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[Official] EVGA Classified & K|NGP|N Owner's Club - Page 1146

post #11451 of 21380
Quote:
Originally Posted by IAmTheNorwegian View Post

Since i am currently running a fake windows 8 pro, Will it decrease my Oc capabilities?

I doubt it.
post #11452 of 21380
Anyone have any suggestions about removing visual artifacts? Or have I just hit a core speed that isn't going to be pretty?
post #11453 of 21380
Quote:
Originally Posted by draemn View Post

Anyone have any suggestions about removing visual artifacts? Or have I just hit a core speed that isn't going to be pretty?

Artifacts can be created by a number of things:

1.Heat.
2.To much or to little voltage with desired core clock.
3.Unstable Vram OC
post #11454 of 21380
Quote:
Originally Posted by JySzE View Post

Artifacts can be created by a number of things:

1.Heat.
2.To much or to little voltage with desired core clock.
3.Unstable Vram OC
1) Heat is not an issue (under 65 degrees)
2) I know I can't go lower on the core voltage as I just crash. I haven't tried pushing the voltage too high to see if that will fix it (only tried 10-20 mV bump), but I have tried PWM as high as 508 Khz but going that high caused it to crash, 416 kHz didn't remove artifacts but didn't crash.
3) I've had the vram stable at +720 and I'm using +680 and it is stable at 1410 mhz core (no artifacts). I still get artifacts if I only oc the core (past 1420 mhz).

Based on this, would you say I should be looking into tweaking voltages more, looking at memory again, or just giving up on removing artifacts at anything over 1420 mhz core?

Edit: I did some more testing and having the right PWM makes a big difference in how bad the artifacting is (but didn't fully remove it), the memory voltage has barely any impact (I have great memory), the PEXVDD does not seem to have any impact on artifacting. I do not feel comfortable with pushing the core voltage (plus I can't stay under 65 degrees if I do) past 1.39v for testing so I'd say I just won't be able to remove artifacts when going past 1420 mhz core.
Edited by draemn - 4/20/14 at 3:32pm
post #11455 of 21380
Quote:
Originally Posted by draemn View Post

1) Heat is not an issue (under 65 degrees)
2) I know I can't go lower on the core voltage as I just crash. I haven't tried pushing the voltage too high to see if that will fix it (only tried 10-20 mV bump), but I have tried PWM as high as 508 Khz but going that high caused it to crash, 416 kHz didn't remove artifacts but didn't crash.
3) I've had the vram stable at +720 and I'm using +680 and it is stable at 1410 mhz core (no artifacts). I still get artifacts if I only oc the core (past 1420 mhz).

Based on this, would you say I should be looking into tweaking voltages more, looking at memory again, or just giving up on removing artifacts at anything over 1420 mhz core?

Put the mem. back to stock settings and rebench with valley @ 1450 Mhz core, (stock)Mhz memory (6008), 1.38v / 1.60/ 1.05 / 416 kHz

If you get artifacts check your temps (VRM and GPU temp). If your temps arent the problem still, Then increase your voltage. If you still get artifacts after increasing the voltage to the limit your comfortable of setting it, then reduce the core clock.

Once you find a stable core clock and voltage combo that doesnt crash or cause artifacts, then start testing your mem oc, with the stable core clock oc set aswell. During that test if you get any artifacts it will be the memory OC that is unstable and you should then proceed to reduce it until stable.

Just my advice on doing it. thumb.gif
post #11456 of 21380
Hey guys, I have a question. Has an average OC been established for a 780 Classified that's just stock? I'm curious because I'm debating if I should get one over an ftw or sc. I won't be watercooling because I only plan on keeping the card for a year or so and this my first build. With that said I'd really like to eek out as much performance, safely, to raise my fps while playing bf4. I'll have a 144hz monitor so getting the fps up high will be important.
post #11457 of 21380
Quote:
Originally Posted by minimalist View Post

Hey guys, I have a question. Has an average OC been established for a 780 Classified that's just stock? I'm curious because I'm debating if I should get one over an ftw or sc. I won't be watercooling because I only plan on keeping the card for a year or so and this my first build. With that said I'd really like to eek out as much performance, safely, to raise my fps while playing bf4. I'll have a 144hz monitor so getting the fps up high will be important.
You mean average boost of a stock regular 780 classified? Most Classies do like mid 1250s on up to 1333 @ 1.212. If you have good cooling and or don't care about noise it will show a marked improvement over virtually any other 780.
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Valiance
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post #11458 of 21380
Just about to buy a eVGA GTX770 2G Superclocked w/ ACX Cooler, is it worth it or would something else be a better choice? Dont have the money for an 780 but a r9 290 is the same price as this 770
post #11459 of 21380
Quote:
Originally Posted by draemn View Post

Anyone have any suggestions about removing visual artifacts? Or have I just hit a core speed that isn't going to be pretty?

You've hit your limit for the voltage/temperature conditions of your GPU. Your already rather high up voltage wise as the Classy Tool sets idle voltages, load voltage is often well higher. Your running benchmark voltages, those aren't safe by any means. The card and core can take it, but if you have a weak link somewhere, that's enough voltage to find it if you give it enough time.

Here is a thread by an EVGA engineer with a random card pulled from the assembly line showing such voltage climb: http://kingpincooling.com/forum/showthread.php?t=2549 This will also climb a little higher at higher frequencies and a little higher still depending on PWM setting and core temperature (not much, but it's there).

Adding voltage may help, but since you are already rather high - you may not find it worth it for the risk. If you do and it makes it worse, then your definitely temperature bound. There are many GK110 cores that wet themselves when only a little hot and heavily overvolted.

There are people who have gone faster by backing off the voltage on Classies at high over-volts/overclocks. The OP of this thread is one of them.

To see if your card is one of them, drop your mem OC to stock first. Then drop your core voltage a tick while keeping PWM rather high - you can try a tick to PEXVDD, but for many cards, this does nothing. I would try lowering the voltage several times before I would give up. If it works, then find your stable core OC and then bring your memory OC back up. Best of luck to you.
Quote:
Originally Posted by darkelixa View Post

Just about to buy a eVGA GTX770 2G Superclocked w/ ACX Cooler, is it worth it or would something else be a better choice? Dont have the money for an 780 but a r9 290 is the same price as this 770

A R9 290 would be a better buy than the Superclocked 770, especially at higher resolutions/details/AA. You may pay a little bit more for a Tri-X, but you'll get a whole lot more performance/quietness out of it than a reference model. You may want to ask your question in the General Graphics forum if you want more feedback. This thread isn't going to give you what your looking for as we all have 780 and 780 Ti Classifieds.
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post #11460 of 21380
So I'm now planning on buying other stuff from the store which has these: MOS-C10.

Did anyone actually use them and did you see any benefit from them? obviously mine has a block on it already but as we know, this area isn't covered.. and I'm not actually even 100% sure where to put these?
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