freundy
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Hello EVGA forum! My first post officially in these forums! I've done a fair amount of research and couldn't really find answers to my specific questions so I wanted to utilize the vast knowledge of these forums to help me out. I appreciate any help you can give. I recently bought a 780 Ti Classified edition card, it works great, is silent and all of that. Mine boost clocks to 1149 MHz on its own out of the box and stays in the high 60s for temps under load. I paid for the classified version of this card and not the reference or the super-clocked version because I wanted to go further still. I am aware that there are many threads on how the dual bios needs to have a fix to work properly and right now we are essentially forced to use 3rd party programs such as skyn3t. My question is (I think) even more basic than that though. I use Precision X to OC and I can only manage a minor OC while keeping stability and even that depends on what game I am playing. I can boost to +50MHz and be relatively safe in a few games but in others I get a driver crash fairly quickly any messing with the memory overclock seems to render it unstable regardless. Precision X seems to not alter my power target and stays fixed at a voltage rate of 1174 even though I can use the slider to go up to 110% power. I assume this is why I get driver crashes as it requires more power to sustain higher clock speeds and it just isn't getting it even though I slide my power target up. But why doesn't it work like it should and how will dual bios be any different than using precision x other than offering the safety of having a backup bios? That's really the root of what I don't understand. tl;dr version: How is having a dual bios any different than just using precision x when it comes to OC? Why would I expect different results using my dual bios than what I am experiencing with precision x? I appreciate your feedback with ideas and/or explanations to help me understand this further.
post edited by freundy - Friday, January 10, 2014 4:10 AM
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darklyspectre
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Re: 780 Ti Classified OC/Dual BIOS/Precision-X question
Friday, January 10, 2014 7:38 AM
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freundy
Hello EVGA forum!
My first post officially in these forums! I've done a fair amount of research and couldn't really find answers to my specific questions so I wanted to utilize the vast knowledge of these forums to help me out. I appreciate any help you can give.
I recently bought a 780 Ti Classified edition card, it works great, is silent and all of that. Mine boost clocks to 1149 MHz on its own out of the box and stays in the high 60s for temps under load. I paid for the classified version of this card and not the reference or the super-clocked version because I wanted to go further still. I am aware that there are many threads on how the dual bios needs to have a fix to work properly and right now we are essentially forced to use 3rd party programs such as skyn3t.
My question is (I think) even more basic than that though. I use Precision X to OC and I can only manage a minor OC while keeping stability and even that depends on what game I am playing. I can boost to +50MHz and be relatively safe in a few games but in others I get a driver crash fairly quickly any messing with the memory overclock seems to render it unstable regardless. Precision X seems to not alter my power target and stays fixed at a voltage rate of 1174 even though I can use the slider to go up to 110% power. I assume this is why I get driver crashes as it requires more power to sustain higher clock speeds and it just isn't getting it even though I slide my power target up. But why doesn't it work like it should and how will dual bios be any different than using precision x other than offering the safety of having a backup bios? That's really the root of what I don't understand.
tl;dr version: How is having a dual bios any different than just using precision x when it comes to OC? Why would I expect different results using my dual bios than what I am experiencing with precision x?
I appreciate your feedback with ideas and/or explanations to help me understand this further.
Use bios 2 which gives you the possibility to use 115% in precision. the second bios is used to overclock well...what you can consider a overclock. if you want to be able to overclock like anything you need sky's bios which is sad. bios still hasn't been fixed by EVGA or any information has been given.
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freundy
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Re: 780 Ti Classified OC/Dual BIOS/Precision-X question
Tuesday, January 14, 2014 5:45 PM
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Will using bios 2 actually implement voltage change or is it going to be the same as bios 1, which does not change voltage even using the power target slider? Or is this why a working custom bios is important as it actually increases voltage where stock bios does not. I am new to OC and want to try what I can before attempting to flash anything and am using precision x.
Thanks for the help.
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darklyspectre
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Re: 780 Ti Classified OC/Dual BIOS/Precision-X question
Tuesday, January 14, 2014 6:26 PM
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freundy
Will using bios 2 actually implement voltage change or is it going to be the same as bios 1, which does not change voltage even using the power target slider? Or is this why a working custom bios is important as it actually increases voltage where stock bios does not. I am new to OC and want to try what I can before attempting to flash anything and am using precision x.
Thanks for the help.
as far as I can tell bios 2 allows you to change voltages to 115% so I guess precision should work on it? I don't know I haven't used my classified yet. and if you really want to properly be able to overclock then you need a bios update since EVGA is taking forever and some more to fix this
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dbianchi
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Re: 780 Ti Classified OC/Dual BIOS/Precision-X question
Tuesday, January 14, 2014 6:28 PM
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freundy
Will using bios 2 actually implement voltage change or is it going to be the same as bios 1, which does not change voltage even using the power target slider? Or is this why a working custom bios is important as it actually increases voltage where stock bios does not. I am new to OC and want to try what I can before attempting to flash anything and am using precision x.
