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[TR] Nvidia, Asus put the clamps on GTX 590 voltage  

post #1 of 224
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Quote:
The biggest news on this front, in our view, is that Nvidia has put the clamps on GTX 590 voltage in its drivers. We shot down a rumor last week that the public-release 267.91 drivers somehow reduced the performance of a stock-clocked GTX 590. They simply do not. However, we've since learned Nvidia has capped the voltage at the default 938 mV on GTX 590 cards starting in release 267.91. We've confirmed that the latest 270.51 betas will not allow us to raise our GTX 590's voltage at all using MSI's Afterburner utility.

This driver-based cap means that even fairly modest overclocking may no longer be feasible with the GTX 590. Our so-called WICKED config only took the GPU core to 690MHz, and getting there required a bump to 963 mV. With Nvidia's latest drivers, a modest overclocked config like WICKED is not viable. The clock speed slider is willing, but the voltage is weak. GTX 590 owners will have to settle for whatever minor frequency increases they can achieve at stock voltages.

Given the way our GTX 590 card tolerated a reasonable bump up in voltage, we think this zero-tolerance voltage cap is probably a PR-driven overreaction. Then again, our WICKED config admittedly drew quite a bit of power—enough to make us uncomfortable. Either way, unfortunately, this change means GTX 590 owners will be robbed of what little headroom their cards may have in store.

We'll call it the Way-Extreme Amperage Kap, or WEAK.
Source

Nvidia has put a voltage cap at 0.938V for the GTX 590.
post #2 of 224
Oh no fail! HAHAHAHA

WHY NVIDIA WHY!
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post #3 of 224
Is this their "solution" to the problem or is this just a stopgap until a new revision GTX 590 with better VRM's comes out?
post #4 of 224
Hopefully someone will make an "extreme" version, all they need to do is 8x2 and 1 6pin connector and get some tank VRM's All the GPUs in the 590's are hand picked for the best clocking ability and lowest heat out put. With watercooling you could see this magic GPU hit 1ghz/2ghz shader with 1024 cores /gizzums
post #5 of 224
Damn. ..guess amd got them scared

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post #6 of 224
So is it pretty much safe to say that they have reached the limits of the power draw for dual GPU cards in a single slot? With Nvidia and ATI both doing a lot to keep people from increasing voltages I wonder if they are really just dancing around a potential problem that could see motherboards get cooked trying to OC these dual GPU cards?
I know these cards each have their own limiting components but maybe there is something much larger going on? At this point Single GPU and SLI/Crossfire seems like a no brainer over dual GPU cards.
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post #8 of 224
What happened to the safe voltage of 1.05 on water?
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post #9 of 224
Quote:
Originally Posted by Maxxa View Post
So is it pretty much safe to say that they have reached the limits of the power draw for dual GPU cards in a single slot? With Nvidia and ATI both doing a lot to keep people from increasing voltages I wonder if they are really just dancing around a potential problem that could see motherboards get cooked trying to OC these dual GPU cards?
I know these cards each have their own limiting components but maybe there is something much larger going on? At this point Single GPU and SLI/Crossfire seems like a no brainer over dual GPU cards.
Thats not the problem its the fact the 590s are dieing when you raise voltage i havet heard of any 6990s dieing from increasing its volts.
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post #10 of 224
That's basically what the HOCP article found out as well. Raising the voltage did nothing but decrease the scores.

That's basically what I thought Nvidia would do in order to stop all the talk about cards blowing up. They do know that stock voltages are fine and should not blow up any card but even then people claimed they were blowing up on stock clocks and voltages. Lets see now how many cards still blow up
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Overclock.net › Forums › Industry News › Hardware News › [TR] Nvidia, Asus put the clamps on GTX 590 voltage