OP here. My budget i would say is around 80 but preferably less. I was looking at a nicely reviewed asrock mobo from newegg but as soon as i was able to buy it...they sold out lol. I could go over but i would like to build this asap before school starts as i still have to buy a psu (college budget retail job here lol).
That the specs says "Compatible" with Athlon II doesn't mean that support all the Athlon II series, like tecmo34 did u need check the CPU support list of the mobo to know what specific CPUs are supported.
Now, if the CPU isn't in the list usually is because isn't supported by the mobo even with a BIOS update.