I have a dual channel motherboard with 2 4gb G.skill ram. When I downloaded Windows 7 64-bit home premium on my new desktop computer I had problems with the ram on the second slot, so I removed it. I tried to download windows 7 again and it worked with the 1st ram still inserted. I inserted the 2nd ram back into the motherboard again, and I then used dxdiag to see if the specs are correct. To my surprise, the computer said it had 8 gb of ram. This must mean the ram is not faulty at all. I'm so confused if the ram stick is faulty or not. Can someone please help me?