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[Official] GTX 580 Overclocking Club - Page 270

post #2691 of 3582
Okay, so this is making a lot of sense now. I watched my temps via OSD during a few benches. Its @ about 88c at its highest temp on stock settings with custom fan profile ramping the fan to 100% @ 75C and above. I'll have to assume that the Vcore being 1.16 is helping this temp climb that high as I have read I don't know how many 100's of posts now with people saying their cards never get over 65C with stock cooling and auto fan. I flipped the switch back to normal mode until I can figure something out about this Vcore and the temps I'm reaching. Just to note, My case it the CM HAF X nvidia edition with 7 fans all perfectly and painstakingly arranged to have a steady airflow over all the components. Inside case temps never go higher than 32C.
post #2692 of 3582
Quote:
Originally Posted by friend'scatdied View Post

Quote:
Originally Posted by shad0wfax View Post



My GTX 580 SuperClock defaults are 797 core / 1594 shader / 2025 memory, at 1.063 Vcore. Some folks have higher Vcore with the same card and I know of one person who has a 1.050 Vcore from the factory on that card.

I'm running it at 900/1800/2106 @ 1.150V on the latest evga fan-speed unlocked BIOS/firmware. Even though I was gaming and benchmark stable at as high as 962 MHz core at that voltage, it was not folding stable on the -advmethds WUs. Although 1.150V may seem "way too high" for a 900 core and the Classifieds are doing it at 1.100 at the same frequencies, that's what it took to be folding stable and my temperatures stay at 76C or lower on air in a reference design.


Again, it may be "really really high voltage" for that clock, but that's what it took to be 100% stable in folding@home on the -advmethods.

I didn't mean your overclock, I meant for the EVGA GTX 580 Classified and Classified Ultra. A base voltage greater than 1.15v for 900MHz or near 1.15v for just 855MHz seems ridiculous to me.


Ah, we're getting our wires crossed, I think. :)   Yes, what I was getting at was that when the factory tests their cards, they're testing them to be 100% stable for the customer at a given clock, because the last thing they want is a card to be RMA'd due to driver crashing. You can bet that they put them through the paces to get a 95% (or even 99.5%) Confidence Interval with their QA department before they get shipped out. It's much easier to overvolt the firmware a bit at the factory and ship a stable (although admittedly somewhat poorly performing GPU to require that much voltage) to the customer than it is to scrap the board or send a board out that's likely to get RMAd when some enthusiast crashes it at default clocks in a benchmark.

 

What I was trying to say was that it's only 0.010V higher than my 580 is at, and I spent close to 2 weeks getting my clocks tuned to work with Folding@Home on -advmethods 24/7 stable. It's not really that unreasonable of a voltage but it's the highest I've heard of and I believe that it's rather anomalous for those cards. Also consider that the factories are not going to spend 2 weeks getting it tuned to the ragged edge of balancing lowest voltage at highest possible clock for stability. They're going to use a faster (and potentially more stressful) testing method and test for a shorter period of time, then increase the voltage by 1 step to "guarantee" stability in any scenario and that's what the firmware will be set to. In other words, if my card was supposed to come from the factory at 900 MHz core, they'd probably have set the voltage to 1.160V and not 1.150V, like I did.

 

The 580 Classifieds should have much better VRM circuitry than my 580 Superclocked has and that usually allows them to take the GPU to the higher clock speeds on a lower voltage than the reference cards can do. (Doubling the memory size in the Classifieds puts an extra burden on the VRM, so it becomes even more important to have the extra power and the tighter VRM tolerances.)

 

However, I believe that I got a fairly high quality GPU, perhaps a standard deviation or two better than the norm of the lots and it's fairly apparent to me that the person with the 1.160V Classified (from the factory) is probably stuck with one of the poorest GPUs out of the lots that I've heard of, which was barely able to make it through and still get the "gold seal" of approval for sale to the public, if that's the voltage it took to meet factory QA stability tests with the enhanced VRM circuitry of the Classifieds. It's probably two or even three standard deviations below the norm for those cards.


Edited by shad0wfax - 1/30/12 at 1:22pm
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post #2693 of 3582
Okay, I ran 3 tests with different settings.
test 1: stock clocks and switch set to normal
test 2: stock clocks and switch set to OC mode
test 3: 940/ 1870/2186 OC switch set to OC mode.



