Have you tried removing the CPU, powering up without one in, then putting your dualie in again? This clears the CMOS, and I assume might help it prep for another cpu... I had a similar problem recently where after swapping my GFX card from the 8x PCIe slot to the 16x one, my CPU kept hitting 100°C and shutting off, after checking voltages all were actually normal, even after loading a pre-saved profile, but CPU was deinitely reaching that temp judging by how quickly the liquid heated up. Doing the aforementioned solved it though. It didn't half scre me though, but no real damage done I think...