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[TT] MSI Geforce GTX 680 Lightning Spotted - Page 17  

post #161 of 900
Quote:
Originally Posted by Alatar View Post

the EVBot is required for voltage control over 1175mV afaik.

Roger that. Makes sense: I mean, that OC was done at 1175...so they didn't need the EVbot, but used it.
post #162 of 900
Quote:
Originally Posted by Johnny_Utah View Post

Roger that. Makes sense: I mean, that OC was done at 1175...so they didn't need the EVbot, but used it.

The precision software won't show proper voltage with EV bot. EV Bot has a readout with whatever additional voltage you're using, unless you directly hardware modify the card and BIOS.

...unless anything changed from the gtx 580 days
post #163 of 900
Even if these Lightnings have unlocked voltage (up to what voltage exactly, I couldn't even guess), there still might be a decision to make. Granted these will probably be cheaper than the Classified. But, for a little more, you will probably be getting a much higher voltage. It seems like, price info pending, the Classified would be the way to go if we're talking about getting one for voltage control, since I saw EVGA_Phaedrus post the max voltage will be 1.8v. And in the Computex thread, I made a comment about wondering what speed my card would do at even 1.3v, and a EVGA hardware rep (maybe Phaedrus again?) laughed and said "You really think we would stop at only 1.3v rolleyes.gif".

So, I just mean if prices aren't insanely far apart, the Classified would be the way to go. If the Lightning is $100+ cheaper, I might consider going with it. But the comments made by the EVGA reps are making me tingle all over biggrin.gif
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post #164 of 900
Classified is $659.99 + $99 EvBot = frown.gif ha

http://www.evga.com/products/moreInfo.asp?pn=04G-P4-3688-KR&family=GeForce%20600%20Series%20Family&sw=

I just really want to know how voltage adjustments will be made for the lightning. Pretty please Alex let us know something ha.
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post #165 of 900
Quote:
Originally Posted by dph314 View Post

Even if these Lightnings have unlocked voltage (up to what voltage exactly, I couldn't even guess), there still might be a decision to make. Granted these will probably be cheaper than the Classified. But, for a little more, you will probably be getting a much higher voltage. It seems like, price info pending, the Classified would be the way to go if we're talking about getting one for voltage control, since I saw EVGA_Phaedrus post the max voltage will be 1.8v. And in the Computex thread, I made a comment about wondering what speed my card would do at even 1.3v, and a EVGA hardware rep (maybe Phaedrus again?) laughed and said "You really think we would stop at only 1.3v rolleyes.gif".
So, I just mean if prices aren't insanely far apart, the Classified would be the way to go. If the Lightning is $100+ cheaper, I might consider going with it. But the comments made by the EVGA reps are making me tingle all over biggrin.gif

I would think it will be 1.8V max for the 680 lightning, that's what it was for the 580 & 7970 lightnings. Nobody goes quite that high regardless of cooling though, but the capability was there.
    
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post #166 of 900
Quote:
Originally Posted by xoleras View Post

I theorize that the GPU reactor on the back of the card will allow for voltage adjustment. The GPU reactor first appeared on the 7970 lightning which added additional overclocking wizardry, I expect this to be the method on the 680 lightning.
But if Alex can clarify that would be great smile.gif

The GPU reactor is a smoothing circuit to stabilize the card when pushing it to it's limits. Not to increase voltage. I assume it will have unlocked voltage just not sure how. EVGA took the easy way out and opted to use EVBot to override software limitations where MSI will be using unlocked power phases? I don't know but with the cards secondary LN2 BIOS might be how it's achieved, would be stupid to tell everyone this card is designed to break world records with and then limit anything on the card at all.

http://hexus.net/tv/show/2012/06/MSI_gives_sneak_peek_into_GeForce_GTX_680_Lightning

Card also have an input to monitor voltage? Maybe with a similar tool to EVBot you can change the voltage. Who knows.
Edited by thestache - 6/19/12 at 8:35pm
    
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post #167 of 900
GPU reactor could easily be used to mod the voltage. What it was used for on the 7970 doesn't have to be identical to the 680. Note that the asus DC2 uses has an area for modding similar to what the gpu reactor could do.

I am 100% sure it will have voltage modification, every lightning has and every lightning has been designed for world records. Every lightning ever produced allowed voltages so far beyond stock that it was silly - they are designed for LN2 with a special BIOS designated for LN2.

I can't wait to get my hands on 2 of them wink.gif I definitely won't pay 760$ to EVGA for their silly EV bot. Lightnings are a better line than classified, they always have been.
post #168 of 900
Quote:
Originally Posted by xoleras View Post

GPU reactor could easily be used to mod the voltage. What it was used for on the 7970 doesn't have to be identical to the 680. Note that the asus DC2 uses has an area for modding similar to what the gpu reactor could do.
I am 100% sure it will have voltage modification, every lightning has and every lightning has been designed for world records. Every lightning ever produced allowed voltages so far beyond stock that it was silly - they are designed for LN2 with a special BIOS designated for LN2.
I can't wait to get my hands on 2 of them wink.gif I definitely won't pay 760$ to EVGA for their silly EV bot. Lightnings are a better line than classified, they always have been.

Would it have to be done via a hardware mod or could it be done with changes to the BIOS?
    
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post #169 of 900
Quote:
Originally Posted by xoleras View Post

GPU reactor could easily be used to mod the voltage. What it was used for on the 7970 doesn't have to be identical to the 680. Note that the asus DC2 uses has an area for modding similar to what the gpu reactor could do.
I am 100% sure it will have voltage modification, every lightning has and every lightning has been designed for world records. Every lightning ever produced allowed voltages so far beyond stock that it was silly - they are designed for LN2 with a special BIOS designated for LN2.
I can't wait to get my hands on 2 of them wink.gif I definitely won't pay 760$ to EVGA for their silly EV bot. Lightnings are a better line than classified, they always have been.

The DC II mod area is for reading and raising core, mem, and pll voltages. The MSI GPU reactor is to stabilize voltage given to the core. Two different things. Any review site that has used the GPU Reactor has reported less than stellar results from it. The GPU reactor is not for raising voltage.

That being said, I'm betting this will have software voltage control in a new revision of Afterburner. The new 670 Power Edition from MSI says triple overvoltage, but users with the card report no control over 1.175V on the core (which isn't control at all seeing as the card will control voltage up to that point), and no control at all over mem and pll voltages.
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post #170 of 900
GPU reactor can do whatever the hell MSI wants it to do. What it was used for on the 7970 has no bearing on what it could do on the 680. You certainly don't have to lecture us about what the DC2 does.

Also, software voltage is not possible beyond 1175 on the 680 because the driver enforces the 1175mV limit. You can adjust only vDroop -- You can argue this forever but this is fact, pretty sure software beyond 1175 will never happen unless nvidia changes it. (not likely) The only way around this is a hardware mod.
Edited by xoleras - 6/19/12 at 9:38pm
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