My miner is randomly turning completely off. Kernal Power error 41

So here's the situation. 5 GPU (2 570, 3 580) with a 1000w corsair HX1000i

Machine has been running great for the past 5 months. Swapped out a 580 that a friend wanted with a 470. Hard drive crashed, so i got my backup files and reinstalled windows ect. Saved the config file for Overdriven so i have the same clocks and everything. Even when running WITHOUT the new gpu (so 4 cards pulling 600 from the wall), it will crash and give me the kernal power error. The only difference between software in the old install and the new install is I used radeon adrenaline 18.12 instead of 18.9. Could the new driver be the problem? When the computer does restart, i get the radeon warning that default settings have been applied to the GPUS. Even with the overclock, I am getting 0 memory errors in hwinfo. I'm HOPING the answer is to DDU and go back to 18.9, but are there any other reasons ya'll can think of? Is there a way to see which gpu is causing the crash?