Ok, so I'm new to the overclocking/core unlocking thing, and I've found myself in dire straights: as a short pre-amble; I recently bought myself a phenom ii 555 black edition cpu and a gigabyte 880gm-ud2h motherboard, alongside 8gb of ram, but I'd imagine that's less relevant, anyhow
I had a fully functioning system with stock CMOS settings, bios revision F8 for that board, but I was aware that I had the potential of unlocking a further two cores on my CPU through the CMOS, and having read various forum posts on the matter, I followed the concensus.
All I did was change 'EC Fimware' from 'normal' to 'hybrid' , and set acc to 'auto.' Upon saving changes, the expected 'updating ec firmware don't turn off the power' flashed up, before the computer powered down (fully) and then powered up again. As of this point, my pc will not clear the POST check, freezing moments after establishing a screen display; although it does recognise the CPU now as an x4 B55, it will not allow me to so much as enter the bios to reverse the change;
Being somewhat inexperienced in all this, am I missing anything obvious? Will clearing the CMOS reverse the changes that I have made? Or, more worryingly will I need to invest in a new motherboard and/or CPU?