I'm so pissed right now. I decided to finally check the utilization of both my GPU's cores only to find out that GPU1 isn't being used? I tried Fear 2 First, nothing. Then 3DMark06, nothing. L4D, NOTHING! None of my games are using the second GPU Core, core 1! I feel like AMD ripped me off. By selling me an overpriced HD3870 513MB GDDR3. I don't even think my PC is using the other cores 512MB that would add up to a supposed 1GB. I can't even think straight I'm so pissed. Here I am playing my games thinking I'm getting FPS equivalent to what two GPU's would give me and I'm only using one. How can I fix this? Does anyone else has this issue? WTF? Look at Riva Tuners GPU0 and GPU1, where GPU0 is used 1 is not.