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[Official] EVGA Classified & K|NGP|N Owner's Club - Page 1005

post #10041 of 21377
With the skynet bios on my 780 classy and since I'm still on air all i go to is 1.212v on the core and i only barely start to artifact at 1350mhz core which is 239+ for me.

But i cannot seem to go above 1650mhz on the memory at all. Using valley or heaven, i can leave my clocks at 1111mhz and i will just crash out at about 1675mhz mem.

My card has hynix memory at a 78.9% ascics rating. I guess i just got unlucky with the memory but I'm thinking I'm doing very decent as far as the core clocks. I tried running 1400mhz at 1.25v in valley but my temps were heading north of 84c quickly so i just stopped the test since I'm not trying to push it. Down the road when i get a 240rad+ekwb i will play more.

But what should i do about my memory? Besides the core voltage in the classy voltage tool, what exactly do the rest of the settings do? Im assuming the memory voltage is the one that starts at like 1.60v and goes up to like 1.70v!!??
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post #10042 of 21377
Quote:
Originally Posted by nikoli707 View Post

With the skynet bios on my 780 classy and since I'm still on air all i go to is 1.212v on the core and i only barely start to artifact at 1350mhz core which is 239+ for me.

But i cannot seem to go above 1650mhz on the memory at all. Using valley or heaven, i can leave my clocks at 1111mhz and i will just crash out at about 1675mhz mem.

My card has hynix memory at a 78.9% ascics rating. I guess i just got unlucky with the memory but I'm thinking I'm doing very decent as far as the core clocks. I tried running 1400mhz at 1.25v in valley but my temps were heading north of 84c quickly so i just stopped the test since I'm not trying to push it. Down the road when i get a 240rad+ekwb i will play more.

But what should i do about my memory? Besides the core voltage in the classy voltage tool, what exactly do the rest of the settings do? Im assuming the memory voltage is the one that starts at like 1.60v and goes up to like 1.70v!!??

NVDD is voltage for GPU

FBVDD is Framebuffer voltage

PEXVDD is PCIExpress Voltage

I haven't messed with the other two.
post #10043 of 21377
Quote:
Originally Posted by strong island 1 View Post

the only reason I haven't updated the nvflash is because the current version has worked perfectly for me for the 780 classy, ti and kingpin. I figure why mess with a good thing. But i can add a newer version. I should also add a disclaimer about needing to use the classy tool and to not rely on software for voltage monitoring.

The reason I started using NVFlash v5.142 is because I couldn't backup my BIOS (780 Classified B1) with the OP version. No need to update it but maybe add a note that there's a newer version to try if it's not working.

This thread is amazing. I've learned a lot, and I like the fact that is spans Classified cards. I buy something and then when I upgrade I basically stop visiting that club thread. I'm glad that no matter what Classy I have I can come read in the same club.
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post #10044 of 21377
Please add me to the list of owners!

http://www.techpowerup.com/gpuz/86xxu/
post #10045 of 21377
Quote:
Originally Posted by nikoli707 View Post

With the skynet bios on my 780 classy and since I'm still on air all i go to is 1.212v on the core and i only barely start to artifact at 1350mhz core which is 239+ for me.

But i cannot seem to go above 1650mhz on the memory at all. Using valley or heaven, i can leave my clocks at 1111mhz and i will just crash out at about 1675mhz mem.

My card has hynix memory at a 78.9% ascics rating. I guess i just got unlucky with the memory but I'm thinking I'm doing very decent as far as the core clocks. I tried running 1400mhz at 1.25v in valley but my temps were heading north of 84c quickly so i just stopped the test since I'm not trying to push it. Down the road when i get a 240rad+ekwb i will play more.

But what should i do about my memory? Besides the core voltage in the classy voltage tool, what exactly do the rest of the settings do? Im assuming the memory voltage is the one that starts at like 1.60v and goes up to like 1.70v!!??
You got a nice card. Just be glad you can hit 1300Mhz on the core. 6.6Ghz for the memory isn't too bad. I'm running my card at 1267 core and 7.5Ghz memory super stable. I can run it faster in benches but I'm not much of a bencher.

