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GTX480 BIOS Editing

post #1 of 8
Thread Starter 
I'm trying to edit my GPU's BIOS to get 600MHz on the Core, 1800MHz on the Memory and 0.925V on the GPU's Voltage.

Further testing showed that my GTX480 has lost around 78 Load Watts on Furmark and max temature with Furmark showed 62C with fan at 100%.

I'n now using this "NiBiTor" Opened with Admin priv, opened my BIOS, and everything is greyed out, can't click on anything besides the vendor and device, What's the problem? confused.gif
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post #2 of 8
use nibitor 6.1

and retry
post #3 of 8
Underclocking? It would be easier to just adjust with afterburner & apply settings at startup rather than flash the bios for lower than stock clocks & voltage.
But in nibitor, you have to click the tools tab on the toolbar at top, then fermi clocks & fermi voltage to adjust the values.
    
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post #4 of 8
Thread Starter 
Quote:
Originally Posted by Andrea deluxe;14425226 
use nibitor 6.1

and retry

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post #5 of 8
Thread Starter 
Quote:
Originally Posted by FtW 420;14425258 
Underclocking? It would be easier to just adjust with afterburner & apply settings at startup rather than flash the bios for lower than stock clocks & voltage.
But in nibitor, you have to click the tools tab on the toolbar at top, then fermi clocks & fermi voltage to adjust the values.

Because downclocking form 700 to 600 took about 25W off from the 50W I lost when I undervolted, Every little bit helps lol, if my Games fall below 23FPS then it will be back to 700MHz off course.
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post #6 of 8
Thread Starter 
I'm very confused on how to set this up confused.gif

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post #7 of 8
Thread Starter 
Quote:
Originally Posted by Atomfix;14425388 
I'm very confused on how to set this up confused.gif

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Anyone? frown.gif lol
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post #8 of 8
Here is an excellent program and forum for Fermi Bios Editor:
http://forums.guru3d.com/showthread.php?t=336117
I have used it without any problem, to change the clock speeds, and voltage, on my 480's.
Good bios flashing advise and options there too.
They also discuss Nibitor, but for Fermi gpu's like the 480, I have found the Fermi Bios Editor to be far superior for ease of use, and most importantly, it works.
Edited by DerComissar - 8/1/11 at 11:59am
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