Test 1 Test 2 Test 3
Core: 900 900 940
Memory: 2106 2106 2146
Shader: 1800 1800 1880
Max fan%: 59% 90% 98%
Max fan speed: 2880 4050 4510
Max Temp: 66C 75C 78C
memory used: 394mb 271mb 400mb
memory load: 25% 14% 23%
GPU load: 99% 99% 99%
VDDC: 1.15v 1.16v 1.16v

all info was gathered via GPU-Z running in background to record max stats during benchmarks.
It looks like the OC firmware auto ups the Core V to 1.16 as a starting point which I figure is what they meant by stating "The new OC firmware has minor adjustments for EVGA precision software compatibility and provides more stability for extreme cooling and overclocking."
It should be known that a 4th test was run on this specific card with a 950/1900/2113 setting and it was unfinished due to driver crash.

With switch set to normal mode and factory clocks set, I could barely notice the fan ramping up and it was not very intrusive as far as noise. The second it was switched to OC mode the fan became audible even at idle speeds which I can only assume is due to the extra .010v but that doesnt seem to make that much sense to me as the temps shouldn't be that different with that little bump or am I completely wrong on this?
post #2694 of 3582
Shadowfax your voltage requirements at that clock aren't insane although they are higher than what you will see called stable by non-folders. In comparison to mine they are pretty close to what I would expect, I've got the Lightning (which is supposed to be binned for the best of the best GF100) and I need 1.125v for 900MHz stable but it's not worth the heat for the extra 1.2K PPD to me so I leave it at stock volts of 1.031v and 840MHz which is the best I can do there.
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post #2695 of 3582
Quote:
Originally Posted by Ryanhabs View Post

Okay, I ran 3 tests with different settings.
test 1: stock clocks and switch set to normal
test 2: stock clocks and switch set to OC mode
test 3: 940/ 1870/2186 OC switch set to OC mode.



Test 1 Test 2 Test 3
Core: 900 900 940
Memory: 2106 2106 2146
Shader: 1800 1800 1880
Max fan%: 59% 90% 98%
Max fan speed: 2880 4050 4510
Max Temp: 66C 75C 78C
memory used: 394mb 271mb 400mb
memory load: 25% 14% 23%
GPU load: 99% 99% 99%
VDDC: 1.15v 1.16v 1.16v

all info was gathered via GPU-Z running in background to record max stats during benchmarks.
It looks like the OC firmware auto ups the Core V to 1.16 as a starting point which I figure is what they meant by stating "The new OC firmware has minor adjustments for EVGA precision software compatibility and provides more stability for extreme cooling and overclocking."
It should be known that a 4th test was run on this specific card with a 950/1900/2113 setting and it was unfinished due to driver crash.

With switch set to normal mode and factory clocks set, I could barely notice the fan ramping up and it was not very intrusive as far as noise. The second it was switched to OC mode the fan became audible even at idle speeds which I can only assume is due to the extra .010v but that doesnt seem to make that much sense to me as the temps shouldn't be that different with that little bump or am I completely wrong on this?


I'm not at all familiar with the OC firmware, as I don't own an ultra classified. I haven't seen the ELEET software yet either. You can, however, examine the fan-speed profiles in each firmware setting by opening up Nvidia Monitor and looking at the clocks, voltages, and graphing fan speeds and temperatures during benchmarks. You may be able to view the fan speed profile points in EVGA Precision as well.

 

The firmware that I downloaded for my 580 Superclock was only an unlock on the fan speed multipliers. It extended the range from 40-85% as it was before to 30-100% as it is now, but didn't change my clocks or voltages at all and didn't change my fan speed points in any way that I noticed. (I'm using EVGA Precision for a custom software based fan speed profile.)

 

If the OC firmware is what is cranking your voltage, then my guess is the same as yours, that they've also made significant changes to the fan profiles to account for the increased voltage.

 

You'd be surprised how much a 10 mV difference makes on the 580 in my card. When I went from 1.138 to 1.150 V, (a 12 mV change) I saw an incrase in peak temperature (at 100% fan speed) of 4C, from 71 to 75C at 100% load in folding -advmethods. With the fan profile on default mode, it was simply a question of how quickly my temperatures rose to the 90C mark before the fans went into 85% speed and cooled things down to 80C, then throttled down, allowing temperatures to ramp back up to 90C repeatedly.