Thanks for the help.
I believe bios 2 is still capped at the standard voltage limit but allows 115% power target. Skynet bios unlocks to 1.21 and allows 200% power target. Hardest thing about flashing is formatting a USB stick for boot. I'd hold off a few days, I read a post from Jacob that they are indeed working on an official bios, not sure on details but it sure seems these things need 1.21 minimum..
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freundy
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Re: 780 Ti Classified OC/Dual BIOS/Precision-X question
Tuesday, January 14, 2014 9:41 PM
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I'll hold off until official bios updates are released from EVGA until i try to flash anything. In the meantime I just wanted to see what my card is capable of with the stock bios and this is my experience thus far: I switched to bios 2, my power target goes up to 115% now, however my voltages stay at 1174 so this doesn't seem to matter. My first bench just +50MHz was stable and got an increase bench over stock...I upped it again to +75 and got a minimal increase from the previous OC, then I tried 100MHz and it crashed. I then upped my voltage +37 manually using the adjust voltage option in precision X and it didn't crash and was stable, however, my bench score was pretty much the same as at stock settings. I don't get it. Plus on top of all this the voltage keeps resetting to the stock 1174 on its own and closing/restarting precision x doesn't seem to help. The voltage says its +37, but the voltage being used stays the same. Even with the one time it did work at 1212 voltage with the +100 preset the temps were still in the high 60s so there seems to be plenty of temp room to use, even though that particular bench was pretty much the worst I've tested. I put my benches below to help illustrate what went down. I haven't messed around with any memory OC yet until i get the GPU clock figured out/stable. Any thoughts on this? In-game like BF4 if I do even just a +50 oc, my frames are halved in the game itself, it doesn't crash, just gimps itself.. 3DMARK11 Bench results: stock=1150MHz using 1147 voltage 1150MHz P12839 graphics score=17085 +50MHz OC P12998 graphics score= 17498 +75MHz OC P13015 graphics score=17502 +100MHz crash +100MHz , +37 voltage P12893 graphics score=17233
post edited by freundy - Tuesday, January 14, 2014 10:30 PM
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dbianchi
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Re: 780 Ti Classified OC/Dual BIOS/Precision-X question
Thursday, January 16, 2014 12:28 AM
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I sent you a PM with new bios details. Good luck!
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freundy
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Re: 780 Ti Classified OC/Dual BIOS/Precision-X question
Thursday, January 16, 2014 4:14 PM
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Thanks dbianchi. I emailed Chrisb to get the email for the new bios link. Once I get home tonight I'll attempt my first video card flash. I've watched several youtube videos and read up on it as well. Your pm is in-line with what I've gathered so that's good! I look forward to giving it a shot once I am home from work. I'll post in here what difference, if any, my cards gets from the bios update.
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dbianchi
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Re: 780 Ti Classified OC/Dual BIOS/Precision-X question
Thursday, January 16, 2014 4:57 PM
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Opolis
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Re: 780 Ti Classified OC/Dual BIOS/Precision-X question
Thursday, January 16, 2014 5:28 PM
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I had the same experience as you using BIOS option 2 (LN2). Didn't get a huge OC. I flashed the skyn3t revision 3 bios (which is really easy to do) and now have 1.21V limit and 200% power target with much better results. Keep in mind that this BIOS disables boost so you need to make a +40 profile in Precision to be at the out-of-the-box speed of 1150mhz. The skyn3t bios is what you need to really unlock the OC potential. To go even further you can use the Classified voltage tool instead of precision to ramp up the voltage even more, just be careful that your temps are within an acceptable range. All the info and files are here: http://www.overclock.net/t/1411500/official-evga-classified-owners-club
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freundy
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Re: 780 Ti Classified OC/Dual BIOS/Precision-X question
Thursday, January 16, 2014 6:54 PM
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Thanks for the replies. I have the new EVGA BIOS on my pin drive from chris's email and will give it a go when I get home. After installing the new bios will my card automatically have different default clock speeds on its own under load before I mess with precision-x? Or will it just allow me to tinker around with precision x with better success? I don't need huge overclocks, but i feel the card can go much higher since my temps never really get out of the 60c range. If i do need to tinker with the precision x settings, is there a way to keep it saved so I don't have to redo all the settings each time I start my computer? Thanks for the additional insight.
post edited by freundy - Thursday, January 16, 2014 6:58 PM
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Opolis
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Re: 780 Ti Classified OC/Dual BIOS/Precision-X question
Thursday, January 16, 2014 7:40 PM
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Under Profiles in Precision you can right click a number to save the current settings, but the voltage tuner settings are not tied to that and will not be saved with the profile (you have to set it manually). If you are using the EVGA bios and not skyn3t then default speeds should be the same. You can set precision to load a profile when windows boots but I would not recommend it unless you are sure of the stability of your OC. I like to save my profile in Precision and just select it when I start up my PC.
