Hi guys. Recently my pc has been BSOD'ing mostly when I run steam games and sometimes when I run other games as well. The error it gives me is system service exception. I ran memtest for ~2 hrs and came up with a pass and no errors, so my sticks should be fine. I tinkered around and I found out that my memory might be out of sync. I tried changing it from auto to manual then back again but they wouldn't sync for some reason. When I first built the PC I figured that I would buy 2x2gb and upgrade with 2x4gb later on and that is what I did. So now I have exactly that configuration and in the attachment you can see that slot 1 and 2 are different from 3 and 4 (didn't put up the pics for 2 and 4, but they are the same as 1 and 3 respectively). How would I change it so that everything is running smoothly together? Please help me out as I just got the R.A.T 7 mouse and Cyborg V5 keyboard and I'm eager to play with them ;P If you need anymore system info I can get that to you, thanks!