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[Official] NVIDIA GTX 780 Ti Owner's Club - Page 842

post #8411 of 16504
The proper testing should be done in this fashion.

Step 1. Flash Skyn3t vbios and test card for maximum core clock @ 1.212v using PrecisionX
Step 2. Use KBT 1.27 to increase power target on stock bios and flash it to your card.
Step 3. Use Agent-A01's method to increase voltage above the default and test your card for maximum core clock.

You can skip step 1 if you've already done it.
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post #8412 of 16504
Quote:
Originally Posted by Agent-A01 View Post

Reread my post, you quoted it before i finished editing. A high clock means absolutely nothing about what i said. The first 580 Lightning i had would OC to 1ghz easy on stock voltage, but added voltage = artifacting. The other 2 cards i had would hit 1100mhz with extra voltage, neither of them had issues with high amounts of it either.
There is a reason why people say, high leakage cards are better for water. High asics cards have low leakage which tend to not play as well with voltage, and in your case not at all( or vrm temps)

What block do you have? EK is superior in vrm cooling,(but the instructions do not say to put thick thermal pads on the inductors which is a reason why some of these cards pop) and other blocks seem to only cool the phases and not the inductors. If a block has weak cooling in the vrm area, those things get hot, the stagnant air doesnt help either.
I also noticed that the Ti has a noticeably higher VTT voltage than the titan.. Another interesting fact

Also, try underclocking memory(test) cowie has had to do that for some cards to reach stability(including GK110)

My vrms are air cooled with heavy copper heatsinks and a 150cfm fan blowing directly on them with very cold ambient temps. I have a laser temperature reader as well. Vrm area never breaks 45c. You may be right about the leakage which is why I suggested for people with low asic to give it a shot. Hell everyone give it a try, its not hard at all. Just make sure you compare it with PrecisionX @ 1.212v on Skyn3ts vBios to make sure its worth it.
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post #8413 of 16504
Quote:
Originally Posted by Agent-A01 View Post

What block do you have? EK is superior in vrm cooling,(but the instructions do not say to put thick thermal pads on the inductors which is a reason why some of these cards pop) and other blocks seem to only cool the phases and not the inductors. If a block has weak cooling in the vrm area, those things get hot, the stagnant air doesnt help either.
I also noticed that the Ti has a noticeably higher VTT voltage than the titan.. Another interesting fact

Looks like 1372 / 3750 is game stable on this card at 1.212v. I haven't tested higher memory, which won't do much considering I am on a 1080p display. Really nothing to complain about!

http://www.3dmark.com/3dm/2601724

Regarding the EK waterblock, which area are you talking about from the attached picture? I am using the Nickel/Plexi EK block with the pads installed per the instructions.



Regarding whether or not this "work," has anyone actually seen any additional OC headroom above 1300? The fact that I can get it to artifact just after the 1.212v step suggests something other than "a card that doesn't like voltage" is going on here.
Edited by VETDRMS - 3/5/14 at 7:21pm
post #8414 of 16504
Quote:
Originally Posted by VETDRMS View Post

Looks like 1372 / 3750 is game stable on this card at 1.212v. Really nothing to complain about!

http://www.3dmark.com/3dm/2601724

Regarding the EK waterblock, which area are you talking about from the attached picture? I am using the Nickel/Plexi EK block with the pads installed per the instructions.



Regarding whether or not this "work," has anyone actually seen any additional OC headroom above 1300? The fact that I can get it to artifact just after the 1.212v step suggests something other than "a card that doesn't like voltage" is going on here.

Holy crap thats better than my card! I thought I had the best reference 780ti but damn. Can that 1372mhz run heaven without artifacts?
How about tomb raider with tressfx devil.gif
Edited by Chronic1 - 3/5/14 at 7:27pm
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Chronic
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post #8415 of 16504
Quote:
Originally Posted by Chronic1 View Post

My vrms are air cooled with heavy copper heatsinks and a 150cfm fan blowing directly on them with very cold ambient temps. I have a laser temperature reader as well. Vrm area never breaks 45c. You may be right about the leakage which is why I suggested for people with low asic to give it a shot. Hell everyone give it a try, its not hard at all. Just make sure you compare it with PrecisionX @ 1.212v on Skyn3ts vBios to make sure its worth it.

Ah you have a GPU block only, i still dont trust small sinks, copper is better than aluminum, but nothing beats water, individual sinks arent as good as the full cover plate either... Anyways make absolutely sure that everything circled in here is not too hot(just 1 thing here could potentially cause your artifacts), measuring the sinks probably isnt the best way to do it either because if they dont have full contact they wouldnt be asborbing all of the heat, best to measure those directly.




