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[GTX 590] Flashing & Overclocking Thread - Page 16

post #151 of 721
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Quote:
Originally Posted by ReignsOfPower View Post
So can we confirm the latest WHQL drivers cause voltage lockdown again? If so, flashing back to mah special BIOS
Quote:
Originally Posted by Smo View Post
Yeah, they do
This. I told Juggalo, I was going to play around with max voltage, and see if I could set the voltage to 1.05v to "unlock" it.

Quote:
Originally Posted by Wogga View Post
i was searching info about MARS II and found some interesting things that in theory might help OCing 590.

MARS II basically isnt modified 590. it indeed have alot more phases and have the same "two g110 on one PCB"-design.

this frankenstein is identified by GPU-Z and furmark as SLi 580, so i think MARS II BIOS is the same as 580 BIOS (but perhaps modified), thus MARS II can perform at 782/1564/4004@1.038v as well as simple stock 580 SLi - its not 590 so there is no PDL.
its 3DMark11 Graphics score is 12300, my 590 at 730/1460/3600@0.988v have 11195 Graphics score so if there were no PDL i could reach nearly the same numbers @782MHz

what i think (in theory, i understand that it could be unreal) is to try to flash 580 BIOS onto 590. driver will see 580 SLi and wont enable PDL

thats all i can imagine helping 590 to perform better =)
That maybe an avenue to look into, but I would prefer some one more technical saavy then me looking into this.

For one thing, we do have less phases. The memory has no guarantee to run that speed.

If we took your idea even further, and lowered the clocks / voltages to a match the stock 590, it may be even safer to "attempt."

The downside is, you would have to "force" nVflash to flash the BIOS. If it didn't work then 590 = brick, and no warranty.

Juggalo and I have another idea though. Almost all the PDL stuff is in the drivers (with the exception of certain elements.) We were thinking of asking one of those custom driver teams like X-Treme G or NGO, to customize some drivers for us and remove certain aspects of the PDL, and the voltage lock.

I haven't had time to go about to their sites and get the dealio if its even possible. I would even be interested in being taught how to go through drivers and edit them, thus doing it myself and not bother anyone else...

I have just been busy benching the 590 cards.

So we will see what comes up, in the mean time, the drivers 280.19 overclock well / most part stable. Stick with them unless playing Crysis 2, then 280.26 drivers can be overclocked with a modified BIOS.
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post #152 of 721
i understand al the difficulties. it was just an idea, based on the MARS II info (btw on 18.08.11 NDA will be removed).
for now i'm on 280.19 and happy with 730/1460/3600@0.988v
post #153 of 721
Thread Starter 
No it was a good suggestion, one I hadn't even thought of. I was hoping eventually a modded 590 (non-reference) or something like that would come out, but it was announced to be not happening.

The new drivers are awesome. I think I hit as high as 870 MHz in Metro2033.
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post #154 of 721
Evga GTX 590. Using nvidia 280.19 Air Cooling. Core 700, Shader 1400, Mem 3600.

GPU1: 0.938v GPU2: 0.938v PDL trotle!

GPU1: 0.925v GPU2: 0.938v FAIL!

GPU1: 0.938v GPU2: 0.925v. Stable! NO PDL. Testing more tomorow.
post #155 of 721
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Quote:
Originally Posted by max883 View Post
Evga GTX 590. Using nvidia 280.19 Air Cooling. Core 700, Shader 1400, Mem 3600.

GPU1: 0.938v GPU2: 0.938v PDL trotle!

GPU1: 0.925v GPU2: 0.938v FAIL!

GPU1: 0.938v GPU2: 0.925v. Stable! NO PDL. Testing more tomorow.
What program are you running?

That voltage is really low for 700 MHz, have you tried 0.963~0.975v?
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post #156 of 721
Quote:
Originally Posted by RagingCain View Post
What program are you running?

That voltage is really low for 700 MHz, have you tried 0.963~0.975v?
I just dropped my voltage at 700MHz to .938 after I saw that post (across both GPUs) as a quick test and it managed 15 minutes of Kombustor. I'll do some more tests tomorrow but it's bed time
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post #157 of 721
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Quote:
Originally Posted by Smo View Post
I just dropped my voltage at 700MHz to .938 after I saw that post (across both GPUs) as a quick test and it managed 15 minutes of Kombustor. I'll do some more tests tomorrow but it's bed time
Its interesting but I assume its something that is not challenging the GPUs very hard.

I doubt it would pass a 3DMark11 or Heaven benchmark without crashing.
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post #158 of 721
Quote:
Originally Posted by RagingCain View Post
Its interesting but I assume its something that is not challenging the GPUs very hard.

I doubt it would pass a 3DMark11 or Heaven benchmark without crashing.
I'm on the commute to work at the moment but when I get in I'll put it through the 3DMark11 benchmark and see how it holds up.
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post #159 of 721
damn, one guy on overclockers.ru in our 590 thread tried to flash 580 BIOS. he's saying that voltage and frequencies were flashed properly but it doesnt show BIOS, freezes and restarting periodicaly. i asked him to give more info on what he seeing and how his card working so i'll post more info later

ok, he made a screenshot. i dont know subvendor numbers for EVGA 590-s and EVGA 580-s, so it could be fake =) also he said that he decided to stop the experiment because of loud noise (dunno, mb VRMs)

Edited by Wogga - 8/12/11 at 12:52am
post #160 of 721
How interesting! Can't wait to hear more about that. Perhaps some kind of hybrid BIOS will be the making of this card.
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