I have an XFX 6950 2GB (the non-reference version), and am having some difficultly overclocking it.
I tried MSI AB, but couldn't get it to do unofficial overclocking, so I tried Sapphire Trixx, which seemed to work well.
However, once my card hits 80*C, it starts artifacting. I have messed around with it, and it doesn't seem to be clock or voltage related, it just artifacts the second it hits 80 degrees. So my question is- Is there any throttling that could be occuring because of this temp?
I thought these cards were good for 95* stable. I am currently trying 927 mHz on the core at 1.24v. I am in GPUz, and am not seeing any throttling on the core speed, voltage, amps, memory, nothing.
That core voltage definitely seems very high. I have mine at 1.175 with unlocked shaders @ 910/1400 idle at 38*. Never above 70* gaming. I would say any throttling would definitely be due to those high temps.
Yeah theoretically but is there a reason you have the voltage so high? Were you unable to achieve a substantial overclock with lower voltage? The voltage may be causing the artifacting. I personally wouldn't be comfortable with those temps. As for the safe zones, all cards are created differently so maybe you got one that can't handle as high of overclocks? I'm not sure. I would definitely back it down to see if the problems still persist. The few fps you would gain from a 900 and 927 overclock would be minimal and not worth the heat and artifact problems.