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safe to run 2 fans using a Y adapter off MOBO?

post #1 of 11
Thread Starter 
Hey, Setting up my girl's pc, trying to keep it clean and simple, i would like for her sabertooth p67 to run all of her fans.
can the mobo handle 2 fans y'd into 1 connector?

Trying to do this:

dual 120mm fans on chas #2. dual 140mm off of PWM, and single 120mm chassis fan #1. also running the assist fan installed.

can the mobo handle it? or is it too much draw? thanks!
post #2 of 11
Now days I use 1x molex to 3x 7v 3 pin, but in the past I have had no problems running splitters from the motherboard headers, pretty sure it will be fine as long as you don't run Delta's off them. smile.gif
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post #3 of 11
Look at the backs of the fans you plan to daisy-chain... They should have a current rating on the sticker (It will be in Amps). Add those numbers and multiply by 12; that will give you the total power draw of the fans in Watts.

Most motherboard headers nowadays can handle 1A (12W of power draw) and there are some out there that can handle up to 3A. Just check your motherboard's manual and find the page where they talk about the fan headers; the power rating should be there.... As long as the total power draw number that you got is not higher than the headers power rating you'll be OK.
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post #4 of 11
Quote:
Originally Posted by xXSebaSXx View Post

Look at the backs of the fans you plan to daisy-chain... They should have a current rating on the sticker (It will be in Amps). Add those numbers and multiply by 12; that will give you the total power draw of the fans in Watts.
Most motherboard headers nowadays can handle 1A (12W of power draw) and there are some out there that can handle up to 3A. Just check your motherboard's manual and find the page where they talk about the fan headers; the power rating should be there.... As long as the total power draw number that you got is not higher than the headers power rating you'll be OK.

good info thumb.gif
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post #5 of 11
Thread Starter 
*facepalm* i appreciate the info vreatly! I wish i would of thought of the kanual myself so i wouldn't sound so dumb... Lol. I'll check that today, thanks everyone.
post #6 of 11
Thread Starter 
Well, i just downloaded and read the manual, the only thing it mentions is that the CPU_FAN header supports up to 1a x 12v fan. If my graphics card has an external fan connection, connect it to my CHA_FAN1 for better thermal environment. Im using corsair factory fans, the 120 & 140's. Think i'm safe? Or should i contact asus to make sure?
post #7 of 11
Er..you could use one of these..
300
 
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post #8 of 11
I've been runnin' dual push/pull CPU fans off the same motherboard connector for over a year with absolutely no problems in both my Biostar, and my Asus Sabertooth motherboards.

Cheers cheers.gif
 
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post #9 of 11
just invest in a fan controller?
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post #10 of 11
Quote:
Originally Posted by Schmuckley View Post

Er..you could use one of these..
300

Whatever that is, it would send 12v from the PSU into the graphics card header.
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