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EVGA GTX 980 Reference, 125% power target cuts down on the life of card?

post #1 of 10
Thread Starter 
Just picked up a fantastic EVGA 980 reference. Great card so far. Before I get into cranking anything up, I set the GDDR5 to +400 in MSIAB (like my 960) But other than that, whats the max SAFE voltage/power percentage? I've heard furmark destroying cards by drawing in too much power. Is 125% safe? I was thinking about giving it 110% as temps would prob get above 80c.

TLDR;

1. Can I draw to much power and kill card?
2. Can an overvolt kill card?
3. Heat isn't an issue, can frequencys be cranked untill unstable?


-Thanks! thumb.gif
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post #2 of 10
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Rip. Bump.
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post #3 of 10
furmark no longer kills cards, this has been addressed in drivers and the cards are limited once its detected furmark is running.

1; not without going way over on volts, is it possible, yes. will you do it, no. not without modding anyway.
2; again, not with the voltage available to you on Afterburner or the like
3; yup, its overclock.net its what we're here for!

long story short, off the top of my head you can either give 1.21 or 1.25v to your card, which certainly wont kill it, nor will upping the power limit to the max. power limit jsut reduces throttling, most people use bios mods to get 250% or so, doesnt mean itll draw that much power.

maximum safe is completely maxing volts and power in afterburner basically.
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post #4 of 10
Thread Starter 
Quote:
Originally Posted by jdc122 View Post

furmark no longer kills cards, this has been addressed in drivers and the cards are limited once its detected furmark is running.

1; not without going way over on volts, is it possible, yes. will you do it, no. not without modding anyway.
2; again, not with the voltage available to you on Afterburner or the like
3; yup, its overclock.net its what we're here for!

long story short, off the top of my head you can either give 1.21 or 1.25v to your card, which certainly wont kill it, nor will upping the power limit to the max. power limit jsut reduces throttling, most people use bios mods to get 250% or so, doesnt mean itll draw that much power.

maximum safe is completely maxing volts and power in afterburner basically.

Well I just got done watching a gamersnexus video and he claimed 125% target cuts down on the life of a card. (I get it, chip creep) but he makes it seem like 3 months of 125% and my card would be toast! at stock clocks the card uses 119% tdp if I give it 125% why is this!? -Thanks! thumb.gif
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post #5 of 10
It probably only needs the 19% seeing as how it hasn't been overvolted.

As for cutting down on the life, it really only reduces your max overclock speed. as a personal anecdote, i used the custom software 4 years ago to get 1.381v on my 7950 and spent many hours benching it at 1300mhz at atime when people were getting 1150-1200 max, now i can only run 1200, 1130 gaming. thats all, from a massive overvolt and a overclock from 850mhz to 1300. perfectly stable at clock and a still has a decent overclock.

the thing to take into account is degradation. greater voltages degrade a chip faster due to electron migration, whereby the elctron being sent into a cell to change from on/off jumps to a nearby cell causing a faulty reading and thus crashing. however from my personal reading, it seems that every 10 degrees cooler you can get the card, halves the chance of this happening, showing why better temps allow you to overclock more, as seen on LN2.

a well cooled card can clock higher and live longer than one that isnt for those reasons.
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post #6 of 10
Alright...few things to clear the air...


1. Don't run furmark. It's stupid and a waste of power and excess load on your GPU. It won't tell you anything other than what's the absolute limit of your card. Dumb... you'll never stress it that much in a game.
2. Stress test with things like Realbench/Heaven/Valley/3DMark
3. Overvolting can kill the card in really 2 different ways. A. Constant overheating or running the card at its max core temp would lessen the life. B. The VRM could overheat and blow but that's highly unlikely unless you had like no heatsink for them...
4. You can crank it as far as you want on the core. I've always been told that memory overclocking is what can cause irreversible damage to the card if you overclock the memory too far and it is at the limit of error correction and artifacts. However, in my experience, I've only had a laptop with DDR3 that I noticed the degradation of memory... I used to be able to OC that to 900MHz and after a few years I could only run it at stock without crashing... I've been able to push my GTX970 to 2100MHz memory..however, I'll usually keep it around 8GHz or 2000MHz.
post #7 of 10
Thread Starter 
Yeah I'm not new to overclocking, I just don't understand maxwell overclocking yet. If you buys say MSI afterburner can't kill my card i'll go ahead and run 120% and +60mv thumb.gif
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post #8 of 10
While I am no expert in OCing I would have to say the quality of the components surrounding the GPU should matter some as well. I would think that you have a better chance of damaging a reference card with less power phase & cheaper components than a higher quality aftermarket card while OCing. Sure all the super made for LN2 cards out there are way overkill unless you are benching them on LN2 but I have to assume that the cleaner power delivery to the core & mem along with all the other superior components will extend the life of that type of card when it is used for just gaming stable OCing. Take my 980ti for example, it's max OC on the stock BIOS with max voltage & PL is 1558/2100 while I see many with reference PCB 980tis having to flash custom BIOS to reach that high. Also I have run my card at 1.23 (where it gets with AB's voltage slider maxed) for months on end now with no signs of degradation or lesser performance because of it. Here is some pics of my current OC.


