Only 1 cpu fan header

JJimmyJ

JJimmyJ

JJimmyJ

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Joined
21 Jan 2010
Posts
573
Hello

I think I know the answer, but want to check.
I have a new mobo gigabyte ga-z77-3dh. I have a dual rad with 2 apache's. How do I set it up so they run in pwm mode. I have one attached to the cpu header, but the other is in a sys fan header. In the bios only the cpu one can be controlled by the cpu temp, the sys fans are based on system temp. How can I get both running off cpu temp?
I've looked at easytune and it looks a bit naff as again it won't let me set system fans based on cpu temp.
My case (arc midi 2) does have a fan controller so I could hook them up to that, but I like my big 140 fans to run off that rather than the mobo.
Any suggestions?

Thanks
 
You can also use speedfan instead, although they are plugged into separate headers, you can specify in speedfan which core on the CPU you want to control which fan, its only easytune that sets the system fan to the system temp, its a pain I know, ive often thought that Gigabyte need to put an option into easytune which allows you to manually choose which temp you want any fan header to monitor.

A lot of people forget about this setting in speedfan, and I admit it can be a pain to set up, but once its done its worth it, you can have any fan plugged into any header on the board and tell speedfan to control it with the CPU temp, as long of course as speedfan can see the fan.

In the image you can see the noctua fan is controlled by core 0, I can then set another fan on a different header to be controlled by core 1's temp, then another to be controlled by core 2 and so on, the graph points which you can adjust are the speed you want the fan running at, so I have it running approx. 50% all the way until that core hits approx. 56oC and at that point it starts to speed up until it reaches 75oC where the fan is at 100%.

That whole advanced fan control section needs to be manually set up.

 
Last edited:
Hi Jamin
I've used speedfan before and didn't really get on with it, kept stopping my cpu fans for some reason. That was an old board though so may try it again. I've seen a little guide on this very forum.
I stupidly didn't realise that my cases fan controller is only for 3 pin :(
I'll try speedfan and failing that just get a nice splitter.

Thanks
 
4 pin fans will work on a 3 pin controller but there may be some connector modification required to get it to fit.
 
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