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Can a motherboard power 4 case fans + CPU fan?

post #1 of 6
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I know its silly, but I see most people use PSU to power their fans but Im trying to have less cables around.
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post #2 of 6
Well theres the mobo headers, and to that ends the power is being routed through the mobo to the fans, however, it is ultimately the PSU providing the rectified DC power for everything... the move away from the mobo headers comes more from those headers typically being a little mickey mouse for high end fans, and as such, just something else to fail on a mobo causing an rma... best way around this is good cable management with a quality case... and moving away from air if at all possible, or rigging fans to the panels and around the case edges rather than through it loose.
 
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post #3 of 6
Mobo fan headers can also be really useful if you want to use the mobos fan control. While it usually isnt all that great, especially compared to a stand alone fan controller, I' ve found them to be really helpful at times
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post #4 of 6
1 mobo header can power approx. a 1 Amp fan or two fans that are rated at less than 1 Amp total. I run two fans off two of my mobo headers, so you should have no problem. Just make sure the fans are not over .5 Amp each.
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post #5 of 6
Quote:
Originally Posted by Sheyster View Post
1 mobo header can power approx. a 1 Amp fan or two fans that are rated at less than 1 Amp total. I run two fans off two of my mobo headers, so you should have no problem. Just make sure the fans are not over .5 Amp each.
I too run 2 fans off of one fan header. Sythe 1200 rom slipstreams. They are rated at .26amp each. Make sure you check your manual before you assume that it will support 1 amp though, just to make sure. Also, try not to tuse a full 1 amp if using multiple fans. I;ve heard about start up voltage spikes. Maybe Im just repeating hear say, but..
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post #6 of 6
Thread Starter 
Quote:
Originally Posted by Soggysilicon View Post
or rigging fans to the panels and around the case edges rather than through it loose.
Dont understand that part. I have enough headers, I dont have experience to know, in the past I used PSU directly but its a little hard for cable management. If I were to use the PSU again, it wont be for all fans. Whats the popular thing to do? You say mobo can fail when using those headers, did that happen before? I use the case's fans along with an extra silent one. Im not really interested in fan control right now. Maybe for the front fan.
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