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What is the max 'safe' voltage for a 6950

post #1 of 11
Thread Starter 
I'm using MSIAfterburnerVoltUnlock and although I went over 1.35V to get 990MHz working, now I'm trying to keep under 1.3V, and around 975-980 is stable (I think, but I haven't check the exact stable OC at 1.3V)

This is a non-reference card sapphire , so who knows what they changed

But should 1.3V be safe for full gaming mode OC, the default is 1.1V
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post #2 of 11
1.3v is hitting redline for sure. Don't go making a thread about how you fried your awesome card dude.
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post #3 of 11
Thread Starter 
What about 1.25V

I sure as hell don't want to fry my new baby
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post #4 of 11
I would say 1.25v is in the safe zone.. That is the highest I go with my card.. And save the setting so when am gaming. I would use the setting that I saved..
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post #5 of 11
Dude....when stable/unstable is the difference between safe/potentially dangerous always go with stable...the 10-15 MHz difference wouldn't even be noticeable in benchmarks.
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post #6 of 11
Quote:
Originally Posted by AdmRose View Post
Dude....when stable/unstable is the difference between safe/potentially dangerous always go with stable...the 10-15 MHz difference wouldn't even be noticeable in benchmarks.
True.

1.25v is still too much for my tastes long term, 1.2v I could live with.
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post #7 of 11
Thread Starter 
Thats disappointing

I have to go run GTA4 at 1.2V and see what the OC is
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post #8 of 11
Quote:
Originally Posted by Mit Namso View Post
Thats disappointing

I have to go run GTA4 at 1.2V and see what the OC is
Well, that's just my personal take on it. Run what you feel comfortable with. All I can add is that 1.3v is not recommended for 24/7 use. If on water, you could get away with more volts, but on air not so much.
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post #9 of 11
You'll gain ~2 FPS in Crysis Warhead every 40Mhz or so. So really... Is it worth it to you to run it at 990 as opposed to 950? Or even 910-920? I run 920 at 1.175V for 24/7 use.
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post #10 of 11
Thread Starter 
Well using 1.200V and 947/1500 is stable in GTA4, I went 960 ->950->947, and then then it never froze at all in about the hour I played. Overall I didn't notice any difference, FRAPS needs an averaging function, the average is in the 50s for sure, with it maxed except for shadows/reflections on high, 37/37/37/10

I ran 1540MHz on the VRam earlier today, and the whole system locked solid after a BlackSOD
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