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Max safe voltage on 7800GT?

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"max safe voltage" well, that would be your stock voltage. but if you are going to take some risk, I would say that depends on your cooling and how much risk you are willing to take. I "personally"would not go more than 1.5 volts on water, some people go more than that on air, but that's just too risky, to me at least.
 
OK I found my answer over at XtremeSystems forum. Max recomended voltage on air is 1.5v, on water is 1.6v-1.7v and extreme cooling is 1.8v to the gpu in 3D mode. If you guys want a teaser of what you can do with an overclocked 7800GT check this out.

3Dmark03

Edit: This benchmark was run at 560/1300 and showed artifacts in the nature test.
 
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