I am in luck: the CPU has survived. It was a PCIe cap that was failing. Between 2nd PCIe 16x slot and PCI are 2 16v caps. 1 solid cap has almost blown out. Just my bad luck. It actually try's to start.
I tested the first sample briefly (4790k). So far at 2c/2t, it boots XP at 1.27v fine after a delide.
Not sure if it can do lower and what pi 32M does after deliding.
So thanks
Free up