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Old 12-09-08, 11:11 PM   #1
Blacklash
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Default Flashing the GTX 260

Here's how I flash my GTX 260s.

First I always use my original BIOS as the base for the new BIOS. I save a back up then mod and save the BIOS as something else. I use short names like E20.

What you need is NiBiTor, NVflash 5.67 or better, and GPU-Z is optional. I save my BIOS with GPU-Z because for some reason NiBiTor doesn't want to extract it on Vista x64 SP1.

I create a DR-Dos boot DVD with Nero. I place that in my primary DVD drive. I keep Nvflash, GPU-Z, NiBiTor and all my BIOS files in a folder I created on my C drive called NV.

I back up my original BIOS, then open it and mod it. Save it as something else in the NV folder. I make sure the file extensions are .rom and not .bin. Any .bin gets changed to .rom.

Once I have my BIOS ready in the NV folder I restart with the DR Dos DVD in my primary DVD drive. I go through its prompts until I can navigate to my C drive. Then I type cd nv\. After that nvflash -4 -5 -6 <insert your BIOS>.rom here. Hit Y when prompted. Restart and you're done.

As always flash at your own risk. If you decide to do it, it's on you. I flashed my cards because I wanted the core, memory and shader clock to be identical for SLi. Yes, I know that isn't necessary.

This isn't the only way to do it and it worked well and painless for me.

Tools-

NiBiTor-
http://majorgeeks.com/NVIDIA_BIOS_Ed...Tor_d3122.html
GPU-Z
http://www.techpowerup.com/downloads...-Z_v0.3.0.html
Nvflash 5.67
http://www.mvktech.net/component/opt...rent,category/
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Last edited by Blacklash; 12-17-08 at 03:27 AM.
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Old 12-09-08, 11:16 PM   #2
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Default Re: Flashing the GTX 260

If you do a lot of flashing like I do, a bootable freedos USB drive works wonders.
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Old 12-10-08, 05:13 AM   #3
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Default Re: Flashing the GTX 260

I thought about flashing my other BFG so they would have the same clocks ,as I did with my 8800GTS 640mb ,but since it works perfect when I have the fastest card in slot one ,I see no sence in doing it.But I may before it is over I too, like haveing both of my cards have the same clocks .
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Old 12-18-08, 09:40 AM   #4
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Default Re: Flashing the GTX 260

What does BIOS flashing to a GFX card even do? Is the only benefit from it is that you get to change clock speeds and voltages?
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Old 12-18-08, 09:50 AM   #5
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Default Re: Flashing the GTX 260

Its alot more stable than using a thrid party program, like take my GTX260, its flashed to the speeds in my sig, the cards fan has been flashed to 55% default ... it will run like this no matter what, no overclocking tools are needed.
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Old 12-18-08, 10:02 AM   #6
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Default Re: Flashing the GTX 260

Ok i understand. So instead of using a program like rivatuner you just flash a new BIOS with the overclocks? A more stable way of overclocking. Makes sense. I will have to try it on my 8800gt to see if i can get some more stable results.
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Old 12-18-08, 02:32 PM   #7
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Default Re: Flashing the GTX 260

Quote:
Originally Posted by ryan29121 View Post
Ok i understand. So instead of using a program like rivatuner you just flash a new BIOS with the overclocks?
Exactly. Not only that but you can up your voltage and that could result in a even higher overclock.
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