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whats the avarage voltage for a gtx470 @ 850mhz?

post #1 of 8
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I just put my gtx465 (flashed to gtx470) underwater and like the temps I am getting. I will tune my oc settings tomorrow. anybody got some estimates on around how much volts the gtx470 takes on average to reach around 850mhz - 900mhz? I'm using afterburner.
post #2 of 8
Probably around 1.1V will be needed for 850c, but you may luck out and it'll be lower ... that's what mine need though.

Getting over 1.087V will require a bios mod/flash to unlock a higher top voltage limit. After the mod, voltage maxes out at 1.212V.
    
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post #3 of 8
You can't just assume you're going to get to 850mhz fully stable - in any case you're looking at 1.1v easy. Anything over 725 is good and anything over 800 is great, but not all cards are great. And keep in mind that with this generation of cards, as you increase heat by upping the voltage you really increase the power consumption, so additional gains beyond a certain point are somewhat muted by those downsides.

I stopped where I am (750 @ 1.037) which is well above reference both in mhz and volts while outshining the original gtx 560 Ti. Performance is top notch, especially with two wink.gif No problems at all with bf3 or anything else for that matter.
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post #4 of 8
The highest Afterburner will let my flashed 465's with a standard 470 bios is 1.025v. I could hold 850c/1700s/1750m @ 1.025 on two cards just fine. Where they "stable?" Who knows. They played games just fine with no artifact. Did I run them that long? No.

People can go on about using OCCT and look at how many errors, but I've had errors show up on brand new stock speed cards. So take it as it is.
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post #5 of 8
1.087 here.
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post #6 of 8

I've owned 5 GTX 470s in total.

 

2 of them could do it at 1.062V

2 of them could do it at 1.087V

1 of them couldn't hit 850 at all. 

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post #7 of 8
under water?

I agree with 1.1V

My reference 470 couldn't hit 850, even through i had the Modded bios to allow up to 1.21V

I stuck to 750 at 1V + 1 voltage bump (OCCT Stable)

But it would be stable until the temps got too high, so i think that under water 90% of 470's could hit 850, provided you could keep it cool.
    
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post #8 of 8
I need 1.125v for 850Mhz.
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