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Air Flow and Pin Header Question

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  • Heatsinks
  • Overclocking
Last response: in Overclocking
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September 16, 2012 8:31:24 PM

Two Questions.

1. Will this air flow work? I have a Zalman Z9 Plus Case.

1 Front,1 Top, as the Intake
1 Side panel, 1 Back,as the Exhaust

All Fans are 120mm

2. Is it possible to plug in a 3 pin fan into the 4 pin cpu fan connection on the mobo?

Thanks for all the help

More about : air flow pin header question

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a b K Overclocking
September 16, 2012 11:29:11 PM

1) I would go with the front and sides as intakes and the back and top as exhaust.

2) With many (if not most) motherboards, the answer is yes. My Gigabyte board could auto-detect that the fan was a three-pin and control it with voltage, but there may be boards that require you to manually "tell" it what kind of fan you have plugged into the CPU fan header. (I used 4-pin fans for my Asus, so I never tested the 3 vs 4 pin question with it)

My Gigabyte referred to the different control methods as "PWM" (4-pin) and "voltage" (3-pin)
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a c 138 K Overclocking
September 18, 2012 3:30:38 AM

You want to have an air flow inside the case and with your choice there would not be a flow. You need to set the fans as Zinonly suggested.
If you look closely at the fan headers on the motherboard the four pin ones especialy you'll notice that the flat plastic piece is more to one side and that is to accomodate a three pin connector. So the four pin connectors on the motherboard are designed to have a three pin connector plugged into it.
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September 25, 2012 2:36:51 AM

Best answer selected by iceandele.
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