Spesh
New Member
I finally got round to flashing the BIOS on my 680's in the week, which has enabled me to push the voltage higher and squeeze a few more FPS out of these cards. Anyway, I'm not sure if other people have done this or if there is a guide on the forum, so I thought I would make one.
This guide will work for all 600 series GPU's...
600 series firmware modifier - http://www.v3dt.com/nvidia/600/
This is pretty straight forward to do. If your cards voltage is limited to 1.15v (or whatever the figure is), then this will let you increase it up to 1.213v. That may well free up some more overclocking potential. There are also other features in that piece of software.
You will need a copy of your original bios file which you can grab through GPU-Z. Make sure it is saved as a .rom file.
Alternatively.....
Kepler Golden Bios (KGB) editing tool - https://www.dropbox.com/s/fsxyvofr1idazhm/kgb_0.6.2.zip
This is a console application run via command prompt. To unlock your bios you will need to enter the following:
kgb.exe your_bios_name.rom unlock *(be sure to have a copy of your original bios file).
It will unlock the card to 150% Power, Voltage 1.1875v (1.2125v boost), and fan range 30% - 100% (You can now define these values in the kgb.cfg file).
The flashing process
- Download and extract NVflash into a folder from this link - http://www.techpowerup.com/downloads...r_Windows.html
- Make sure that you place your modded bios file into the same folder as NVflash.
- Now shift+ right click in the folder and click "open command window here" then type the following commands, with appropriate spacing:
Nvflash --protectoff
Nvflash -4 -5 -6 modded_bios_name.rom *(note that you will need to put whatever you named your modded bios file)
For multi gpu setups, NVflash will automatically detect additional cards and ask you if you would like to flash these as well.
Once that's all done you should be able to reboot with your new bios on the card/s.
Oh and please remember that you mod your bios at your own risk. That said, if there is a problem during the flashing process and you lose functionality of your GPU/s, it is not the end of the world. Provided you have an alternative means of video output, you can flash the card/s back to the original bios using NVflash.
Please also remember the implications that this process may have on your manufacturers warranty.
Hope this helps.
This guide will work for all 600 series GPU's...
600 series firmware modifier - http://www.v3dt.com/nvidia/600/
This is pretty straight forward to do. If your cards voltage is limited to 1.15v (or whatever the figure is), then this will let you increase it up to 1.213v. That may well free up some more overclocking potential. There are also other features in that piece of software.
You will need a copy of your original bios file which you can grab through GPU-Z. Make sure it is saved as a .rom file.
Alternatively.....
Kepler Golden Bios (KGB) editing tool - https://www.dropbox.com/s/fsxyvofr1idazhm/kgb_0.6.2.zip
This is a console application run via command prompt. To unlock your bios you will need to enter the following:
kgb.exe your_bios_name.rom unlock *(be sure to have a copy of your original bios file).
It will unlock the card to 150% Power, Voltage 1.1875v (1.2125v boost), and fan range 30% - 100% (You can now define these values in the kgb.cfg file).
The flashing process
- Download and extract NVflash into a folder from this link - http://www.techpowerup.com/downloads...r_Windows.html
- Make sure that you place your modded bios file into the same folder as NVflash.
- Now shift+ right click in the folder and click "open command window here" then type the following commands, with appropriate spacing:
Nvflash --protectoff
Nvflash -4 -5 -6 modded_bios_name.rom *(note that you will need to put whatever you named your modded bios file)
For multi gpu setups, NVflash will automatically detect additional cards and ask you if you would like to flash these as well.
Once that's all done you should be able to reboot with your new bios on the card/s.
Oh and please remember that you mod your bios at your own risk. That said, if there is a problem during the flashing process and you lose functionality of your GPU/s, it is not the end of the world. Provided you have an alternative means of video output, you can flash the card/s back to the original bios using NVflash.
Please also remember the implications that this process may have on your manufacturers warranty.
Hope this helps.
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