Originally posted here by Und3ertak3r

Fact of life with MOBO's.. they are multi layered ..ie there are wire traces in between the top and bottom of the PCB.. that is you have trace layers 3, 4 or more between the 2 visable layers on the top and bottom.. the surface damage may be fine ..but you may have shorted a pair or more of the sub layer traces..
you may have a dead Mobo..
Well would it only be the USB ports giving me problems if the mobo was dead?