continually getting A2 and D7 error codes when i boot pc

I just built my first computer and for some reason keep getting A2 and D7 error codes.

Equipment being used:
Big bang z77 Mpower mobo
intel i7 3770k processor
Geil Evo Veloce dual channel 1600Mhz Ram
3gb radeon 7970
ocz Agility 3 120gb ssd (Operating ...