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GTX580 overvoltage dilemma.. no more than 1.038v - Page 2

post #11 of 21
you want all the way to 1.213v? pm me and ill give you the modded bios but don't ***** at me when your card frys
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post #12 of 21
Thread Starter 
Those are indeed impressive results! Watercooling I presume?
I have modded my bios to make my fan go 100% but I don't want to go all the way up to 1.213v, since I have got just an air cooler.
But since I can't go over 1.025 volt, I don't even need to think about pushing the limit of 1.150..
I have tried the 580 OCP trick in GPU-Z, but it didn't work. Even after changing airflow and lower temps, the problem occurs.
I'll keep on trying.. thanks for the replies, if anyone has a new idea, you are more than welcome.

And Kombustor might not be a good stability test, because it doesn't really use the memory that much, but it gives me by far the highest temps of all tests. Even Furmark 1.8 with all extra stress options and 32 aa stresses my card about 10 degrees celcius below Kombustor... don't know why though..
Edited by kakakakaka - 2/16/11 at 12:49pm
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post #13 of 21
Quote:
Originally Posted by kakakakaka View Post
Those are indeed impressive results! Watercooling I presume?
I have modded my bios to make my fan go 100% but I don't want to go all the way up to 1.213v, since I have got just an air cooler.
But since I can't go over 1.025 volt, I don't even need to think about pushing the limit of 1.150..
I have tried the 580 OCP trick in GPU-Z, but it didn't work. Even after changing airflow and lower temps, the problem occurs.
I'll keep on trying.. thanks for the replies, if anyone has a new idea, you are more than welcome.

And Kombustor might not be a good stability test, because it doesn't really use the memory that much, but it gives me by far the highest temps of all tests. Even Furmark 1.8 with all extra stress options and 32 aa stresses my card about 10 degrees celcius below Kombustor... don't know why though..
All the normal stress apps seem not to be the right thing to use with the 580 and I haven't found anything that actually disables OCP and I'm not sure I want to
You don't need to worry about OCP in any normal app or game I use a combination of 3DMark 11 and Vantage to test my OC
Don't forget to reboot if you get a display driver reset no matter how high you oc after that it will not increase performance till you restart
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post #14 of 21
Thread Starter 
Okay guys, listen up. I hope this worked for me, haven't tested it thoroughly though. I am now at a core speed of 965 mhz at 1.150V.
The thing is, I guess/hope it really was a thermal problem. At first I had the GTX260 and the GTX580 right next to each other, both covering 3 slots a piece, due to the accellero cooling. That was my only option I thought, because my case isn't big enough to put a 3 slot pci-e card in the bottom slot. But now I solved this problem: just take off the f-ing fans from the 260. Benched it with only PhysX, and with passive cooling (still a big cooling device covering exactly 2 slots and full card length) I am reaching temps of under 75 degrees, full PhysX load (overclocked to 750mhz).
So, the 580 has more space to breathe, and temps came way down.
I guess at a temp of 85+ the VRM might be overheated, or the throttle, but before I didn't get lower clock speeds, but just total system failure. But my guess/hope is the heat. I also turned off the "force constant voltage" in Afterburner, maybe that helped.

Long story, but I hope the problem is solved. Now I get about 75 degrees on full load at 965 mhz. Fingers crossed...

And about 3dmark 11 and Vantage.. They are good testers, but not for endurance stability..
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post #15 of 21
Thread Starter 
Had to lower it a notch, because of some artifacts while playing Metro for a long period at highest setting (AA seems to contribute a lot to heat production and gpu usage in this game). Now i'm at 960 @ 1,150V and stable. I'll try to keep my case more cooled, do some rearranging.
Many thanks guys, it looks like the problem has been solved.. I hope..
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post #16 of 21
Thread Starter 
Not tested thoroughly yet, but just a question again: How do I cool my VRM? And where do I find my VRM on my card? Are they just MOSFET's ? or with capacitors? Or is there more I need to keep cool?

Many thanks in advance

Edit: I think they're already covered by cooling ribs, so are already cooled. Thanks anyway
Edited by kakakakaka - 2/20/11 at 7:46am
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post #17 of 21
Thread Starter 
Well, for the ones who might read this:
The card with the dilemma i had with the voltages, died on me while running furmark at stock speeds. after 3 seconds, pc shut down instantly. Tried rebooting, and tried second time furmark, but pc died on me instantly, before even using gpu. No bios boot, so, had to run my pc with my 260.
Went back to the store: All they said was, ahh, well here you have a new one . So, got a brand new one, running about 20C cooler... no such problems as described in this thread, and now running at 995mhz, at 1,150V. So, thank god my first one died.
Not sure if anyone will read this, but for people who might have the same problem: It could be just a bad card...
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post #18 of 21
Quote:
Originally Posted by kakakakaka View Post
Well, for the ones who might read this:
The card with the dilemma i had with the voltages, died on me while running furmark at stock speeds. after 3 seconds, pc shut down instantly. Tried rebooting, and tried second time furmark, but pc died on me instantly, before even using gpu. No bios boot, so, had to run my pc with my 260.
Went back to the store: All they said was, ahh, well here you have a new one . So, got a brand new one, running about 20C cooler... no such problems as described in this thread, and now running at 995mhz, at 1,150V. So, thank god my first one died.
Not sure if anyone will read this, but for people who might have the same problem: It could be just a bad card...
you disabled the ocp and overvolted it. Then you proceed to stress it with ffurmark so ya its no suprise its dead
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Kill Bill
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post #19 of 21
can you give me that bios jamborhgini ? ^^

thx
post #20 of 21
Quote:
Originally Posted by Exoronic View Post
can you give me that bios jamborhgini ? ^^

thx
sure pm me
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