Originally Posted by dioxholster
i think i may go for a 140mm fan since thats what my case accepts, do you guys think i need PWM? im not too sure what it is, all i know is that im connecting the fans to a fan controller that is built in the case and straight to power supply. The other fans that i dont care about controlling their speed i can just connect them to motherboard.
does this have pwm? http://www.scythe-usa.com/product/acc/111/sm1425sl12_detail.html
Those fans are not PWM. PWM is the four pin connection, which plug into the four pin headers on the MoBo. PWM fans are usually for CPU heat sinks because the voltages can be automatically controlled by the MoBo depending on the heat of the CPU. Those fans are 3 Pin fans, which is fine for a case fan and can be plugged into the four pin spots on the MoBo as well.
Have you thought about getting a fan controller? It may not be a bad idea with that case since most MoBo's do not have enough headers and when fans are plugged into the PSU they just run at 100%. I know there is software out there for controlling fans, but I have not been able to find any that I like.Edited by boxwunder13 - 2/14/13 at 11:49am