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dbianchi
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Re: 780 Ti Classified OC/Dual BIOS/Precision-X question
Thursday, January 16, 2014 9:18 PM
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not sure what standard and boost clocks the new bios will have, prolly the same as current bios. having precision load when windows starts should load what you saved. also you may know this, you can have GPU-Z running as you mess with precision and it will show what mem/gpu clocks will change to when in 3D mode, hope that makes sense
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freundy
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Re: 780 Ti Classified OC/Dual BIOS/Precision-X question
Thursday, January 16, 2014 9:58 PM
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Sounds like a plan.
I've read it's best to overclock the gpu until it's not stable, then tone it back before increasing any memory overclocks. Is this right way to go about it? I use 3Dmark11 for my bench stability tests right now, any other suggestions that are free and worth downloading? I am getting these questions out of the way so I can hit the ground running when i get home. Thanks!
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dbianchi
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Re: 780 Ti Classified OC/Dual BIOS/Precision-X question
Friday, January 17, 2014 0:39 PM
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Hope it's not too late but don't worry about a boot drive, the download is a zip that has a windows based update.exe, very simple. I haven't tested yet, flash very easy though :)
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Opolis
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Re: 780 Ti Classified OC/Dual BIOS/Precision-X question
Friday, January 17, 2014 1:07 AM
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I use 3dmark and Unigine Valley and Heaven. The procedure is to raise clock speed a little (~10-20 mhz) and run a benchmark. When getting closer to the limit use smaller increments (~2-5 mhz). If it passes then repeat the previous step until the you get an error, artifacting, or a crash. You might also reach a point where raising the clock speed is not resulting in any higher benchmark scores. If any of these things happen, restart your PC. At this point you can raise the voltage and then try the setting again. You keep going until you reach max voltage or temps get too high. Then back it off ~20mhz and test to make sure it's okay there. I OC the gpu clock speed only, then set that to stock and OC just the memory. After I find the limits of each individually, I use that as a starting point for having both overclocked. When you up the gpu clock speed and the memory speed together, sometimes you can't go as high as when OC'ing just one or the other. After you feel you've gone as high as you can go and it is stable in benchmarks, try out your favorite games and make sure that there are no errors, artitacts, or crashes. If there are then back it off a bit. Sometimes you can pass one benchmark or game and not another. I like to keep a chart with each setting I try and the results. It's an iterative process that can take time but is pretty straight forward and you won't really damage anything unless temps are really hot for prolonged periods.
post edited by Opolis - Friday, January 17, 2014 1:12 AM
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freundy
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Re: 780 Ti Classified OC/Dual BIOS/Precision-X question
Friday, January 17, 2014 2:55 AM
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I switched to bios 2 and installed the new bios update that I received via email. There was also 2 other files that came with the application update. one was NVFLSH64.sys and the other was NVFLSH32.SYS. Are these for if i wanted to revert back to the standard bios? One is for 64bit and other is for 32bit systems I take it. Is that right?
I tested the new bios and unfortunately it does worse than it did on the stock bios. It crashes on even a +75 overclock where it ran that before. There is no difference with the voltage staying put. It worked once, but then didn't stay put just like my first experience. I don't know what to do, my temps were running a max 62c but get a driver crash. I have the most recent updated graphics driver, using 332.21. Anyone have any other ideas? Or how I can at least go back to the original bios, I am hoping that's what the NVFLSH64.sys is for.
Thanks for the help.
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CSPlayer089
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Re: 780 Ti Classified OC/Dual BIOS/Precision-X question
Friday, January 17, 2014 2:59 AM
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Glad I am not the only one with this problem. I get instant driver crashes no matter what I do. I need the file for the stock LN2 bios ASAP..
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Opolis
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Re: 780 Ti Classified OC/Dual BIOS/Precision-X question
Friday, January 17, 2014 2:13 PM
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There is a link to the stock LN2 bios in the overclock.net link I posted above as well as instructions on how to use nvflash. Those other files go with the nvflash utility, just leave them be. I would try the skyn3t rev 3 bios (also in the link I posted above) since you are comfortable flashing bios now. It has worked great for me and others I know with 780 Classy's. Allows 1.21V, 200% power target, and disables boost (you will have to set +40 to be at "stock" classified speed of 1150mhz). Feel free to PM me for help.
post edited by Opolis - Friday, January 17, 2014 2:31 PM
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