If only it were that simple.
Red is used for 12v on video card fans.
Examples found here
http://www.directron.com/vichfa.html

As well as on 12v fan adapters.
x10msy.jpg
 

If you mod it that way you will be running 5v.
Yellow [ from molex ] to red [ on fan ] will give you 12v, look at the adapter that I posted again.
 

bobalazs

Distinguished
Apr 2, 2010
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Well i modded my card, but seems the juice is not enough, the temps slowly but do keep rising.
I put it back on 12v since 7v is not enough.
but then again, its loud.