BSOD while gaming and web browsing

I was getting BSOD error code 0x0000000A, then I did a reinstall of Windows 7 to see if that would fix the problem. Instead, I was greeted with BSODs but with a different error. Now, I'm getting 0x00000050. Again, while I'm gaming or just web browsing. I have a dual stick memory kit, which will be referred to as stick A and B. I ran stick A and B in dual-channel mode through MemTest86+ for one...