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post #51 of 1059
We will see far better oc's once someone finds out, tool or otherwise, how to get a higher power limit for us wink.gif. This will let us set voltage directly and not get taken back to lower clocks. I saw some very good info on how it all worked in one of the articles, trying to find it again now. However, not all games load the gpu's in the same way, so overclocks even with identical settings will vary some in different games. The long and the short of it is, we're going to need a bit bigger of a hammer (better, unlocked tool) to really unleash these things.

Remember as well, when heat increases, so does power consumption on a GPU due to leakage wink.gif. Higher fan settings will also enable better overclocks, or superior cooling methods, to an extent.

Here is a fairly deep-dive article, translated, regarding some of the Kepler quirks http://translate.google.com/translate?sl=auto&tl=en&js=n&prev=_t&hl=en&ie=UTF-8&layout=2&eotf=1&u=http%3A%2F%2Flab501.ro%2Fplaci-video%2Fnvidia-geforce-gtx680-partea-ii-studiu-de-overclocking

http://translate.googleusercontent.com/translate_c?hl=en&ie=UTF8&prev=_t&rurl=translate.google.com&sl=auto&tl=en&twu=1&u=http://lab501.ro/placi-video/nvidia-geforce-gtx-680-partea-i-performanta/4&usg=ALkJrhhpGNF_RTR9hQnndHrqZu1WGmUiNQ

Notice anything interesting about what they could reach with different settings and the epower board? thumb.gif They also mention wishing for higher limit tools to be released and needed for voltage and power target. Additionally, non-reference versions with better VRM's/power inputs will reach far, far better clocks.
Edited by GoldenTiger - 3/23/12 at 9:33pm
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post #52 of 1059
Thread Starter 
Quote:
Originally Posted by GoldenTiger View Post

We will see far better oc's once someone finds out, tool or otherwise, how to get a higher power limit for us wink.gif. This will let us set voltage directly and not get taken back to lower clocks. I saw some very good info on how it all worked in one of the articles, trying to find it again now. However, not all games load the gpu's in the same way, so overclocks even with identical settings will vary some in different games. The long and the short of it is, we're going to need a bit bigger of a hammer (better, unlocked tool) to really unleash these things.
Remember as well, when heat increases, so does power consumption on a GPU due to leakage wink.gif. Higher fan settings will also enable better overclocks, or superior cooling methods, to an extent.
Here is a fairly deep-dive article, translated, regarding some of the Kepler quirks http://translate.google.com/translate?sl=auto&tl=en&js=n&prev=_t&hl=en&ie=UTF-8&layout=2&eotf=1&u=http%3A%2F%2Flab501.ro%2Fplaci-video%2Fnvidia-geforce-gtx680-partea-ii-studiu-de-overclocking
http://translate.googleusercontent.com/translate_c?hl=en&ie=UTF8&prev=_t&rurl=translate.google.com&sl=auto&tl=en&twu=1&u=http://lab501.ro/placi-video/nvidia-geforce-gtx-680-partea-i-performanta/4&usg=ALkJrhhpGNF_RTR9hQnndHrqZu1WGmUiNQ
Notice anything interesting about what they could reach with different settings and the epower board? thumb.gif They also mention wishing for higher limit tools to be released and needed for voltage and power target. Additionally, non-reference versions with better VRM's/power inputs will reach far, far better clocks.

You can increase the TDP to 132% already if that's what you are talking about. My card is going no where near 132%, highest I saw it go was 109%.
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post #53 of 1059
Ok, I found a post explaining clearly what I thought was the deal in practice... you need to keep thermals in check for it to keep bumping towards your actual target properly, be stable, etc.


mwparrish: "Yeah, I've been testing mem in OC Scanner for 30 minutes and am up to +325 without issues... the Mem Controllers are sick!

Dextar, watch your temps... the card is smart enough to begin down clocking / down volting as it gets into the upper 70s.

There's a sweet spot to find for a max OC that's between the max OC that it can handle and the max OC it can push while staying in the sweet spot of the thermals.

So far in SLI, I can do +145 in OC Scanner at 132% draw, but above that... driver crash. As I observed in OC Scanner the +145 yielded a pretty nice 1263 MHz but as the temps climbed toward 80*C, it started throttled back 1220s, etc.

Food for thought. Love how intelligent the cards are though but it makes finding the best OC a bit trickier!
"
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post #54 of 1059
If you get a driver crash you will need to go back into OC tool, hit default then reapply the OC.
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post #55 of 1059

After reading everyones OC ability on these cards im pretty happy I cancelled my 680 order today.

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post #56 of 1059
Quote:
Originally Posted by JedixJarf View Post

After reading everyones OC ability on these cards im pretty happy I cancelled my 680 order today.

I think people just aren't used to how they work yet, honestly... you need to balance settings + temperatures + fan speeds to reach a max oc. I really can't wait until monday when I can play with these things myself (2x eVGA coming in then).

Just to note, here's an example of 1420mhz by running fan at full speed:

http://kingpincooling.com/forum/showthread.php?t=1681
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post #57 of 1059
Thread Starter 
Quote:
Originally Posted by GoldenTiger View Post

Ok, I found a post explaining clearly what I thought was the deal in practice... you need to keep thermals in check for it to keep bumping towards your actual target properly, be stable, etc.
mwparrish: "Yeah, I've been testing mem in OC Scanner for 30 minutes and am up to +325 without issues... the Mem Controllers are sick!

Dextar, watch your temps... the card is smart enough to begin down clocking / down volting as it gets into the upper 70s.

There's a sweet spot to find for a max OC that's between the max OC that it can handle and the max OC it can push while staying in the sweet spot of the thermals.

So far in SLI, I can do +145 in OC Scanner at 132% draw, but above that... driver crash. As I observed in OC Scanner the +145 yielded a pretty nice 1263 MHz but as the temps climbed toward 80*C, it started throttled back 1220s, etc.

Food for thought. Love how intelligent the cards are though but it makes finding the best OC a bit trickier!
"

I've thoroughly tested my +500 mem and it seems fine, I can even go to +510 without issues but there's really no point. +135 core seems fine, +140 crashes. I'm keeping my card at <75C due to the declocking.
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post #58 of 1059
BTW, optimal thermals is 60-70C. If you can keep the GPU temp within this range you will be in the higher bracket that allows you to maintain the max clocks possible.
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post #59 of 1059
Quote:
Originally Posted by Murlocke View Post

I've thoroughly tested my +500 mem and it seems fine, I can even go to +510 without issues but there's really no point. +135 core seems fine, +140 crashes. I'm keeping my card at <75C due to the declocking.

You need to set your fan speed manually, if it hits the 70+ish range it will automatically lower voltage & speeds to stay within that temperature range.

EDIT:
Quote:
Originally Posted by EVGA-JacobF View Post

BTW, optimal thermals is 60-70C. If you can keep the GPU temp within this range you will be in the higher bracket that allows you to maintain the max clocks possible.

Heh, 30 seconds apart smile.gif. Good to know I was posting the right thing... 3 seconds later tongue.gif. Thanks for the solid and confirmed info.
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post #60 of 1059
Quote:
Originally Posted by GoldenTiger View Post


I think people just aren't used to how they work yet, honestly... you need to balance settings + temperatures + fan speeds to reach a max oc. I really can't wait until monday when I can play with these things myself (2x eVGA coming in then).
Just to note, here's an example of 1420mhz by running fan at full speed:
http://kingpincooling.com/forum/showthread.php?t=1681


I wont argue with you there, it will be interesting to see what the majority is that people can oc these too, but also im sure the one kingpin is playing with was cherry picked.

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