 

I've noticed on my card, which is a reference fan design, that 50% and 60% fan speeds aren't very loud, 65% fan speed is somewhat loud, 70% is very loud, and anything over 85% sounds like a turbine running.

 

So it's entirely possible that they've only increased the voltage by 10 mV and the fan speed steps by 5% across the board, but you're hitting one of those thresholds where 65% fan PWM isn't too bad, but suddenly 70% PWM is making you think that your card is too loud. And after looking more closely at your percentages, there's a big difference in noise between 59% and 90% fan. :P


Edited by shad0wfax - 1/30/12 at 2:44pm
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post #2696 of 3582
Quote:
Originally Posted by Ryanhabs View Post

Okay, I ran 3 tests with different settings.
test 1: stock clocks and switch set to normal
test 2: stock clocks and switch set to OC mode
test 3: 940/ 1870/2186 OC switch set to OC mode.
Test 1 Test 2 Test 3
Core: 900 900 940
Memory: 2106 2106 2146
Shader: 1800 1800 1880
Max fan%: 59% 90% 98%
Max fan speed: 2880 4050 4510
Max Temp: 66C 75C 78C
memory used: 394mb 271mb 400mb
memory load: 25% 14% 23%
GPU load: 99% 99% 99%
VDDC: 1.15v 1.16v 1.16v
all info was gathered via GPU-Z running in background to record max stats during benchmarks.
It looks like the OC firmware auto ups the Core V to 1.16 as a starting point which I figure is what they meant by stating "The new OC firmware has minor adjustments for EVGA precision software compatibility and provides more stability for extreme cooling and overclocking."
It should be known that a 4th test was run on this specific card with a 950/1900/2113 setting and it was unfinished due to driver crash.
With switch set to normal mode and factory clocks set, I could barely notice the fan ramping up and it was not very intrusive as far as noise. The second it was switched to OC mode the fan became audible even at idle speeds which I can only assume is due to the extra .010v but that doesnt seem to make that much sense to me as the temps shouldn't be that different with that little bump or am I completely wrong on this?

From what I've read about the Classified and know about my Lightning (they're eerily similar BTW) you don't want to mess with the BIOS selector switch on the back of your card. It's intended for LN2 and other extreme cooling cases (read sub zero) so it makes lots of little tweaks that will affect your card in ways you don't need and possibly don't want when running on air. Specifically it likely removes any sort of overcurrent protection and allows the card to boot at sub zero temperatures (those in themselves wouldn't be a big deal on air cooling). But what I'm guessing it also does is increase some voltages to areas that you can't see, and possibly changes the VRMs switching frequency which would be my guess for the big temperature increase. So I would leave your card in the "normal" setting of your BIOS switch as opposed to the "OC" setting, you will still be able to overclock and overvolt your card without issue and it will be more appropriate for your air cooling needs.
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post #2697 of 3582
Quote:
Originally Posted by juano View Post

(which is supposed to be binned for the best of the best GF100)

The Lightning isn't binned, unless it shares the same PCB as the GTX 580 Twin Frozr II/III non-Lightning.

The VRM circuity and PCB are top notch, but the GPU itself is the same luck-of-the-draw as with any GF110. Hence the stock overclock is pretty conservative.
Edited by friend'scatdied - 1/30/12 at 3:27pm
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post #2698 of 3582
Quote:
Originally Posted by juano View Post

From what I've read about the Classified and know about my Lightning (they're eerily similar BTW) you don't want to mess with the BIOS selector switch on the back of your card. It's intended for LN2 and other extreme cooling cases (read sub zero) so it makes lots of little tweaks that will affect your card in ways you don't need and possibly don't want when running on air. Specifically it likely removes any sort of overcurrent protection and allows the card to boot at sub zero temperatures (those in themselves wouldn't be a big deal on air cooling). But what I'm guessing it also does is increase some voltages to areas that you can't see, and possibly changes the VRMs switching frequency which would be my guess for the big temperature increase. So I would leave your card in the "normal" setting of your BIOS switch as opposed to the "OC" setting, you will still be able to overclock and overvolt your card without issue and it will be more appropriate for your air cooling needs.

