Re: Just got a 7770, how to downclock video memory in windows?
Also, I thought those 7xxx cards couldn't go to 300MHz mem? I thought they had to be within a certain range of the Core speed? Can you verify with GPU-Z that you are actually mining at 1100,300?
They can do below 300 just fine. All of mine are at 170MHz and have been doing that for quite a while. I am using Catalyst 12.7 beta by the way.
@ThaSpacePope, what PSU are you using? Remember you have to factor in efficiency when you calculate what you're drawing from the wall. My 7970 undervolted and clocked to 1000/170 draws 230W with a Sempron 140 and SSD. The PSU I'm using is an Antec HCG-400M. It's 80+ Bronze so if I factor that it's around 83% efficient at that load that I should be drawing 191W. Then subtract the CPU + board + SSD + case fans which add around 45W. So the card itself is consuming 146W.