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[Official] NVIDIA GTX 780 Owner's Club - Page 1846

post #18451 of 24915

Very good Chomuco! thumb.gif

Salu2

Ed
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post #18452 of 24915
Quote:
Originally Posted by HeadlessKnight View Post

Thanks for the useful guide! thumb.gif , Learned a lot about GK110 by reading the guide that didn't know about before. With skyn3t bios and 1200mV I was able to get 1210 MHz (Gaming stable), unfortunately 1212mV didn't increase my clocks. What is the expected clock increase when LLC is disabled (at least what you guys got) ?

Thanks for the help .

LLC is a hit or a miss as i depends on the VRM's themselves whether they can sustain the current with Load Line Calibration at 100% or not!
Have a read from one of my articles:

IMO, The way LLC works makes some cards crash because the VRM's cannot cope with the sustained power without variation as its harder for them to sustain it! the overshoot with LLC at 100% (ON technologies, makers of the NCP4206/8 voltage controller labeled it at 0% but its really 100%) is actually higher than with LLC at default!
Voltage is not to worry about but the amperage drawn by the voltage increase, you can limit the TDP at a "safe" level (depends on the card) with the AB slider (thus limiting the amperage), make the necessary calculations with my formula to find the maximum drawn wattage:

aW x b% = cW (a= bios base TDP, b= OSD TDP, c= aproximate power draw)

Then convert it to Amps:

The current I in amps (A) is equal to the power P in watts (W), divided by the voltage V in volts (V):

I(A) = P(W) / V(V)

Knowing that: 6 Phase VRM´s (CORE) 60A each = 360A

The only voltage you can control is the core, so:

DC-DC = I(A) × V(V) = P(W) =» 360A x 1.6v = 576W Theoretical MAX Wattage for the core

Lets think "safe" but at the same time not restraining the chip: 360A x 80% = 288A

Amps to Watts:

The power P in watts (W) is equal to the current I in amps (A), times the voltage V in volts (V):
I(A) × V(V) = P(W)

288A x 1,20V = 245.6W
288A x 1.30V = 374.4W
288A x 1.40V = 403.2W

You can go lower depending on the cards needs! As every card is different in power draw you have to fiddle with it to find your best "safe" limit! thumb.gif


Just drop me a PM or leave a post @ whenever you need any help on anything! thumb.gif

Cheers

Ed

(Team skyn3t)
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post #18453 of 24915
Quote:
Originally Posted by OccamRazor View Post

Read my guide for some pointers: OCCAMRAZOR ADVANCED GK110 OC GUIDE
Then check your bios to see which revision you have, head out to the OP:http://www.overclock.net/t/1393791/official-nvidia-gtx-780-owners-club/0_100
Choose the appropriate bios, then get EZ3flash from my SIG, also my flash guide and flash the card, do the volt mod and be sure to read the warnings and BE CAREFUL! thumb.gif

Cheers

Ed

(Team skyn3t)

Thanks, I try it...
post #18454 of 24915
Does anyone know if the 780's with ACX dual bios. Or 780 from a step up still have the ability to unlock with AB up to 1.32v.

If I bought one from EVGA now would I have a problem using 1.32v ? LIke I do with my reference card I bought at launch.

http://www.evga.com/Products/ProductList.aspx?type=0&family=GeForce+700+Series+Family&chipset=GTX+780
 
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post #18455 of 24915
By the way... If you want to be lazy & not update to the non-update MSI-AB update, set your computer's date back. tongue.gif
Quote:
Originally Posted by UNOE View Post

Warning: Spoiler! (Click to show)
Does anyone know if the 780's with ACX dual bios. Or 780 from a step up still have the ability to unlock with AB up to 1.32v.

If I bought one from EVGA now would I have a problem using 1.32v ? LIke I do with my reference card I bought at launch.

http://www.evga.com/Products/ProductList.aspx?type=0&family=GeForce+700+Series+Family&chipset=GTX+780

That is an awesome question, I have wondered this about the B1 revision 780s, my self.
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post #18456 of 24915
Quote:
Originally Posted by UNOE View Post

Does anyone know if the 780's with ACX dual bios. Or 780 from a step up still have the ability to unlock with AB up to 1.32v.

If I bought one from EVGA now would I have a problem using 1.32v ? LIke I do with my reference card I bought at launch.

http://www.evga.com/Products/ProductList.aspx?type=0&family=GeForce+700+Series+Family&chipset=GTX+780

Quote:
Originally Posted by skupples View Post

By the way... If you want to be lazy & not update to the non-update MSI-AB update, set your computer's date back. tongue.gif
That is an awesome question, I have wondered this about the B1 revision 780s, my self.


Nop! 780FTW and 780 Dual bios have a different custom PCB! No joy for you im afraid! redface.gif


Cheers

Ed

(Team skyn3t)
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post #18457 of 24915
Quote:
Originally Posted by OccamRazor View Post


Nop! 780FTW and 780 Dual bios have a different custom PCB! No joy for you im afraid! redface.gif


Cheers

Ed

(Team skyn3t)

What about the reference step up cards
 
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post #18458 of 24915
Quote:
Originally Posted by UNOE View Post

What about the reference step up cards

Reference 780 cards have the NCP4206 voltage controller that with the voltmod gives you voltage control with Afterburner! thumb.gif
In any doubt PM me the model and i will give you the details about it! smile.gif

Cheers

Ed

(Team skyn3t)
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post #18459 of 24915
Quote:
Originally Posted by OccamRazor View Post

Reference 780 cards have the NCP4206 voltage controller that with the voltmod gives you voltage control with Afterburner! thumb.gif
In any doubt PM me the model and i will give you the details about it! smile.gif

Cheers

Ed

(Team skyn3t)

Thanks
 
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post #18460 of 24915
Quote:
Originally Posted by OccamRazor View Post

Dear Cerano, you could have PM'ed me! thumb.gif

Your card had a DIGI+ ASP1212 voltage controller, so the volt mod does not work, there is a way to get voltage control with your card but involves having a Rampage IV and a little wire soldering! wink.gif






Cheers

Ed

(Team skyn3t)

Ed,
I have two of the Asus GTX 780 TI DC2 OC, I watched the video yours was dead(found it at kingpin cooling) he shows how to do the VOLT MOD but not how to connect it(to the board) or what benefit it gives? I saw someone said like 10K in 3D tests, is this true if so where can I find out more? I have a RIVE board and would like to try it out. I kept the link for the video, just need some motivation n direction.....
Thanks!!!
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