you can use atioverdrivectrl in ubuntu to set your 6990 clock to 1000,150. you get 850 Mhash/s
Hi Darkpandora,
Can you share with us how you managed to change the memory clock speeds in your 6990? I'm currently stuck at 1250 and nothing I do seems to untangle it. Please help if you can, thanks!
Regards,
Forsythe