Have you tried running heaven for at least an hour at max settings? I found that at 1440p + max settings in Heaven is the perfect test for stability. I usually run it between 2-4 hours. 6 hours if I have time. If it passes without issue, I'm good to go in any game.
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post #10046 of 21377
Quote:
Originally Posted by Neer View Post

Looks like later classies are built kinda poor. Mine has same Bios, same memory and just 60.8 ASIC.
What is default GPU voltage on skyn3t rev 4 BIOS?
I couldnt unlock 1.3 voltage on MSI AB beta 18, using 3:20 or 4:20 gets the same result - invalid. And AB voltage slider doesnt increase or decrease voltages ( AB shows 1.187 all the time) no matter where i set the slider. Skyn3t rev 4 Bios. Any ideas?
you should not be using those commands unless you have a ref 780 or titan. if you have a 780 classified there is a tool to use to add voltage...........
Edited by lilchronic - 3/5/14 at 3:09pm
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post #10047 of 21377
Testing the gpu voltage with a multimeter shows that when Classified Controller is set at 1.3, it's actually @ 1.296...pretty dang close lol.thumb.gif When at .887 on both Precision and Classified controller I'm at .884; so it's obviously system specific.
Edited by gatesmarch - 3/5/14 at 4:07pm
post #10048 of 21377
Thread Starter 
Quote:
Originally Posted by gatesmarch View Post

Testing the gpu voltage with a multimeter shows that when Classified Controller is set at 1.3, it's actually @ 1.296...pretty dang close lol.thumb.gif When at .887 on both Precision and Classified controller I'm at .884; so it's obviously system specific.

ya and if you raise the pwm frequency the voltage should actually go up underload. vdroop really isn't an issue with these cards at all.
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post #10049 of 21377
Quote:
Originally Posted by strong island 1 View Post

ya and if you raise the pwm frequency the voltage should actually go up underload. vdroop really isn't an issue with these cards at all.
So if you want the most accurate voltages possible the pwm frequency should be kept stock? At one point I raised it to 400 but now it's back at 260khz.
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post #10050 of 21377
Thank you for your answers, guys.

Quote:
Originally Posted by coelacanth View Post

Go to the OP and read. Also read @OccamRazor's OC guide.
I believe that skyn3ts default voltage is the same as the stock BIOS, or maybe a little bump? Not sure.
You're going to want to flash a custom BIOS and use the Classy Tuner tool for voltage before you declare that your card stinks.

Thank you. No, i didn't write that my card stinks, just has low asic reading (60.8%). And i have skyn3t rev 4 bios flashed already wink.gif Well, anyway, skyn3t increased core mhz from 993 to 1110.5, so i thought maybe he increased voltage as well, cause PX reads 1.2 on load. I'm not extreme overclocker, not under water, so don't wanna push it too far. Thought to go up to 1.212 and push as far and as stable as i could on that voltage. But PX reads 1.2, my card stable 1200/6k (didnt try to overclock memory yet), temps not exceeding 63, so maybe i'll try Classy voltage tuner, to push it a bit more.
Quote:
Originally Posted by strong island 1 View Post

your not supposed to use afterburner or precision for the voltage control. i make sure they are always unchecked. you need to use the classy software tool on the first page or an evbot. Also don't rely on software for voltage monitoring. you can only rely on a dmm.

Well, i thought about going only to 1.212, cause i'm on air. Thought i could do that on PX or AB. But every software program i used (PX, AB, Hwinfo, gpu-z) shows different voltage readings wink.gif And they dont change if i, for example trying to increase it on PX or AB. So probably skyn3t Bios rev 4 has 1.212 set already and only PX shows it correctly..
Quote:
Originally Posted by lilchronic View Post

you should not be using those commands unless you have a ref 780 or titan. if you have a 780 classified there is a tool to use to add voltage...........

Thank you for that. I wasn't sure about it.
Edited by Neer - 3/5/14 at 4:29pm
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