Motherboard not working

diabjason4

Commendable
Sep 18, 2017
9
0
1,520
So I am building a new PC and my PSU works with my old motherboard but not my new one. When I plug in the 24pin into the new motherboard my gtx 1080s don't turn on nor does anything. But when I plug in the 24 pin in the old 20 pin slot by detaching 4 pins every thing turns on. Any ideas on how to fix this
 

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