Edge3903

I do have a question....I know that when you turn up the voltage in the voltage tuner, it will not show a higher voltage in PX....just the higher temps will show. I was doing some testing on my card last night and find my max mem clock of +685 offset and my max core of +220 offset. When testing the mem and the core's offset the other setting were set to zero.When I use the voltage tuner I changed the NVVDD value up to 1.25v to testing the core OC. But before I tested the OC, I restarted my PC.( not a cold boot), After the PC restarted back into win's 8, I did see that the NVVDD voltage was set to 1.25v....Now here's where it gets odd. I then ran EVGA OC Scanner X to test the OC on the core, with the higher voltage and a +220 offset on the core, PX would not read out over 1000 ever. All I would get is the higher temps and that is it...

SO...I then I want back to the idea, OK I just try to find the max combined OC I can....Valley will lock up on me even time I try to push it over 1320 on the core....I see that it hits its voltage limit just after Valley loads....I have not flashed my LN2 BIOS with a mod BIOS yet....

What should I do now...what am I doing wrong with the voltage tuner and do I have to flash my BIOS with a mod one to get the core clock over 1320 on air?

Edge3903,You need 5 posts to have download access. The Classified vbios pack was modded from Original '3A' Classified Normal and LN2 bios.

Nope, if you flash a vbios with a different ssid it should automatically change the driver settings when Windows loads.

First, how many post do you have to have before you can DL the EVGA 780 - Classified vbios pack - 'OC edition v03?

svl7,

when you made the EVGA 780 - Classified vbios pack - 'OC edition v03, did you use the org. LN2 classified bios?

Yes. Flash with nvflash -6 and confirm the SSID override.

After you flash a card with you custom bios are you going to need to reinstall video card drivers?

Yeah sure. The classified mod is based on the classifieds vbios but will work on reference cards as well, the main difference is the default fan curve. Also I set the power settings of the classifieds vbios higher than in the regular vbios because the classified can be overvolted more than the regular card and therefore can draw more power.

Sorry to be asking all this noob questions, but when you say able to be overvolted you do mean in then voltage tuner correct? Or can you do that in PrecisionX? I know u can turn up the voltage in PrecisionX by 38mV. What is the best power target that should be used...the max I would think?

It comes all down to personal preference... I usually don't have my card overclocked except for benchmarks. However, as I said before, with this card I see no problems running it at the max voltage all the time... as long as the temperature of the card is reasonable. The limit of 1.212V doesn't really allow you to go into dangerous areas.

In the end the increased temperature from overvolting and overclocking will do more harm to the other components on the board than to the GK110 die. Just don't worry too much and enjoy your card.

As for the best way to test stability - I say there isn't such a thing as a best way, because some applications just don't allow for high overclocking and others do. Just find a good setting for the games and applications you want to run overclocked and create shortcuts for those clocks and your ready.

I quests that's what I'll do...make a OC profile and apply it when I am gaming and leave the card at stock when I'm in normal every day use. Is the mod Classie Bio that you made ok to use for everyday use? How does that bio work?

Flashing: http://forum.techinferno.com/general-notebook-discussions/2166-%5Bguide%5D-nvidia-vbios-flashing.html

You can safely do it from within Windows instead of DOS since it's a desktop and not a notebook.

Don't worry too much about what's safe for 24/7, with the voltage limit of 1.212V you can't really do anything wrong. Just enjoy your card. As for what's stable... some people run benchmarks like 3dM11 in loops to see whether it crashes after a while... but that's not necessarily the best way. You'll see that overclocking can be very application specific, i.e. some programs will allow you to run at +200MHz core without issues while others my already crash at +50MHz. Therefore you most likely have to find different settings for different applications.

If the driver crashes just lower your overclock by 13 MHz and try again.

Hi all....I'm new to the site and have a few questions for everyone? If there a tutorial on how to flash your bios on your card? If so, where can I see / read it? I am new to overclocking and this may sound dumb, but I am going to ask it anyway...what is a 24/7 overclock that is safe to use?

I do another question....what is the best why to test a GPU overclock?