Re:NVIDIA GeForce 8800 GXU BIOS, modified Ultra for GTX use! - 2007/05/17 14:29Mavke wrote: Oh, well that is one logic that you can apply. But it is not because of the drivers that will lock the corte and shader clock together that this is the best way. You can even set a core clock of 612MHz with a shader of 1458MHz or just set it at 1566MHz. And even then the one with the highest shader will give better performance. Well... I tried it with the shader at 2000MHz,and got artifacts like hell though. So I just wanna keep it 612MHz core clock and 1512MHz shader.
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Mavke
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Re:NVIDIA GeForce 8800 GXU BIOS, modified Ultra for GTX use! - 2007/05/17 14:51Warboy wrote: Well... I tried it with the shader at 2000MHz,and got artifacts like hell though. So I just wanna keep it 612MHz core clock and 1512MHz shader. Are you nuts? Forgive my language, but who said that you should try a shader of 2000MHz? From the NVIDIA documentation it is stated that on the GeForce 8800 GTX the shader is scalable up to 1500MHz, but even then you have some more breathing room to about 1600MHz. So with the 612MHz core you could set a shader of 1512MHz, 1566MHz, or even 1620MHz.
The highest Ultra clock I have seen during overclocking is 710MHz core clock with a shader of 1674MHz. With lower core clocks of 675MHz a shader of 1728MHz was also possible on it. But why you thought even of trying a 2000MHz shader clock that beats me, that we might only see when NVIDIA moves to the 65nm process to build their chips. Only normal that you would get artifacts in that case.
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Warboy
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Re:NVIDIA GeForce 8800 GXU BIOS, modified Ultra for GTX use! - 2007/05/17 16:47Mavke wrote: Are you nuts? Forgive my language, but who said that you should try a shader of 2000MHz? From the NVIDIA documentation it is stated that on the GeForce 8800 GTX the shader is scalable up to 1500MHz, but even then you have some more breathing room to about 1600MHz. Oh, I just did it for the hell of it. Why not I thought... The shader clock is adjustable so just wanted to see how far it could go.
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Mavke
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Re:NVIDIA GeForce 8800 GXU BIOS, modified Ultra for GTX use! - 2007/05/17 19:00Well, you aren't the first one actually that tried that and some other readers did think it succeeded and started trying as well with of course quite some discussions afterwards, and that gave me quite some email afterwards as some other forums stated it worked. Just nuts as it didn't and never will. Just trying to avoid a similar discussions, as some persons just think everything is possible.
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hehee
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Re:NVIDIA GeForce 8800 GXU BIOS, modified Ultra for GTX use! - 2007/05/18 04:30Oeps... 2000MHz! It's too much for the card. I've set mine at 660/2000MHz with a shader clock of 1600MHz so far with stable stress test equipped with low-end water cooling. With the stock cooling I had about 630/2000MHz and a shader of 1550MHz. Increment of shader helps in performance.
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Mavke
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Re:NVIDIA GeForce 8800 GXU BIOS, modified Ultra for GTX use! - 2007/05/18 08:52hehee wrote: I've set mine at 660/2000MHz with a shader clock of 1600MHz so far with stable stress test equipped with low-end water cooling. With the stock cooling I had about 630/2000MHz and a shader of 1550MHz. Increment of shader helps in performance. Cool runnings mate. Those speeds are quite nice, with a decent 660MHz on the core and 1600MHz shader. So that is a nice setting which will boost the performance. Well done, and good to see water cooling is helping with that.
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Shadow42
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Re:NVIDIA GeForce 8800 GXU BIOS, modified Ultra for GTX use! - 2007/09/05 07:28Warboy wrote: I updated the BIOS because the shader clock was bugged. The BIOS is set to operate at 612/2000MHz and a shader of 1512MHz. If you got feedback on the BIOS, please mention it on this thread. Fantasic job! I took the plung and flashed my XFX GeForce 8800 GTX with your second BIOS, as I was using the XXX edition BIOS. Works a treat! I got an extra few points on 3DMark06 and broke the 12k mark for the first time which is always nice.
Thought the most noticable improvement was to BattleField 2142, the my minimum frame rates has increased, especially on titan maps! Thanks for the great work Warboy and Mavke for this site. I will monitor my card for the next few days and see how things go. Early observations hint that my temps have increased slightly, like 1-2°C. I'll keep you posted.
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Mavke
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Re:NVIDIA GeForce 8800 GXU BIOS, modified Ultra for GTX use! - 2007/09/05 12:11Excellent, thanks for the feedback and the followup. Good stuff with the extra points in 3DMark and the better low frame rates which increased. Keep us posted if you have any other feedback.
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RaZOR
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Re:NVIDIA GeForce 8800 GXU BIOS, modified Ultra for GTX use! - 2007/09/08 14:37What version of nvFlash must I use to flash my GeForce 8800 GTX to the Ultra BIOS? I am currently using nvFlash v5.50 but when I type the flash command it says that it is unknown type of file?
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Mavke
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Re:NVIDIA GeForce 8800 GXU BIOS, modified Ultra for GTX use! - 2007/09/09 10:25First of all your version of nvFlash is just fine, so nvFlash v5.50 is working just fine and it is not linked to that as far as I know. Now are you using a bootable DOS media? So no Windows stuff, but really base DOS media and nvFlash? And one requirement of DOS is that the filename of the BIOS is limited to "8.3" format, meaning 8 characters for the name as a maximum and 3 characters for the extension. If you go over that DOS doesn't know what file you mean, so then it becomes an unknown type of file...
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ASUS 9800GTX+ (DK) PCIe 512MB - Rev 01