Yes I can still overclock slightly in normal mode, but you can not touch the voltage in normal mode. You can only select different voltage settings in OC mode via evga precision. Although, from what I am seeing, in normal mode the voltage seems to be locked @1.15v steady. It doesnt go over at all. @ system idle is 0.923v. so I'm just going to switch it back to normal mode and stick with the 935, 1870,2156 OC which was running stable without issue. I was trying to go to 950 on the core but with 550 bucks invested on this card I really dont want it all screwed up due to weird voltages and heat issues.

Anyways all, Thanks for putting up with my questions and very noobish look at GPU overclocks. While I have been OCing systems for years I had never really had a high-end card that allowed for true ocing options like this.... I might have gotten in over my head for trying to keep things running on air. Maybe next month will be a new liquid cooling setup for CPU, MOBO and GPU. biggrin.gif

I guess I should be satisfied as I was able to benchmark 3dmark11 @ P7032. While its not super impressive for such a beefy card keep in mind its running with a maximus formula II mobo, ddr2 1066 ram and a qx9560 core 2 extreme (both of which are super outdated) but are still going strong. I already have a Z68 FTW mobo, I-7 2700k, and 16GB of G.skill ddr3 1866 (PC3 14900) ordered and on its way.
Edited by Ryanhabs - 1/30/12 at 3:30pm
post #2699 of 3582
Quote:
Originally Posted by friend'scatdied View Post

The Lightning isn't binned, unless it shares the same PCB as the GTX 580 Twin Frozr II/III non-Lightning.
The VRM circuity and PCB are top notch, but the GPU itself is the same luck-of-the-draw as with any GF110. Hence the stock overclock is pretty conservative.

Sure it is.
Quote:
Originally Posted by Ryanhabs View Post

Yes I can still overclock slightly in normal mode, but you can not touch the voltage in normal mode. You can only select different voltage settings in OC mode via evga precision. Although, from what I am seeing, in normal mode the voltage seems to be locked @1.15v steady. It doesnt go over at all. @ system idle is 0.923v. so I'm just going to switch it back to normal mode and stick with the 935, 1870,2156 OC which was running stable without issue. I was trying to go to 950 on the core but with 550 bucks invested on this card I really dont want it all screwed up due to weird voltages and heat issues.
Anyways all, Thanks for putting up with my questions and very noobish look at GPU overclocks. While I have been OCing systems for years I had never really had a high-end card that allowed for true ocing options like this.... I might have gotten in over my head for trying to keep things running on air. Maybe next month will be a new liquid cooling setup for CPU, MOBO and GPU. biggrin.gif
I guess I should be satisfied as I was able to benchmark 3dmark11 @ P7032. While its not super impressive for such a beefy card keep in mind its running with a maximus formula II mobo, ddr2 1066 ram and a qx9560 core 2 extreme (both of which are super outdated) but are still going strong. I already have a Z68 FTW mobo, I-7 2700k, and 16GB of G.skill ddr3 1866 (PC3 14900) ordered and on its way.

You should still be able to overvolt in normal mode, I'd check around in the settings of whatever OC program you are using for a "unlock voltage control" or similar. Or better yet try the latest beta of MSI AB it's generally the favorite OC tool and has wide compatibility even with a few non MSI non reference boards.
Edited by juano - 1/30/12 at 3:33pm
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post #2700 of 3582
I was all over the EVGA forums last night checking things out as I used to use afterburner with my GTX 560Ti 448, but it wouldn't do anything with my 580 classified ultra. I found a thread where it was confirmed by a few other members that they were seeing the same that afterburner was really having no interaction with the classified versions. A post from one of the product managers confirmed that the firmware in the classifieds is completely different than other 580's and the current versions of afterburner will not work with them. The precision tool from EVGA dose the same stuff as afterburner so its not a big deal really. Although, in the same post they also confirmed that you can not touch the volts unless you put the card in OC mode. Seeing that the card is @ 1.15v steady in normal mode I dont see any issues or any reason why I would need to bump the volts as I will never be running sub-zero cooling methods. Maybe I will mess with it more once I swap to a high performance water kit.
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