Quote from: ron on June 13, 2011, 05:17:27 AM

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.