https://photos.app.goo.gl/gZym5NDViibjm9dA7I think its something to do with not having a PCI 8 to change to Gen2. I unplugged the 8th and all 7 were fine. So I used the cables from 7th to number 8 and it loaded up 7 gpu 100%. I added a power supply and it went back to the same issue 7 at 100% and 8th at 0%