I just recently installed windows 7 home premium 64bit and in my computer properties it shows 3gigs of memory available, same thing in my BIOS system info. when I go to CPU-Z it shows the full 4 gigs. my question is, how do I get it to recognize all 4 gigs? i assume it is something in my BIOS but I cant figure it out. looked around a bit on the internet and cant find an answer either. help is greatly appreciated. thanks.