Sign in with
Sign up | Sign in
Your question

4 pin fan connectors/3 pin fan plugs

Last response: in Systems
Share
February 5, 2013 6:44:07 PM

My mobo
http://www.newegg.com/Product/Product.aspx?Item=N82E168...

I am buying this Mobo and the Rosewill Thor V2 case. my question is what do I need to hook the 4x 3 pin fans into the 4x 4 pin optional fan connectors on my mobo. There are 2x 3pin assist fan connectors which I intended on using for the two fans I add on later.

up top I said 4x 4 pin fans into the 4x3 pin connectors,, one of those actually needs to be a chassis fan , which plug do I need for that???
February 5, 2013 7:09:30 PM

you can just plug a 3 pin connector into a 4 pin header . The 4th pin is to control the speed , so without it the FANs will just run at full speed and not respond to temperature
m
0
l
February 5, 2013 7:28:29 PM

Simple enu. sorry to waist space one here lol!
m
0
l
February 5, 2013 7:31:13 PM

The 4th pin is actually to manage a fan via PWM, which is different than voltage control. A 3 pin fan is still capable of slowing down or speeding up by the system. It does it by lowering voltage of the fan from 12v down, where as a PWM fan works with a constant 12v source and a separate control voltage (usually under a volt) on the 4th wire that helps the fan determine the speed.

It will depend on the MB, but many 3 pin fans can be controlled for speed.
m
0
l
!