connecting case fans?

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seryou92

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Jun 16, 2013
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My current case is the NZXT Source 210. I have two top exhausts connected to the motherboard and a rear fan also connected to the motherboard. The reason they are connected to the motherboard is because I can only fit 3 fans on my psu connectors, so the rest have to be setup to the motherboard. At the moment I have my front, side, and bottom intake fans connected directly to my psu. Since this basically means that the intake fans are running full force all the time and the exhaust fans are being throttled at times by the motherboard, should I swap the connectors? As in having the two top exhausts directly connected to the power supply or is it pointless and the way I have it now is sufficient? If having the exhausts on full all the time will lower my temperatures even further then I'd be glad to swap the connectors around.

Any input is much appreciated.
 
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JobCreator
I would run the exhaust at 100%. That will likely help the intake fans take more in. Whereas, intake running at 100%, you may increase the pressure inside, and hot air will likely stick around too long as it's not being expelled, increasing temperature.

Also loved the Harley analogy, Chalk.
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JobCreator

JobCreator

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I, personally, don't fool with fan controls. If I were you, I'd leave them all on 100% all the time. I cringe at those that find it "too loud." A gaming machine to me is like a Harley Davidson. You want that cat to purr - and loudly. :)
 
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manofchalk

manofchalk

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May 11, 2012
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Not that fans and noise in general from my rig is "too loud", but rather "annoying". Believe it or not I'm not gaming at my machine all the time, and I'm sure if your Harley was running in the garage at all hours it would get quite annoying.

If you'v run out of motherboard headers and don't want to be limited to running them 100% by the PSU, you will need some aftermarket products to deal with that.
One option is voltage adapters to slow down the fan. They plug into the PSU, and fan plugs into them. They typically come in 10, 7 and 5v. For reference, the PSU outputs 12v, so you can get a rough idea on how much slower the fans will run.
Your other option is a dedicated fan controller, which for all intents and purposes is just the same as the voltage adapters except you have a dial which alters how much the voltage is reduced. If you plan to run multiple fans off the one channel (dial) through the use of splitters, I suggest you get a unit with at least 30W per channel.
 
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seryou92

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Jun 16, 2013
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Thanks for the replies. Let me rephrase the question a bit. If you had to choose between connecting the intake fans or exhaust fans to psu, which would you choose? The noise doesn't bother me one bit since I usually have a headset on. Call it a somewhat lazy workaround for limited psu connectors for the time being. So if running the exhaust fans on full 100% is better than intake on 100% is the question I was asking.
 
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JobCreator

JobCreator

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I would run the exhaust at 100%. That will likely help the intake fans take more in. Whereas, intake running at 100%, you may increase the pressure inside, and hot air will likely stick around too long as it's not being expelled, increasing temperature.

Also loved the Harley analogy, Chalk.
 
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