Anyways Id like for as many people to test this, and potentially gather enough data to solve out why some people can and some people can use it. Would be a lot easier if i had a Ti that wouldnt use voltage to figure this out, ah well.
Edited by Agent-A01 - 3/5/14 at 7:29pm
post #8416 of 16504
Quote:
Originally Posted by Agent-A01 View Post

Ah you have a GPU block only, i still dont trust small sinks, copper is better than aluminum, but nothing beats water, individual sinks arent as good as the full cover plate either... Anyways make absolutely sure that everything circled in here is not too hot(just 1 thing here could potentially cause your artifacts), measuring the sinks probably isnt the best way to do it either because if they dont have full contact they wouldnt be asborbing all of the heat, best to measure those directly.




Anyways Id like for as many people to test this, and potentially gather enough data to solve out why some people can and some people can use it. Would be a lot easier if i had a Ti that wouldnt use voltage to figure this out, ah well.

What temperature on the VRM's would you say is too hot? I heard they have a max temp of like 120c. So lets say worst case scenario mine reach up to 70-75c would that be ok?
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Chronic
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post #8417 of 16504
Quote:
Originally Posted by VETDRMS View Post

Looks like 1372 / 3750 is game stable on this card at 1.212v. I haven't tested higher memory, which won't do much considering I am on a 1080p display. Really nothing to complain about!

http://www.3dmark.com/3dm/2601724

Regarding the EK waterblock, which area are you talking about from the attached picture? I am using the Nickel/Plexi EK block with the pads installed per the instructions.



Regarding whether or not this "work," has anyone actually seen any additional OC headroom above 1300? The fact that I can get it to artifact just after the 1.212v step suggests something other than "a card that doesn't like voltage" is going on here.

The EK picture guide online is correct, but the ones sent out with the blocks did not have instructions to cover inductors, this was my case and several others in the titan thread.

I ended up taking block off and putting thick pads on them after i found out about that, and some cards have died because of that reason.
Quote:
Originally Posted by Chronic1 View Post

What temperature on the VRM's would you say is too hot? I heard they have a max temp of like 120c. So lets say worst case scenario mine reach up to 70-75c would that be ok?

My GTX 470 artifacted around 80C, 8800GT i had was around 85c, and the 580s i had were fine up to around 90c.. All VRMs are from different manufacturers built around different specs, each are designed for different ranges. It would be hard to give you an exact answer. Should 70-75c be good, sure most likely; is it possible that it is too high? of course it is. Just make sure all of them are well within close range of each other, make sure you dont have 1 thing thats just much hotter than the rest.
post #8418 of 16504
Quote:
Originally Posted by Instashox View Post

Looking to sell a 79.4% asic 780 Ti classy for a good clocking referenced PCB 780 Ti.

Reason? Moving to an itx case that doesn't fix not reference PCBs (780 ti classified).

Any takers?

Sorry man, you can't advertise sales outside the marketplace and you don't have enough rep for that either.
Quote:
Originally Posted by VETDRMS View Post

Looks like 1372 / 3750 is game stable on this card at 1.212v. I haven't tested higher memory, which won't do much considering I am on a 1080p display. Really nothing to complain about!

http://www.3dmark.com/3dm/2601724

Your poor GPU really needs a CPU upgrade to shine, but very impressive overclocks thumb.gif
post #8419 of 16504
Quote:
Originally Posted by Chronic1 View Post

Holy crap thats better than my card! I thought I had the best reference 780ti but damn. Can that 1372mhz run heaven without artifacts?
How about tomb raider with tressfx devil.gif

Heaven/Valley seems to run fine. Tomb Raider gameplay is fine but I noticed some tearing on the benchmark, to clear it up I had to step down to 1346 as there was a few blips at 1359. Temps above 30C at 1372 started showing tearing. There aren't a lot of ways to keep it cooler than this long term. I have been looking at aquarium chillers for this purpose, but I will go down that road later when I build a new system in the fall (Haswell-E possibly). I am building a house this spring/summer and will be exploring some direct AC systems for the computer lab room. wink.gif

This is what my board looked like before mounting the EK block:

post #8420 of 16504
you should be using the same size thermal pads on the R33 inductors, as you use everywhere else. Which is likely .5mm
Quote:
Originally Posted by VETDRMS View Post

Warning: Spoiler! (Click to show)
Heaven/Valley seems to run fine. Tomb Raider gameplay is fine but I noticed some tearing on the benchmark, to clear it up I had to step down to 1346 as there was a few blips at 1359. Temps above 30C at 1372 started showing tearing. There aren't a lot of ways to keep it cooler than this long term. I have been looking at aquarium chillers for this purpose, but I will go down that road later when I build a new system in the fall (Haswell-E possibly). I am building a house this spring/summer and will be exploring some direct AC systems for the computer lab room. wink.gif

This is what my board looked like before mounting the EK block:


I'm confused... Are you running past 1.212V or not? 1.212V is the max possible voltage you can get out of a bios, anything after that requires the commands,.
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