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Maximum safe 24/7 voltage for GTX 480 folding on air?

post #1 of 6
Thread Starter 
Yeah, I crammed quite a bit into that title, eh? smile.gif

I'm just wondering because in order to get her stable at 850 without EUE'ing in folding, I need 1.138 volts, or the maximum allowed by MSI Afterburner. Is it safe to run it that high 24/7?

GPU core temperatures are sitting solid at 79 degrees celcius and haven't budged in 4 hours. I also take it apart monthly to clean dust out and inspect it.

I also hear a lot about people saying you're fine with that much voltage as long as the VRM's aren't too hot. Unfortunately I have no way to measure this. What do you guys think? It's the reference design.
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post #2 of 6
Are you going for max PPD? as I ran my 480's at 987mv (0.987v) and stock speed for folding 24/7


However, yes 1138mv can be maintained 24/7, but you need it to be cool enough. (sub 80c)
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post #3 of 6
Thread Starter 
Quote:
Originally Posted by Lordred View Post

Are you going for max PPD? as I ran my 480's at 987mv (0.987v) and stock speed for folding 24/7


However, yes 1138mv can be maintained 24/7, but you need it to be cool enough. (sub 80c)

Yeah, I'm going for max Overclocks for two reasons. 1 is maximum PPD, but secondly, my college refuses to turn up the heat in our dorm rooms and it gets into the 40's (Farenheit) at night inside my room. frown.gif

But it's no big deal. biggrin.gif That's part of the reason why I bought a 480. I knew of its huge heat output and that sounded nice to me. smile.gif Anyways, I just park the fan at 80% which gives me load temps of 79-81 degrees. As long as my VRM's can handle it (I think they can...) I'd like to run it at 850 or 875 core at 1.138.
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post #4 of 6
987mv at a lower fan speed will give you the heat, AND the life. smile.gif
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post #5 of 6
1.138 is perfectly safe. Nvidia would never give you that option if there was any potential for damage.
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post #6 of 6
I would think the VRMs are getting too hot at this voltage on the stock GTX 480 cooler. I'd back off to 1.1v, unless you have the cooler fan @100% all the time with awesome case airflow too.
    
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