But I'm gonna reformat everything and just start from scratch.
So you know for the future....you are ALWAYS supposed to format when replacing a major hardware component such as a motherboard and sometimes VideoCard depending....but anywho....yeah if you're switching out motherboards ALWAYS fresh install otherwise you'll get nothing but problems.
Yes they are compatible, both socket 478 and the CPU is new enough (obviously)...anyway..the best way to do it is keep the motherboard OUT.....put on your CPU and Heatsink and you can put the RAM in too at this point if you want, because RAM is easy....but I suggest you put in the CPU and apply the heatsink while it's not in the case, like right after you actually receive the board....it'll make it much easier to get the heatsink on straight, without much fidgeting, and possible better chances of not stabbing the board with a screw driver
Putting the mobo in a case with everything still in it can prove to be a b!tch so have fun with that. I've done it two or 3 times now because I'm lazy like that...and have had no consequences but if it was a customers computer they probably woulda froze up at the way I was handling the board
I say...personally.....just put on the CPU and heatsink outside the case....put in the mobo..and just plug everything in...be confident in your skills and the computer will boot
Don't forget to apply Thermal Compound if you have it....but if you plan on using the heatsink that you have now...and it's a stock heatsink....then it'll have a thermal pad on it..and you DO NOT want to put thermal compound on a processor with a heatsink that already has a thermal pad on it...you can remove the pad with a plastic credit card and some rubbing alcohol...try not to scratch the surface...THEN apply some good compound for better cooling.
Installing the CPU is easy. Just make sure you line up the little indicators that they put on there for a reason...a little corner with a golden triangle points to an arrow that's in the plastic of the socket...otherwise just match up the pin alignment..you'll feel a little resistance pushing the lever back down but that's normal. The CPU should just drop right into place so if you're having to force it into the socket you're doing something wrong. Hope this helps