciated