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BIOS flashing my 8800GT - Help!

post #1 of 15
Thread Starter 
Hi guys,

I want to flash my BFG 8800GT OC2 BIOS as i want to alter the fan settings because rivatuner forgets my fan profiles every couple of days and i have to re-enter them.

i want to change the fan settings using NiBiTor.v3.9 then save the new bios and copy it to my usb stick and use nvflash to flash it, what do you think ???

Do you think it is safe to do this or will i end up with a dead GPU ?

It would be nice to have my fan profiles set into the bios so i dont have to use 3rd party software.

Thanks
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post #2 of 15
Your GPU won't "exactly" be dead. It'll just be blind (which is VERY rare if you disrupt it during the update) and thats where you get an extra PCI card ready. I've adjusted my 8800GT too to run at 100% fan. It is safe to do if you know what you're doing.
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post #3 of 15
Thread Starter 
Quote:
and thats where you get an extra PCI card ready.
What do you mean by that ??? and whats the best way to make my usb stick bootable ???
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post #4 of 15
Quote:
Originally Posted by wiggy2k7 View Post
What do you mean by that ??? and whats the best way to make my usb stick bootable ???
Here's one way to do it.
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post #5 of 15
Thread Starter 
Quote:
Originally Posted by Flower View Post
Here's one way to do it.
Thanks 4 that... Rep+
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post #6 of 15
Quote:
Originally Posted by wiggy2k7 View Post
Thanks 4 that... Rep+
Thanks, but if you can help it, avoid flashing GPU bios, or at least back up stock bios beforehand so you might be able to blind flash it if anything happens.

Good luck!
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post #7 of 15
What he means is the if you corrupt the BIOS on your GT nothing will be displayed, no video. So basically you have a "blind" computer. You can put an extra pci, or pcie video card in if you want to be able to see so you can reflash your GT back to the factory defaults. And no a fresh install of windows won't fix this, nor will booting from your flash drive work, if you corrupt your card's BIOS.
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post #8 of 15
I just PMed this to another member. It is how to increase the GPU voltage to 1.1v, but you will also be able to change your clocks:


1. Make a USB bootable drive using this creator:
USB Boot drive (HPUSBFW)

2. Then download the boot files and extract them to a folder of your choice

3. Run the HPUSBFW program.



Select the correct USB device from the drop-down menu, set file system to FAT32 and check Create a DOS startup disk.

4. Then browse for the extracted boot files (now in the folder of your choice) and press start to begin formating it.

5. Then download nvFlash v5.63 and copy it to the USB drive (you will not see any of the boot files on it, thats normal).

Now your bios flashing tool is ready!

------------------------------------------------
6. Next you need the bios file editor. Download NiBiTor v4.0, extract it and run the exe. Then click on tools and select "Read bios", then select device. Then again go to tools, read bios, and read into NiBITor. Now you can see your bios. Click on Voltages, select Extra and set it to 1.1v. Then go up to file, hit save file, and save it as new to the USB.
---------------------------------

Now with the USB inserted, reboot PC. Select the USB as a bootable device (through the bios), then boot to it.

After you see C: type
nvflash --save orig.rom

That will save your original bios to the USB drive as ORIG.rom.

Then to flash the modified bios, type
nvflash -5 -6 new.rom


That is all you need to do! Save the ORIG.rom file so you can flash back if you need it.
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post #9 of 15
Thread Starter 
Quote:
Originally Posted by J.Harris View Post
What he means is the if you corrupt the BIOS on your GT nothing will be displayed, no video. So basically you have a "blind" computer. You can put an extra pci, or pcie video card in if you want to be able to see so you can reflash your GT back to the factory defaults. And no a fresh install of windows won't fix this, nor will booting from your flash drive work, if you corrupt your card's BIOS.
So if it went wrong i wouldn't beable to do a blind boot from my flash drive and flash the old bios back on it ???
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post #10 of 15
Quote:
Originally Posted by wiggy2k7 View Post
So if it went wrong i wouldn't beable to do a blind boot from my flash drive and flash the old bios back on it ???
You might, but a PCI video card would be a better choice. If you are doing it blind, remember the sequence!
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