Need some simple help please. System Fan or Fan #1?

mrneil001

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Oct 7, 2009
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Hello all, had a quick question. I have a DFI motherboard which has the following inputs for fans:

CPU fan
System fan
1st fan
2nd fan
3rd fan
Fan 3

I know the CPU fan is for my CPU cooler.

Now Im hooking up 2 fans to my case, and possibly a third side one later. The front one is a 120mm and the rear is a 92mm. All of the fans list as sense/power/ground(except for the CPU fan). Which one should I plug them up to or does it not matter?

Thanks.