Wow! Really impressive overclocks there! I'm tempted to try flashing my one, but I'm not sure the Sapphire cooler would keep it cool while staying quiet at high volts. I also don't want to risk my GPU.
Are you talking to me? If so, it's also pretty obvious that the Sapphire version's cooler is very much improved over the reference cooler. My temperatures are good with the side panel on. My chip has to be VERY cool to reach 1200 MHz though.
With 1.425 volts set in overdrive, the voltage shown in CPU-Z fluctuates. When idle, it shows 1.464 volts. Under load, it goes up to 1.496 volts. What's going on here?
EDIT: Forget it, I'll make a new thread.
I'm struggling to get 4.1 GHz now I have my new heatsink. It seems to be stable now, with 1.45 volts set in overdrive. CPU-Z is showing 1.52 volts though, which is correct? And what is the maximum safe 24/7 voltage?
EDIT: I can do 4 GHz easily with 1.4 volts.
EDIT 2: No I can't. I need 1.425...
I have received and installed it. I had to take out my motherboard as the CPU cutout in my case was in the wrong place for my motherboard. I am getting temperatures about 10C cooler than with the stock cooler, and a billion times quieter. Is this about right?
In the title, it says "on OC," which I took to mean from the OCUK shop. I don't think they sell second hand, do they?
EDIT: A 5770 would be great if you can get it for £60. I have one, I don't use it any more, and will sell it at some point.