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Cards Resetting at Moderate Voltages

post #1 of 8
Thread Starter 
So, I've been having an issue with Fermi cards since I got my first 460s whenever that was, a long time ago. Every time I pushed the core voltage past 1060 or so mV, in games, the screen would go black and I would have to hard reset the computer to get video again. I originally thought it was an issue with the card itself, so I RMA'd it and got a fresh one. But that did it too. And so did the 470s that I got after it. Today, I got some shiny new 560tis installed, and I thought hopefully this will be the end of my issues with the blackscreen, but this is not the case. I fired up BF3 with my overclock that I deemed stable via OCCT and F@H, and as soon as I fired my weapon, the screen went black and I had to restart. My question is...what the hell is causing this?

The problem as persisted through 6 cards now, I've had different boards, different CPUs, different drivers, and different installs of Windows. But still, if I game with anything more than ~1060mV, it derps out. And only in gaming, too. In F@H, it runs fine at max volts.

It should be noted that the only thing in my system that didn't change was the power supply, but I put it on a tester and found it to be functioning correctly, so I'm not sure if it's the culprit. My mind is open though.
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Mk. IV
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post #2 of 8
Quote:
Originally Posted by SgtHop View Post

So, I've been having an issue with Fermi cards since I got my first 460s whenever that was, a long time ago. Every time I pushed the core voltage past 1060 or so mV, in games, the screen would go black and I would have to hard reset the computer to get video again. I originally thought it was an issue with the card itself, so I RMA'd it and got a fresh one. But that did it too. And so did the 470s that I got after it. Today, I got some shiny new 560tis installed, and I thought hopefully this will be the end of my issues with the blackscreen, but this is not the case. I fired up BF3 with my overclock that I deemed stable via OCCT and F@H, and as soon as I fired my weapon, the screen went black and I had to restart. My question is...what the hell is causing this?

The problem as persisted through 6 cards now, I've had different boards, different CPUs, different drivers, and different installs of Windows. But still, if I game with anything more than ~1060mV, it derps out. And only in gaming, too. In F@H, it runs fine at max volts.

It should be noted that the only thing in my system that didn't change was the power supply, but I put it on a tester and found it to be functioning correctly, so I'm not sure if it's the culprit. My mind is open though.

Sounds like a PSU issue. Could be temperatures and unstable overclock.
It could be the OC is only stable for F@H & OCCT. Try lower the shaders see if it still does it in games.

If this is related to BF3, take a look at this. Not saying that it would fix the issue but worth trying http://www.overclock.net/t/1151158/bf3-driver-crossfire-related-issues/50#post_15579743

If you are using Beta Forceware, set the UAC off.

Go to Control Panel > User Accounts > change User Account Control Settings > move the slider to bottom > restart PC.
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post #3 of 8
What happens if you go "significantly" above that?

The other thing to remember is that F@H does not use all of your GPU. It primarily relies on the ALUs, not the entire GPU cores. Have you tried testing with FurMark?
post #4 of 8
Thread Starter 
F@H and OCCT stress the cards way harder than games do. So, if it's stable for those two applications, I don't know why it wouldn't be stable in a game. RAM isn't OC'd. Also, again, it's done it for multiple cards, and after a quick test, I've found that it does it at stock clocks but increased voltages, so I'm going to say it's not a stability issue. GPUs don't get above ~65C in anything, so it's probably not temps either. Fans are always 100%.

Also, it happens at the same voltage regardless of the card. It does it in every game, but has never done it in F@H, Furmark, or OCCT.

Since I have 64 bit, that link isn't really helpful.

I'm using WHQL too, and my UAC is off anyways.

That leaves the PSU, but how could I test it? I don't have another PSU to steal, as I need my other computers to remain online.

EDIT: I don't know what happens above 1087, that was the max my 460s/470s could do, haven't had the 560s long enough to test that. I'll try it tonight or tomorrow or something.
Edited by SgtHop - 11/14/11 at 9:37pm
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post #5 of 8
Quote:
Originally Posted by SgtHop View Post

F@H and OCCT stress the cards way harder than games do. So, if it's stable for those two applications, I don't know why it wouldn't be stable in a game.

That's not entirely true. Yes, the parts of the GPU that they do stress, they stress harder than any game would. But they don't stress the entire GPU architecture. In particular, Folding and OCCT don't stress VRAM nearly as hard as games do, as they rely on the high-throughput stream processors of the GPU for floating point ALU ops, not the massive VRAM of modern GPUs.

Quote:
That leaves the PSU, but how could I test it? I don't have another PSU to steal, as I need my other computers to remain online.
EDIT: I don't know what happens above 1087, that was the max my 460s/470s could do, haven't had the 560s long enough to test that. I'll try it tonight or tomorrow or something.

Buy a PSU at your local Fry's or Microcenter, and try that. If it works, you're done. If not, take it back. You could also use Amazon, but you'd have to wait for shipping to you, and you'd have to pay the shipping back.
post #6 of 8
Thread Starter 
This is true about the RAM, however, the RAM isn't OC'd. I left that at stock, so I don't know why that would cause a major change in how the card works when I adjust my core voltage.

And, I don't have a Fry's or a Microcenter near me, and paying a restocking fee and return shipping doesn't sound all that awesome. So, do we think it's a power supply, or what? If that's the most probable cause, I'm going to open a ticket with Corsair.
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post #7 of 8
When you get the blackscreen, how long have you left it there for..? I have this when I push too far (apparently) with my system - it craps out and gives me a dead black screen. About 30 odd seconds later, it get a blinking cursor but nothing else, at that time I need to reset.

When I boot up again, it shows BSOD 116. If I don't wait for that blinking curson, I see no BSOD.
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post #8 of 8
Thread Starter 
Couple minutes sometimes if I get distracted. Never had a blue screen because of this.
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