mattias Posted September 22, 2006 Report Share Posted September 22, 2006 (edited) im thinking about OC my go7900gs, but im a little bit nervous to flash VBIOS, i found this about a different way to OC go7900gs: "People often overvolt their cards becuse someo ne told them so, well here is some evidence on why it is not necesary for some of us, you can get the same performance and stability at the original 1V. Just use nbiteditor to set the MAXIMUM VID (7) to 1V Only with your stock bios that came directly form dell, (i forgot to back up mine) or with a custm bios with the highest VID (7) at 1V, can you run your card at 1V, becuse the roms on the popular ISO`s have their VID (7) at 1.24, and becuse it is built to use the highest VID avaible, your card will allways run at 1.24 even if you think that its running at 1V. Try usng riva tuners monitor utility to see the current VID of your card and its info tool to see what is its corresponding voltage. Not all cards are the same, but mine runs at 600/1200 at 1V with the same performance and quality as with 1.24v, and i am pretty sure that everyone elses too, just be sure to have higher GPU clocks when ocing the memory over 1000Mhz. (use 525/1050 instead of 490/1150 550/1100 instead of 790/1150 and so on, becuse this configuration are more stable) The first picture shows a succesfull no artifacted 3rdmark 05 test at 1V the second is at 1.24V The third picture is mi highest 3dmark 05 score (the voltage had nothing to with it) The fourth picture shows my best 3d mark 06 score at 1V with merom running at 2GHz 0.16 lower than normal, i will soon post my top scores becuase i now have merom succesfully running at 2.16Ghz and the overclocked GS with a 90w AC adapter with the help of MRclock utlity. i Will do more research on the power cunsomtion side efects, but as far as i can messure, what determinates your power consumption is not the voltage, but the clocks at wich your card is set to. keep this in mind and start using your own rooms." and this: "Just open Nbiteditor to edit a bios rom, go to voltage and you will that there are different voltages to set, 2 in fact, 1V and 1.24V go to the upper menu under tools and select the voltage table editor. there you set the highest VID (7) to 1V, and not to 1.24V that is the default value on the boot iso(1V is the default stock value. The video card will use the highest VID avaible allways, you can use rivatunner`s monitor utility under "Low level Settings" to check the current VID. That is why it doesnt matter if you use a rom from the iso that has not the v prefix, because all off those rooms will use the VID7 that is set to 1.24V. When someone made that iso, he/she srewed up. You normally will get more stability by increasing the voltage at higher clocks, but just pick a safe clock, lets say 575/1150 (that is my safest clock where i am happy.) then set the voltage VID(7) to 1V and the lower ones to lower values if you want, it wont matter. Now boot, flash the rom and scan for artifacts with atitool, if you get artifacts (use "older scaning settings" under "artifacts",because it has more compatability.) before 15-30 min raise the voltage + 0.02 from 1V to 1.02V and so on until you see no artifacts in games or 3d mark or even atitool. Atitool will detect even insignificant artifacts that wont appear in games or 3dmark, so be sure to run some intensive game an 3dmark too, to see if you get artifacts. Dont raise th voltage just becuase atitool sees artifacts, afterall is just a stress test that wont be like gaming. I have mine at 1V becuase i get no artifacts in games or 3dmark and i can scan for artifacts for atitool over 45 minutes with no artifacts, and when they appear its only 1 dot every 30 min" what does the shortening "VID" stand for ? someone who have heard about this "nbiteditor", wondering how safe it is. the quotations is from this pages; http://forum.notebookreview.com/showthread...385&page=22 and http://forum.notebookreview.com/showthread...385&page=23 Edited September 22, 2006 by mattias Quote Link to comment Share on other sites More sharing options...
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