Re:ASUS GeForce GTX 590 overclock and overvoltage protection? - 2011/06/25 01:10finas wrote: Actually, the problem for the GeForce GTX 590 does not lie on the power that a system can supply. It lies on the fact that the power circuitry that feeds the chips on the card was designed below what the card can consume at maximum. Since you know better than me, I don't think it will make any difference what I will say or do even though I don't agree. And, you can have your view on things and we can have ours. But we worked with some experienced tweakers who won a GeForce GTX 590 and at stock the card can handle the power that is drawn but not when you start to overclock and that is also because you can deliver enough power to the card. Yes, your are right about the power circuitry as well but that is only partly true. But you can believe what you like.
So NVIDIA really sucks, throttling the card down with no way of the user knowing about it is as low as it can get. If someone wants to trade this GeForce GTX 590 for a Radeon HD 6990 let me know. Buying this crap card was a really big mistake. If I would have a Radeon HD 6990 than I would consider the trade, but I don't nor does to come to mind to ever get one as it isn't perfect either. But yes, everyone knows the GeForce GTX 590 when it came out had a flaw that was just too visible to hide and the Radeon HD 6990 hasn't. And we do have different opinions for sure, so I will leave it at that. Though I have to agre that the GeForce GTX 590 isn't their best product as they should have better developed it to not have such issues and it will certainly play against them in terms of sales.
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finas
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Re:ASUS GeForce GTX 590 overclock and overvoltage protection? - 2011/06/25 03:14I really don't know better, what I know it that a GeForce GTX 295 has a maximum power output of 295W that is supplied by the PCI Express giving 75W, the 6-pin power of 75W and the 8-pin power of 150W which is giving a grand total of 300W. So, the GeForce GTX 295 at stock is really close to the maximum power that a system is rated to supply. It can be overclocked quite well and it has been tested to draw more than 450W under load. This tells me that the system can actually deliver more power than it is rated for.
On the GeForce GTX 590 we have something similar and we have to count the same things being the PCI Express giving 75W, the two 8-pin power lines each given 150W which gives in turn a grand total of 375W. The GeForce GTX 590 is rated at 365W. While the total power that a system has to supply is 375W. Now I don't see why it shouldn't be able to draw more than a well overclocked GeForce GTX 295 at load, considering that it even has more power available and rated for a higher usage should allow even more.
My conclusion that the problem does not come from the power a system can supply to the card, is based on the GeForce GTX 295, a card that can draw much more power than allowed by the specifications and still functions properly as long as the power supply can handle the load, of course.
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Mavke
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Re:ASUS GeForce GTX 590 overclock and overvoltage protection? - 2011/06/25 10:18And your calculation is simply correct, but it is the combination that became the showstopper for the GeForce GTX 590 and overclocking it too high. Well not really too high cause if the power circuitry would be better dimensioned it would have been able to also draw the power as required and not blow up. With the GeForce GTX 295 you simply had a far bigger headroom before you would hit the point that the power circuitry would no longer be able to handle.
And still many overclockers who actually went to high gotten their GeForce GTX 295 degraded faster than foreseen either which made then bake their card to get them revived. You are correct with your analysis and NVIDIA should have thought about the fact that they allow pre-overclocked cards, which means anyone will simply like to overclock on their own as well and made sure their cards can simply handle it.
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finas
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Re:ASUS GeForce GTX 590 overclock and overvoltage protection? - 2011/06/25 13:55What is really killing me is not knowing when the over current protection kicks in.
I hope someone finds a way of disabeling it...
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Mavke
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Re:ASUS GeForce GTX 590 overclock and overvoltage protection? - 2011/06/26 11:53Mmm, meaning that if it can be disabled and you do as such that you are actually knowing that you will be killing the power circuitry and be left with an useless expensive graphics card. Sorry but your logic doesn't make senses, you know that power circuitry is the weak spot and that many reviewers actually killed their cards during their review due to a flaw in the drivers from NVIDIA and you want to undo what they fixed. Yes, it isn't perfect fix and they should rather redo the power circuitry, but that is how it is right now untill perhaps their is a redesign done.
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finas
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Re:ASUS GeForce GTX 590 overclock and overvoltage protection? - 2011/06/27 01:07Well, I know that going over a certain limit will kill the card, what I don't know is what is that limit. Since we are now locked to 0.963v I belive that disabling the over current protection at that voltage wouldn't be enough to fry the card, but obvously, is a bet that can go wrong, but I actually belive that it is a safe bet, and I would be willing to risk.
For what we know, the cards that were killed were being run at more that 1v, with over current protection disabled ( or inefective due to driver bug ). That is why I asked on the first post, if someone knew of a stock GTX 590 burned by running FurMark with over current protection disabled. Because if the card at stock speeds can run FurMark with OCP disabled, then if *should* be able to run games with OCP disabled at a little higher speed and voltage. And I bought the card to play some games, not to run FurMark
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Mavke
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Re:ASUS GeForce GTX 590 overclock and overvoltage protection? - 2011/06/27 08:54Since several sites are a bit abondoning Furmark as it draws the power up too high like in general 50-100W above what actual games do I am rather very reserved you won't kill your card. Since the limiting of the card is controlled by the drivers, since the first driver that originally came with the cards had a bug and didn't protect the card from burning the power circuitry, there is nothing in the BIOS but rather the drivers. So use the original drivers of when the GeForce GTX 590 came out and see what that gives.
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