This maybe a stupid question, but I currently have a rear chassis fan with a molex plugin hooked directly to my psu, running at full speed, but I have a 4 pin rear fan plugin open on my mobo still. My psu came with a molex to 4 pin adaptor and I tried using it when I had upgraded my psu but when plugged in my computer wont boot which makes me think its dangerously wrong... Is there a way to connect it to my mobo for fan speed control or is the fan incompatible?
Any input is appreciated!
