Yup afterburner will let me go upto 1.3volts. nver knovked it up that far tho!
I could get it running stable near 1000core clock with 1.275 in furmark with extreme burn and post effect on for over half an hour, although hot at 85c. Just couldn't get any game working for more than 5 mins above 930, although 930 is a bloody good after clock seeing as stock is 725. Ive heard that every chip is slightly different tho!
930MHz is nothing impressive, these chips are capable of 1.1GHz with decent cooling
Seriously though, 1GHz should be perfectly achievable with most 5850s with voltage control. 940MHz (30% overclock) seems like a reasonable overclock if the cooler is able disperse the heat off the card efficiently whilst maintaining low noise operation.
Two months ago I was going to go full watercooling due to annoying background noise that a pc causes over night, I'd be happy to just get more efficient air-cooling though. Coolermaster CM690 II on my way soon, coupled with two or three Yate-Loons. Gotta love Christmas shopping
Let's just hope it would overclock just as good
It better be, otherwise I will be swapping the coolers