The MSI motherboards with the 970 chipset are suspect . There were failures of previous models and the G46 just has a bigger heatsink rather than better circuitry .
If you want to overclock then I strongly recommend you use the ASUS M5A97 R2.0 . Its much better
I'd go to the Asus mobo as suggested above, would look for a stronger PSU, the Corsair CX line isn't all that good, especially with the AMD CPU and the 770 GPU..will prob want a CPU cooler, might look at the Hyper 212 EVO