For the past few weeks, it's been difficult to get my PC to turn on. I thought it was a faulty PSU (Original is an old Corsair AX860), I bought a new PSU to test and when I switched the cables, still no power when pressing the button. I replaced all of the old PSU cables with the new ones and still no power. I unplugged everything and tested by jumping the motherboard and it powers up that way. I then tested the power button with only the motherboard plugged in and it will power up. But when plugging anything else in, it won't power up. I'm not sure what I should replace next to see what the issue is ?
Parts list is here: https://pcpartpicker.com/list/Z2VKfv
Parts list is here: https://pcpartpicker.com/list/Z2VKfv