|Visible damage to a motherboard is a tip-of-the-iceberg thing. That is there's going to be a lot of damage you can't see. The IC components on the motherboard run at very low current. If you increase the current they're ruined long before they start smoking.|
If you're just experimenting to see if you can do it, well good luck. But if you're trying to get it going, check ebay for a motherboard or even the entire computer.
Real men don't use AntiVirus; they just reformat