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-   -   3 fans on 1 fan header safe? (http://www.hardwarecanucks.com/forum/air-cooling/54113-3-fans-1-fan-header-safe.html)

Pabz0r545 May 9, 2012 02:04 PM

3 fans on 1 fan header safe?
Is it safe to use 3 fans on 1 fan header using a 3 way splitter? Is there any risk in doing so?

ilya May 9, 2012 02:26 PM

Check the motherboard specs for how much power the header can deliver and calculate how much your 3 fans will consume.

voltage(V) x current(A) = watts(W)

Pabz0r545 May 9, 2012 02:37 PM

I'm not sure how much power it can deliver. The manual says "The fan power connectors support system cooling fans with +12V."

Where can I find out exactly how much it can deliver?

ilya May 9, 2012 02:49 PM

You could try customer support if none of the manuals on the manufacturer's website has anything. Fan header specs aren't listed in any sort of standardized manner, even when it's two boards manufactured by the same company. (with the exception of Intel branded boards)

If it's your CPU fan header, those are typically capable of over 25W - there shouldn't be any issues if you use one of those.

Pabz0r545 May 9, 2012 03:10 PM

Ok Maybe I will try email msi customer support.

I did have the fans running off one of the fan headers and nothing happened but I read a post on here about a guy who's fan header burnt out or something and it kind of scared me so I since unplugged it. I will go ahead and connect it to the cpu fan header once I actually get my radiator set up.

SugarJ May 9, 2012 03:27 PM

Most mobo fan headers are designed for 1 amp. That's 12 watts. If your fans draw more than that, get a splitter board like the Bitspower X-station.

Pabz0r545 May 9, 2012 04:03 PM

I have 3 Gentle Typhoon AP 15's I am trying to power off 1 thing. I have no clue how many watts they use.

Masteroderus May 9, 2012 04:07 PM

0.083A is what the D1225C12B5AP-15 AKA GT AP-15 draws. I know my mobo can handle it, but I don't know anything about yours, what type is it?

It's a small power draw btw (~.3A).

Pabz0r545 May 9, 2012 04:10 PM

The motherboard is an MSI Z77A-GD65.

ilya May 9, 2012 05:15 PM

You won't ever have to worry about power consumption with AP-15's, regardless of how much the motherboard manufacturer cut costs.

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