I doubt you fried it......I remember once I thought i'd fried it by doing something similar, in reality i'd just made a stupid mistake. To clear the cmos you switch the jumper for a few seconds while the pc if off, then put it back in place before tunring back on. If you leave the cmos in the clear setting and try to turn on the pc wont start. Could be you knew this, but i've done it before myself.