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[Official] MSI GTX 680 Lightning Owners Club - Page 512

post #5111 of 7827
I hit 1333MHz on stock voltage. With +93 on voltage, so far im at 1411MHz with air. Haven't played with the AUX voltage yet.
post #5112 of 7827
Sigh I must have crappy card. I have to use +93 for just 1335 won't go any higher.
post #5113 of 7827
You guys have seen this right? http://www.evga.com/forums/tm.aspx?&m=1758604&mpage=1


Seems nvidia state keplers are flaky and susceptible to degradation through electronmigration with voltages over their stock limit. Also of interest is that AIC's despite their misrepresentations, were not 'forced' to remove voltage control at all. They chose to but they made it seem like nvidia gave them no choice.
Quote:
"Regarding overvoltaging above our max spec, we offer AICs two choices:

· Ensure the GPU stays within our operating specs and have a full warranty from NVIDIA.

· Allow the GPU to be manually operated outside specs in which case NVIDIA provides no warranty.

We prefer AICs ensure the GPU stays within spec and encourage this through warranty support, but it’s ultimately up to the AIC what they want to do. Their choice does not affect allocation. And this has no bearing on the end user warranty provided by the AIC. It is simply a warranty between NVIDIA and the AIC. "


NVIDIA claiming premature kelper death with any overvoltage
Quote:
Some of our best and most passionate customers have told us (though forums, partners and directly) that they are frustrated with our position on GPU Overvoltaging. So we feel that it is important to explain exactly what our position is and why we feel that it is important.

We love to see our chips run faster and we understand that our customers want to squeeze as much performance as possible out of their GPUs. However there is a physical limit to the amount of voltage that can be applied to a GPU before the silicon begins to degrade through electromigration (http://en.wikipedia.org/wiki/Electromigration). Essentially, excessive voltages on transistors can over time "evaporate" the metal in a key spot destroying or degrading the performance of the chip. Unfortunately, since the process happens over time it's not always immediately obvious when it's happening. Overvoltaging above our max spec does exactly this. It raises the operating voltage beyond our rated max and can erode the GPU silicon over time.

In contrast, GPU Boost always keeps the voltage below our max spec, even as it is raising and lowering the voltage dynamically. That way you get great performance and a guaranteed lifetime.
So our policy is pretty simple:

We encourage users to go have fun with our GPUs. They are completely guaranteed and will perform great within the predefined limits.
We also recommend that our board partners don’t build in mechanisms that raise voltages beyond our max spec. We set it as high as possible within long term reliability limits.


The reason we have a limit on max voltage is very simply to prevent damage to the GPU chips. At NVIDIA we know that our customers want to push their GPUs to the limit. We are all for it, and as a matter of fact NVIDIA has always prioritized support for hardware enthusiasts by providing tools to access hardware settings and by supporting our board partners in creating overclocked enthusiast products. Leading up to the GeForce GTX 680 release for example, we worked closely with developers of 3rd party overclocking utilities to make sure they fully supported GeForce GTX 680 and GPU Boost on the day of launch.
post #5114 of 7827
Quote:
Originally Posted by CryptiK View Post

You guys have seen this right? http://www.evga.com/forums/tm.aspx?&m=1758604&mpage=1


Seems nvidia state keplers are flaky and susceptible to degradation through electronmigration with voltages over their stock limit. Also of interest is that AIC's despite their misrepresentations, were not 'forced' to remove voltage control at all. They chose to but they made it seem like nvidia gave them no choice.
NVIDIA claiming premature kelper death with any overvoltage

Yep, we seen this a few months ago.
    
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post #5115 of 7827
thats the difference between the refrence models and custom pcb...right???? is that the reason why evga turned there lifetime warrenty to just 3 years?
    
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post #5116 of 7827
Few pics of my lightning rig




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post #5117 of 7827
where is your HDD and your optical drive cables? Can you just send me a picture of your cable management lol?
Edited by TheAssassin - 1/19/13 at 11:20pm
post #5118 of 7827
Quote:
Originally Posted by johnnyw View Post

Few pics of my lightning rig
Warning: Spoiler! (Click to show)




Nice Lightning, but I like that psu even more!
    
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post #5119 of 7827
Quote:
Originally Posted by TheAssassin View Post

where is your HDD and your optical drive cables? Can you just send me a picture of your cable management lol?
HDD cables are behind mb tray and dont have optical installed atm, sata power connectors are well hidden behind that scythe himuro enclosure and ssd again is hidden under it biggrin.gif

If you watch it closely you can see sata cables from that lowest hole at mb tray at left side of the himuro.
Edited by johnnyw - 1/20/13 at 12:04am
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post #5120 of 7827
Quote:
Originally Posted by CryptiK View Post

You guys have seen this right? http://www.evga.com/forums/tm.aspx?&m=1758604&mpage=1


Seems nvidia state keplers are flaky and susceptible to degradation through electromigration with voltages over their stock limit. Also of interest is that AIC's despite their misrepresentations, were not 'forced' to remove voltage control at all. They chose to but they made it seem like nvidia gave them no choice.

*snipped*


NVIDIA claiming premature kepler death with any overvoltage

*snipped*

Not sure if that constitutes a real "choice". More like an offer that can't be refused.... As for the "explanation", I have no way of knowing the percentage of truthfulness in it. Not hearing about lots of failed cards in this thread, so I'll continue to take it all with a grain of salt. biggrin.gif
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