I have a Maximus V Formula motherboard that has been working fine. All of a sudden one day it stopped booting at all, I didn't make any recent changes nor have I even had the side panel off in the past few weeks. It would turn on for a few seconds and then turn off, turn back on for a few seconds, then turn off, and just do this repeatedly. No Qcode, no beeps, not anything. So performed the following troubleshooting tasks... I removed all the addin cards, left 1 stick of ram in it ... same result So I took the motherboard out of the case and on my workbench, tried a different psu ... same result swapped the cpu with one in another system I had, I have a Maximus V Gene as well ... same result Tried the flashback bios thing, it seemed to do its thing fine, but still the same issue. Even tried removing the CPU, and memory to see if I could get a different result, but nope same result.