Now with all that said I doubt that in the short term OCing to the max through AB, PX, or any of the other OCing programs out there will degrade even the cheapest reference models. Run it like that for a few years & you may start to notice performance dipping slightly. I wouldn't worry about it too much TBH unless you plan on keeping that 980 in service for the next 5 or 6 yrs. From what I understand, yes OCing will cause a video card to degrade faster than stock setting but the rate of degradation is only slightly increased. So slightly in fact the commonly accepted theory is that the card will be completely obsolete before the performance degradation becomes obvious. The only exception to this that I know of is if you let your card run very hot at all times as heat is the biggest proponent of short term degradation. Electron migration does happen & will cause damage but at such a slow pace the card will be worthless by the time it's effects can be noticed. So if you ask me put the sliders in AB to the max & see what your card can do without worrying. It will not make it blow up or start performing worse in the near future. Just be sure to keep an eye on the temps & keep them under control & your card will be fine. thumb.gif
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post #9 of 10
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Quote:
Originally Posted by Rob27shred View Post

be sure to keep an eye on the temps & keep them under control & your card will be fine. thumb.gif

Still got a 3 year EVGA warranty thumb.gifbiggrin.gifthumb.gif

I might even throw it on water. I was thinking of a corsair h55 or h60 with one of those hybrid brackets.
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post #10 of 10
Quote:
Originally Posted by Rob27shred View Post

While I am no expert in OCing I would have to say the quality of the components surrounding the GPU should matter some as well. I would think that you have a better chance of damaging a reference card with less power phase & cheaper components than a higher quality aftermarket card while OCing. Sure all the super made for LN2 cards out there are way overkill unless you are benching them on LN2 but I have to assume that the cleaner power delivery to the core & mem along with all the other superior components will extend the life of that type of card when it is used for just gaming stable OCing. Take my 980ti for example, it's max OC on the stock BIOS with max voltage & PL is 1558/2100 while I see many with reference PCB 980tis having to flash custom BIOS to reach that high. Also I have run my card at 1.23 (where it gets with AB's voltage slider maxed) for months on end now with no signs of degradation or lesser performance because of it. Here is some pics of my current OC.


Now with all that said I doubt that in the short term OCing to the max through AB, PX, or any of the other OCing programs out there will degrade even the cheapest reference models. Run it like that for a few years & you may start to notice performance dipping slightly. I wouldn't worry about it too much TBH unless you plan on keeping that 980 in service for the next 5 or 6 yrs. From what I understand, yes OCing will cause a video card to degrade faster than stock setting but the rate of degradation is only slightly increased. So slightly in fact the commonly accepted theory is that the card will be completely obsolete before the performance degradation becomes obvious. The only exception to this that I know of is if you let your card run very hot at all times as heat is the biggest proponent of short term degradation. Electron migration does happen & will cause damage but at such a slow pace the card will be worthless by the time it's effects can be noticed. So if you ask me put the sliders in AB to the max & see what your card can do without worrying. It will not make it blow up or start performing worse in the near future. Just be sure to keep an eye on the temps & keep them under control & your card will be fine. thumb.gif
Linus Media Group tested an old card to see if there is any performance degradation by comparing the card they had been heavily using over a long lifespan of the card, versus a brand new from the manufacturer never been opened until the day they did their testing, and checked both cards off versus each other. They found that they performed the same, exactly, in benchmarks and for gaming. Lemme see if I can get that link for you. Here : https://www.youtube.com/watch?v=44JqNJq-PC0

The thing is, a graphics card will more than likely start to crash and give artifacts when it is failing, or just not even boot up. I have seen this happen with a Radeon card that I owned many years ago. None of my Nvidia cards have failed, although I have seen a friend's Nvidia card die. And in fact, I have heard quite a few people's 700 series cards dying. What's up with that? Anyways, the video above explains this. Basically degradation by slowly losing performance over time doesn't happen. But it will start dying all the sudden, and then not work a few hours to a few days later. That's apparently a thing.
Edited by Sphere07 - 7/14/16 at 6:58am
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