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[Official] NVIDIA GTX 780 Ti Owner's Club - Page 671

post #6701 of 16490
Quote:
Originally Posted by OccamRazor View Post

No such thing as bios cache or stored data, dont worry about it! thumb.gif
Always flash the appropriate brand modded bios for your card! you have it in the OP!


Cheers

Ed

(Team skyn3t)

Thanks for the reply... Great to know we can flash and re-flash (with the right bios model) without traces
post #6702 of 16490
For some reason I get incorrect gpu core readings when I adjust the voltage in precision x, is there any quick fix for that other than restarting my pc?
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post #6703 of 16490
hey, I was hoping to get vaildated so i could download some of the tools from this thread. my gpu validation is here http://www.techpowerup.com/gpuz/u85pm/
and this is my screenshot. is that all you need?
post #6704 of 16490
Hi
I have a question

I have 2 Tis
1 Inno3D iChill and a Windforce GB
The ichill runs at 1270/4000mhz 1.17v in GPU-Z
The Windforce 1250/3800mhz 1,20v in GPU-Z
All with the vendor Bios
Can I expect with the mod bios more?
post #6705 of 16490
Quote:
Originally Posted by rquinn19 View Post

I keep seeing a lot of talk about Tomb Raider. If I don't play that game and everything i do play and bench with is 100% rock solid stable, what difference does it make?

None. If the games you play and the programs you run don't crash your machine, if you're not having any odd issues, like BSOD after resume from sleep, or the mouse not working, then who cares?! I was trying to get my CPU stable w/ Prime95 and kept hitting ridiculous temps that were at least 20C higher than BF4 and Handbrake. Finally, I just said the hell with it. My quick test became a Youtube video + Handbrake + browsing Firefox...then some BF4. And now I'm even lazier. I just bump the CPU up a bit and use my PC like normal. Torture tests can eat it IMO. Benchmarks have their place so you can see if performance is relative to others, but for testing an OC...no thanks. Valley and 3DMark run fine, but BF4 or Tomb Raider require lower clocks.

I'm just saying that if you don't play that game, you'd be missing out on something very, very special. One of the best SP games I've ever played. Not to mention it looks fantastic!
post #6706 of 16490
Quote:
Originally Posted by Chomuco View Post

guaaauu !! custon..good !! Warning: Spoiler! (Click to show)



Does the heatsink/fan still rattle at certain rpms?
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post #6707 of 16490
Quote:
Originally Posted by TheBenson View Post

I have a pair of the ACX GTX 780 ti's and I'm wondering what is the best way to get a backplate for these, I been waiting for stock to show up at the EVGA store for awhile but I don't know if their auto-notify option is there because they actually intend to get more or just because they are OOS.

Do the cards get hot after a while because of the ACX's blowing in the case? I have one and was planning on getting a second one but now I'm not sure
post #6708 of 16490
Quote:
Originally Posted by OccamRazor View Post

No they arent... KPE is a card for heavy OC! Those who buy it thinking it will grant you higher OC on air will surely be disappointed! Its a card to put under water at minimum and optimal for LN2 and DICE!

That's what I meant that the coolers are for show, since you'd put on a block right away tongue.gif.
But, on that topic, why is it that you can achieve much higher clocks on water? Is that simply because of core temps, or does the vrm need cooling as well to achieve higher clocks (with the same voltage)? So, to say, my card at 1,212v would get higher clocks when cooling is better at the core? Or do the temps of the VRM play a significant role in voltage stability? I always wondered about that. Of course I know that temps do matter, but not in which degree. I mean, 60 degrees on air, or 40 degrees on water.

Also, are the kingpins locked to a specific max (higher than usual) voltage in normal BIOS, or do they need to be flashed as well with a custom BIOS?

Cheers 2 wink.gif
TJ
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post #6709 of 16490
Quote:
Originally Posted by OccamRazor View Post



Here was drawing more than 400W per card

These i got with tomb raider:


1306mhz / 1,37v / power draw 124% / load 99% 372W*
1333mhz / 1.37v / power draw 134% / load 99% 402W*
1359mhz / 1.37v / power draw 139% / load 99% 417W*
1385mhz / 1.37v / power draw 145% / load 99% 435W*
1400mhz / 1.39v / power draw 155% / load 99% 465W*
*Power draw just for one card

Cheers

Ed

(Team skyn3t)


So how does the system feed that card, 6+8pin + PCIe= roughly 300w..right?
post #6710 of 16490
Quote:
Originally Posted by kakakakaka View Post

That's what I meant that the coolers are for show, since you'd put on a block right away tongue.gif.
But, on that topic, why is it that you can achieve much higher clocks on water? Is that simply because of core temps, or does the vrm need cooling as well to achieve higher clocks (with the same voltage)? So, to say, my card at 1,212v would get higher clocks when cooling is better at the core? Or do the temps of the VRM play a significant role in voltage stability? I always wondered about that. Of course I know that temps do matter, but not in which degree. I mean, 60 degrees on air, or 40 degrees on water.

Also, are the kingpins locked to a specific max (higher than usual) voltage in normal BIOS, or do they need to be flashed as well with a custom BIOS?

Cheers 2 wink.gif
TJ

Here is a quote from one of my articles:

"Well, conductor materials tend to increase their resistivity with an increase in temperature!
The reasons for these changes in resistivity can be explained by considering the flow of current through the material. The flow of current is actually the movement of electrons from one atom to another under the influence of an electric field. Electrons are very small negatively charged particles and will be repelled by a negative electric charge and attracted by a positive electric charge. Therefore if an electric potential is applied across a conductor (positive at one end, negative at the other) electrons will "migrate" from atom to atom towards the positive terminal.
Only some electrons are free to migrate however. Others within each atom are held so tightly to their particular atom that even an electric field will not dislodge them. The current flowing in the material is therefore due to the movement of "free electrons" and the number of free electrons within any material compared with those tightly bound to their atoms is what governs whether a material is a good conductor (many free electrons) or a good insulator (hardly any free electrons).
The effect of heat on the atomic structure of a material is to make the atoms vibrate, and the higher the temperature the more violently the atoms vibrate.
In a conductor, which already has a large number of free electrons flowing through it, the vibration of the atoms causes many collisions between the free electrons and the captive electrons. Each collision uses up some energy from the free electron and is the basic cause of resistance. The more the atoms jostle around in the material the more collisions are caused and hence the greater the resistance to current flow.
So to sum it up, we want lower temperatures which lead to lower electrical resistance, hence having less heat produced as waste and more power to our Titans/780´s cores to OC higher! thumb.gif"


Yes, the KPE's come locked with 1,187V, 330W TDP with 115% MAX ( 380W), nvidia had to lock them out due to their "green light" program! tongue.gif
Soon more will be revealed about the KPE on our thread here: http://www.overclock.net/t/1459307/official-evga-780-ti-classified-k-ngp-n-owners-club/0_100#post_21587546


Cheers

Ed

(Team skyn3t)
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