Low khs on hd 6950

[revered]

I am trying to mine memecoins with a radeon hd 6950 in Win 7 x64, I downloaded cgminer.exe v3.6.6 (newer versions doesn't seem to have gpu support on the compiled binaries and I don't really feel like compiling it myself right now, just want to test it out).

I ran cgminer with this params (also tried without any params and the result is the same):

Code:

cgminer.exe --scrypt -o "http://meme.ub3rl3[Suspicious link removed]m:3335" -u user.1 -p pass -I 15 -g 1 -w 256 -l 1 --thread-concurrency 6144

Which I got from https://litecoin.info/Mining_Hardware_Comparison

But the kh/s never go above 20, I read this card could achieve like 350kh/s.

My drivers version is 13.11, and I also have AMD App SDK v2.9 installed.

Any advice?

[OneEyedJack]

Try this:
-I 19 -g 1 -w 256 --thread-concurrency 7040

[revered]

Thanks for your reply, those settings seem to do the trick, I got between 350 and 530 khs now.

Edit: -I 19 seems to be a bit too much for my card, after a minute or so the screen turned black and ctrl+alt+del worked but hanged so much I had to restart. Changed it to -I 15 and it still seems to work pretty fine, it's averaging 365khs right now and temp doesn't go above 75c (even when its summer here and hot as f@ck), will see how far I can get it keeping it stable.