Oh damn read the news late.. I'm only getting 70kh/s per radeon 280x, can that be correct?

That's damn too fast. What config do you have? I see people with around 50-60khs and they are happy. You sure you don't get any HW?
Whatnow?? i have like 40Khash on each of my 280X (Asus Matrix 280X!)
svennand try this config with YACminer. You have more experience in mining then me

, you can do it better.
"rawintensity" : "7680",
"vectors" : "1",
"worksize" : "128",
"kernel" : "scrypt-chacha",
"gpu-threads" : "1",
"lookup-gap" : "3",
"buffer-size" : "2570",
"shaders" : "0",
"gpu-engine" : "1044",
"gpu-fan" : "40-100",
"gpu-memclock" : "1500",
You can try to increase buffersize to 2590 and gpu-engine to 1100 if your card could handle it. All of my cards run rock stable with these 2 configs for weeks, hashrate 55-60khs.
Regards,
Ah dough(facepalm)
Theres that much of a difference between yacminer and mrcminer! Guess i slept through that information earlier on.
Oh well, ill see if i get some time tonight to fiddle the settings a bit

what temps do people get on their 280X with 60Khash yacminer? My cards are basiclly idleing on 45-60 degrees (20-40% fan speed) with 40Khash, depending on if its day or night.