what settings are you using? I'm trying to under clock as the sacrifice of Hashes for less Heat and Noise.
I'm currently running at:
Core Clock 750
Memory clock 800
Fans locked at 55%
Been running for 30 minutes getting about 80 Mhash/s less (currently 550) then with full clocks.
GPU 1 getting 64c
GPU 2 getting 75c
Sound level is as high as I care for it to be.
Are these settings ok?
I have few HD6950 and underclocked are working great, my settings:
Core Voltage: 0.925V
Core clock: 700MHz
Memory clock: 625MHz
Temperature: 62°C - 70°C
Fan from 32% to 40% depending on the room temperature.
Undervoltage is the key to reduce heat and noise.