Here we go, the method of my test.
1] Check to see if usb boot is supported with your motherboard, it should be.
2] Second get a usb flash drive.
3] You need the hp usb format tool : hp usb format tool
4] At the top is says to click a link for files to make a boot usb click it or click here here win 98 dos files
5] Download the files and extract the tool and install it.
6] Extract the windowns files and put them in folder on desktop
7] Start hp utility
8] Check create dos startup disk
9} Hit little button saying "using dos system files located at"
10] Go to the folder on your desktop where you extracted the win 98 dos files and select it
11] Hit start, let it format and your done
Don't worry if your usb drive has nothing on it. When you look the files, they are hidden.
Now get nvflash 5.72 url=
http://www.softpedia.com/get/Tweak/Video-Tweak/nVFlash.shtml]here[/ url]
1] Download nvflash 5.72 you need to extract these a couple of times till you get the nvflash and note.
2] Copy nvflash to your usb drive.
3] Copy the BIOS .ROM you want to flash to the GPU EEPROM as well
4] Get them here @ nvidia bios mkvtech
5] Don't forget to change the name of the bios file to newbios.rom then copy it to the usb stick.
Ready to start?
Here we go
1] Put in your usb flash drive and restart your computer
2] When you get to the startup screen hit f8 and select usb as your boot
3] You will see a simple win 98 dos splash screen then the prompt
4] My space bar will be replaced with a * mark so you know for sure its a space.
5] Type
nvflash*-b*backup.rom ( nvflash -b backup.rom )
6] Hit enter it will back up your current cards bios to the usb
Next is the fun part
7] At the prompt type
nvflash*-4*-5*-6*newbios.rom ( nvflash -4 -5 -6 newbios.rom )
8] Hit enter
9] You will be asked to hit "Y" a few times
That's it, you're done
10] Restart
If it doesn't work, then remember your steps if you see nothing and have to do a blind flash.
Get the hang of what you need to do to get to the dos prompt incase you can't see.
When there type at the prompt
nvflash*-4*-5*-6*backup.rom ( nvflash -4 -5 -6 backup.rom )
Hit enter, then hit "y" repetitively.
You'll here a beep when it starts and when it ends
After the second beep restart and you should be fine.