I have recently had problems with my new PC build. The RGB fans that came with the case (Sahara P75) aren't working as I needed a molex cable. I purchased a molex cable and plugged it into the psu and the fan controller that came with the case but it doesn't work. When I turn my PC back on the LEDs in the fan turn on for a milli second but my PC switches off. I don't want to fry my PSU so any ideas that could help would be appreciated!