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[Official] EVGA Classified & K|NGP|N Owner's Club - Page 1102

post #11011 of 21377
Quote:
Originally Posted by Tyhuynh View Post

I'm trying to go tri sli with 2 classy 780 and a gigabyte 780. I have installed hypersli, but my maximus vi formula doesn't detect the gigabyte.. Everything is plugged and secured. Any ideas?

Maximus VI formula support 3 way crossfire but doesn't support 3 way SLI. Only 2 or quad SLI (2 x nvidia 690).
That's way you have only one SLI bridge.
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post #11012 of 21377
Quote:
Originally Posted by vmanuelgm View Post

Hello guys.

Anyone having stabililty issues with 780ti classies sli (2way) with vsync disabled??

I used skyn3t bios, 1212.rom, and 1212a, with same result. Unstability after some minutes in games like Crysis 3.

Could it be power related?? I tried 2 power supplies to overclock over 1420, but with an oc of 1202 I dont think my Lepa G1600 is not enough.

Have the sli under water on a rampage iv black with 0602 bios and a 4930k overclocked to 4,7.

With ln2 original seems there is no problem.

Thanks in advance.


I answer myself.

One of the classies is defective. I am gonna send it back to reseller.
post #11013 of 21377
Thread Starter 
Quote:
Originally Posted by DeXel View Post

You forgot me. Thanks!

Could you do me a favor and post your gpuz validation again. Thanks, sorry.

Quote:
Originally Posted by Jenova69 View Post

Forgot me. Thank you!


I got you, I must have not hit multi quote on your post. Sorry.
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post #11014 of 21377
Thank you! So other than temps is there anything i need to watch for when raising the voltage on these cards past 1.212v? I set up my pc in the garage to run some benches last night and the highest temps i saw was 39c@1.212v. I'm using the stock cooler but the ambient temps are super low this time of year. Would i be alright going to 1.3-1.35v as long vrm and core temps stay in check?
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post #11015 of 21377
Quote:
Originally Posted by strong island 1 View Post

Could you do me a favor and post your gpuz validation again. Thanks, sorry.

Is something up with the old one? Just wondering.

http://www.techpowerup.com/gpuz/aws29/
Quote:
Originally Posted by WebTourist View Post

Maximus VI formula support 3 way crossfire but doesn't support 3 way SLI. Only 2 or quad SLI (2 x nvidia 690).
That's way you have only one SLI bridge.

He tried to use HyperSLI (the hack) to make it work. Still no idea why it doesn't even detect it.

Does it detect Gigabyte card by itself?
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post #11016 of 21377
Quote:
Originally Posted by WebTourist View Post

Quote:
Originally Posted by Tyhuynh View Post

I'm trying to go tri sli with 2 classy 780 and a gigabyte 780. I have installed hypersli, but my maximus vi formula doesn't detect the gigabyte.. Everything is plugged and secured. Any ideas?

Maximus VI formula support 3 way crossfire but doesn't support 3 way SLI. Only 2 or quad SLI (2 x nvidia 690).
That's way you have only one SLI bridge.

So hypersli wouldn't work? Also why doesn't my mobo detect the gigabyte now when it used to before? The gigabyte powers on normally and plugged in securely. Just no detection by bios of windows.
So before I found out about hypersli and installed it, my mobo detects the 3rd card running at x4, and windows detects 3x 780 but can't sli any. Now the 3rd card won't be detected....?
post #11017 of 21377
Quote:
Originally Posted by Jenova69 View Post

Thank you! So other than temps is there anything i need to watch for when raising the voltage on these cards past 1.212v? I set up my pc in the garage to run some benches last night and the highest temps i saw was 39c@1.212v. I'm using the stock cooler but the ambient temps are super low this time of year. Would i be alright going to 1.3-1.35v as long vrm and core temps stay in check?

I've benched at 1.3 and 1.35 (very quick runs) on air. I find that voltage doesn't seem to be the limiting factor on air. After a certain point I can't go higher with the frequency, even adding more voltage. I think from this thread and my own experiences that the higher you go on the voltage, the lower you have to keep the temps for stability. It sounds like your garage is pretty chilly so try it out.

There are many buried posts about the 780 Classified where people were stuck at 1280 or 1306 and couldn't go higher on air. Then they switched to water and were able to get to 1400.

For quick benches on air with good temps I would say don't worry about 1.3 or 1.35. For anything other than that on air I would try to keep it at 1.25 or lower.
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post #11018 of 21377
What are some good temps for gaming with the 780 ti. Right now I have the voltage set to about 1.26 and Im getting about 75 on the core and 69 on memory. Obviously air cooled.
post #11019 of 21377
Quote:
Originally Posted by NvidiaFan29 View Post

What are some good temps for gaming with the 780 ti. Right now I have the voltage set to about 1.26 and Im getting about 75 on the core and 69 on memory. Obviously air cooled.

That seems pretty standard. With a custom fan curve you can probably knock off another 5C if you're not already using one.
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post #11020 of 21377
Could someone please confirm this either way, I'm planning on skipping the next gen completely so for now I'm just doing small OC and using PWM. What I'd like to know is what is the "real voltage".

If using AB only and raising that by 100, you get the usual 1.21v. This doesn't give me a very nice overclock at all.

So I use the Classy tool and simply put 1.225v and 312 PWM. This has allowed another 3 steppings at least, still raising it to see where BF4 stops liking it.

tl;dr, how much higher is this 1.225v + 312 PWM vs. 1.212v + 260 PWM?
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