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[Official] NVIDIA GTX 780 Owner's Club - Page 1770

post #17691 of 24915
Quote:
Originally Posted by Heruur View Post

I ended up selling the one I got, couldnt oc for crap, even with skys bios.


Guess I got the lucky pick of the bunch ..You just never know what overclock you get from the same Item ..
post #17692 of 24915
Quote:
Originally Posted by blackhole2013 View Post

Guess I got the lucky pick of the bunch ..You just never know what overclock you get from the same Item ..

Just curious... what's the ASIC quality of your card(s)?
post #17693 of 24915
Quote:
Originally Posted by crazysoccerman View Post

Just curious... what's the ASIC quality of your card(s)?


68.6 is that supposed to be good ?
post #17694 of 24915
not a thing overclocked. just 2 gtx 780s in sli.
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Realtek ALC 888s TP link gigabit lan 
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post #17695 of 24915
Quote:
Originally Posted by blackhole2013 View Post

68.6 is that supposed to be good ?

Here is a quote from one of my articles:

"ASIC score is more an indication for nvidia and amd and for us only a measure of leakage in our chips (thanks to W1zzard from TechPowerup we can see the value in GPUz), its good to know the ASIC if youre going to run SLI because it want to have closely similar ASIC score on your cards because they will have similar voltages and you can clock/volt them together without having to go separate settings if you get big difference ASIC ( i.e: 60% - 80%)
@TSMC for nvidia and FAB1 for AMD, as the chips are removed from the waffer, tested and fused with the voltage is reflected on the leakage of every chip

Originally Posted by Dave Baumann Product manager AMD
"Actually, it does the opposite! We scale the voltage based on leakage, so the higher leakage parts use lower voltage and the lower leakage parts use a higher voltage - what this is does narrow the entire TDP range of the product. Everything is qualified at worst case anyway; all the TDP calcs and the fan settings are completed on the worst case for the product range"

A high leakage card operates at lower voltage to balance the otherwise higher power draw and temps. It will also overclock higher than what a low leakage card would. The problem is though, cards usually have a limit of voltage increase, i.e. say +150mV , which means AB could overvolt a 1.15V card to 1.3V, but a 1.1V card would crash above 1.25V.

A high leakage card is what you want if you do extreme OC, and you can keep the card cool (H20,LN2 etc.). Your mileage will vary of course, not all low VID cards are good OC cards, and not all high VID cards OC bad. It's a part of product binning, they try to fit in as many chips as possible to a similar ASIC spec.

From "the man" himself:

"it's from the gpu silicon, and it's used to calculate the gpu voltage.

"bad" gpus get a higher voltage so they make the default clock. "good" gpus can do it with lower voltage

as you've seen in this thread, the scale for nvidia isnt perfect yet, so i'll apply some fixes once I have more data that suggests the typical ranges of gpu leakages

W1zzard - Techpowerup"



Cheers

Ed

(Team skyn3t)

Edited by OccamRazor - 2/18/14 at 5:47am
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post #17696 of 24915
Quote:
Originally Posted by blackhole2013 View Post

68.6 is that supposed to be good ?

The one i had was 88%; seems to line up with what occam posted
post #17697 of 24915
post #17698 of 24915
Is it safe when my GPU keeps hitting the temp limit (which is at 79c right now) while playing games?
Then it just stays at 79c...
Kinda rookie at all this overclocking thing... so needed to ask.
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post #17699 of 24915
Quote:
Originally Posted by Leopard2lx View Post

I can't secure it unless I drill holes on the top of the case which I really don't want to do.

What do you guys think?

Velcro strips (or dots) FTW!

LINK: http://www.staples.com/VELCRO-Brand-Sticky-Back-Coins-5-8-inch-Black-75-sets/product_613257
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post #17700 of 24915
Quote:
Originally Posted by villAni View Post

Is it safe when my GPU keeps hitting the temp limit (which is at 79c right now) while playing games?
Then it just stays at 79c...
Kinda rookie at all this overclocking thing... so needed to ask.


Yes, its fine!

Read my guide for some pointers: OCCAMRAZOR ADVANCED GK110 OC GUIDE



And: Fill your SIG with your RIG, it helps US to help YOU! thumb.gif
You have a link in my SIG!



Cheers

Ed

(Team skyn3t)
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