Quote from: usao on May 21, 2014, 04:40:31 PM

Quote from: Kartoffelknilch on May 21, 2014, 04:37:11 PM

Quote from: usao on May 21, 2014, 04:26:29 PM

Tried the config you sent, one GPU is fine but about the same hashrate (215KHs), the other GPU doesn't like it for some reason. Both are the same brand.
http://i.imgur.com/pLIFsqy.jpg

Please disable in AMD-CCC grafic-overdrive.

The GPU-core depends on the vendor of your hardware: i'm using a r9 280x from powercolor(a cheap vendor) and have a GPU-core of 970 with 330kh/s.
On Sapphire cards i'm using a gpu-core of 1050 with 350kh/s.

diff of 20kh/s => at atm price ~ 22$ per yeah diff Tongue

but costs me 50 bucks less when buying new => 2 years ROI Wink

I don't recall the brand offhand, could be PowerColor...
I can check when I get home.
About the AMD-CCC thingy, how/where does one disable this (and re-enable if it doesn't help)?

Right click on desktop => AMD-Catalyst Control Center (CCC) => Performance => AMD Overdrive => remove checkbox "Enable GraphicsOverdrive" => done

Got me 3 brand new grey hairs till i found out what was wrong Tongue

Those "OverDrive" tuned the card down and "re-adjusted" my mining settings... *AAARRGGHHHhhhh...* Cheesy

And as i wrote above: every vendor has its own "sweet spot"... not every time is more = more hashes