oh also, i had the same problem (but with an athlon 64) where it did not boot at all! (turned out the motherboard got fried) and then later down the road the CPU died.
So do this: 1. check the CPU or mobo on different parts if at all possible.
2. if above is not possible, RMA your motherboard then when it gets back see if everything works. and if everything does work then you're all good!