Can I wire 2 fans to ONE fan port???

[PC_Dude]

This is probably a simple question but i dont wanna mess something up. My logic board has 2 case fan outputs. The little 3 prong plugs (or maybe 2 prongs), anyway, I have 4 case fans I wanna use. Is there enough voltage coming from thoses ports for 2 12v fans??? Or should I be wiring them straight to the power supply?

Thanks,

john

[cloasters]

Welcome to AOA Forums, PC_Dude! The 3-Pin fan riser's on mainboards can't handle much Wattage. To be absolutely safe, I limit fans plugged into the 3-Pin mobo fan riser's to 2.16 Watts.

As this is the power used by a 27 cfm 60mm YSTech CPU fan, any case fan that draws this much power has to be a very wussed(and near useless) fan. Therefore, I plug all my case fans into the Main Power "daisy-chain."

[robbie]

You beat me to it cloasters.
Welcome PC_Dude to our little neck of the web. As cloasters pointed out you don't really want to draw too much power from your fan headers on the MOBO. It's always best to wire them to the power supply.

And after all that, check out our Folding @ Home section. We NEED YOUR spare cpu cycles.

Rob

[The Spyder]

What type of board do you have? On y abit at7 max- it has 5 fan headers~ and im running 2x 80mm enermax fans, 1x 120mm enermax fan, and 60mm delta 38- Havent blow it out yet-

Spyder

[robbie]

Humm........ perhaps the MOBO manufacs are thinking of things like this and giving the headers MORE POWER!?!?!?!?

Rob

[PC_Dude]

Great! I sorta figured but wanted to make sure. I think I will wire one to the MOBO just to monitor it.

Thanks for your help.

ps. glad to be here

[robbie]

Glad to you have you.
Rob

[Holst]

Originally posted by PC_Dude
Great! I sorta figured but wanted to make sure. I think I will wire one to the MOBO just to monitor it.

Thanks for your help.

ps. glad to be here

What you can do is cut the black and red wires from the plug and wire them to the PSU and keep the blue/yellow wire plugged into the header for RPM monitoring, that way you can monitor RPM and use any wattage of fan. (obviously you can only monitor one fan per header)

[cloasters]

There are now fancy adapter's that remove the need for splicing and dicing your fan's wires when you want the fan to run from Main Power, yet simultaneously monitor the fan's RPM from a mainboard 3-Pin fan riser. 2cooltek and probably many other etailer's offer these ~$3 adapter's.

[dod]

Found a link to show how some other guy did
it like Holst was saying.

http://www.modding.net/article.asp?ArticleID=8