I'm going to take a stab and say that the mobo is still good. If you have a spare compatible processor laying around you could try that to see if it works, do that before RMAing anything.
If you don't have a spare proc, the least you could before before RMA is to take everything out, the RAM, the processor, all the accessories and peripherals and drives, and plug in the main power connector and the 4-pin 12v connector and turn it on (so you're testing the power supply and the basic circuitry of the board). Let it run for a few minutes and make sure there's no smoke or undue heat. If not, go ahead and RMA the processor. NewEgg will be good to you.