after a mobo gets hit by a Electrostatic Discharge or by a power surge (similar thing) most mobos are toast
wat i mean it 'shouldn't even boot' means everything goes on lik fans,HD, Cd-rom,led lights,etc but the boot page doesnt show (black screen where it gives u the computer info) or POST wat people call it. Resetting the CMOS is highly unlikily to solve the problem pretty much theres nothing that can fix it unless u take it a mechanic witch he/she can then diagnose the failure.
I my self just had a similar problem lik urs and my whole mother board is fried from constanly restarting my pc because of freezing.
looks lik we need to get our selves new mobo's uless theres a solution.