any thoughts on how to get 280x's stable with this gpu miner yet?
and why gigabyte 280x's seem to suffer very low hash rate, eg struggle to break 300h/s when compared to an asus 280x that does 360 with ease.
That's what you mean ? Gigabyte like my another rig ?
http://s2.postimg.org/5ps0gbt7t/gigabyte.jpgare they the windforce 280x's rev 1 or 2?
i run 2 of them and one can do 310H/s at 1200/1500 and the other does about 308H/s at 1200/1500. cant seem to push them any higher on mine. even tried different motherboards and the same affect, they are also the ones that drop out 98% of the time....
R9 280x Windforce Rev2. I do it with default clock 1100/1500. Stop OC your CoreClock cuz it will not stable and increase very little hashrate compare with power consumption. I suggest use default for best performance. If you want to OC, just increase a little with MemClock. FORGET TO OC CORE, IT'S NOT GOOD AT ALL.
mine also does not have Hynix GDDR, i have Elpida, which iam assumeing is a much poorer quality brand of memory. i will knock back the OC and list the results.
do you have stock bios, or modded bios btw?
and do yours stay at 99/100% usage or do they bounce around alittle?
Edit.
both cards running at stock clocks with only +20% to power, one does 292 and the other does 288h/s.
very low considering my asus 280x both combined do 730H/s :-/
i use stock bios, no OC, no powertune. My card performance info (stable constant all next info) : Core 1100, Mem 1500, Mem use 99%, fan speed 90%, temp around 55 - 60 ( environment around 30 celsius degree)
I think Claymore build this miner base on ATI 280x factory default parameter, so that if you change or try to change any element parameter of your cards, it will lead to wrong data reply with miner algo. So the result is hashrate drop down or card works unstable.
