4 pin harness plugged in I have no video unplug and fans run bur no video

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mattk
mattk Member Posts: 1 New User

I installed this board with a new raidmax RX-450K power supply in a bigger case. The issue is my moniter scans and  does not find a signal. I plugged the 4 pin atx connector in and does not power up no fans at all. When I unplug the 4 pin harness, it powers up, CPU, case, and power supply fans run, no video. Moniter is good and I am using the mother board video connector. I did install a video card in an attempt to bypass the on board video but no luck.

HELP!!!