Case fans not turning on!!

dejavu117

Honorable
Mar 25, 2013
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10,530
So, I finally got my computer build to start working but I found that the computer will not turn on if the case fans are in, and the only fan that does work is the one connected directly to the mobo. So is the problem the cord that connects all the 4 pin fans, or the fans itself shorting out. By the way I have a rosewill blackhawk case and a corsair cx600m.

Thank you
 
Solution
The led fans may pull more voltage then the fan header can handle. You should be able to with a cable plug the led fans into the power supply. The only other issue could be a dead short or cut wire on one of the fans.