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3 pin fan onto a 4 pin mobo plug?

K

kcbass

Golden Member
I just bought a new 120 mm fan to go on my thermalright sp-128 for my cpu, and the stock intel cooler has 4 pins connecting to the cpu_fan plug on my mobo...my 120 mm fan only has 3, so which do i leave unconnected? Can anyone link me to a pinout of the stock intel heatsink so I know if I have to rewire anything? 
 
If you just look closely at the mobo connector and your new fan connector you'll see there is only one way they can go together w/o forcing. Don't make things more difficult than they have to be...

.bh.
 
omg...i do have an asus board. yay. Asus p5b deluxe.

Oh, and Zep, I haven't actually taken the mobo out of the box yet, i just noticed that the intel stock fan has 4 conductors, and the one I will be using has three, so I just wanted to make sure.
 
Sorry to hijack, does this mean if I buy an Asus P5B Deluxe and use a Scythe S-FLEX 120mm fan on my heatsink and plug it into the MB header I can control the RPM with Speedfan?
 
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