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If your having problems doing the bios upgrade just do the following. When you unpack the update it will dump all the contents into a folder (don't recall which one) but from looking at an old floppy that i had these are the ones .

3005u.bin
Autoexec.bat
Pflash2.exe
UPDBIOS.com
UPDinfo.bin

Dump every file, even the ones i didn't list in the folder onto a blank floppy disk.

Make sure you make a backup of your original bios (freeware apps that dump the rom into a floppy are available i dont recall the name of them) dump that onto a blank disk

Create a windows98 floppy bootdisk.


Reboot the machine using the windows 98 floppy disk


Remove windows 98 floppy disk and Insert floppy with the new Bios.




Now at this step i dont recall what i did, in a previous post i said to run command.com and let the program take its course
but i'm not sure it might be autoexect.bat anyways like i said let the program run its course.

After its done the machine will reboot itself, it will show some errors in the bios but this is harmless and by the time you boot the machine again the errors will go away.


Final word, dont forget to install all the software updates for XP :> . If the bios refuses to copy itself you might have to edit the UPDinfo.bin and place your model number in it. Ive done the bios upgrade on my r522ds machine with the p2b-ae motherboard. This method should work BUT by doing it is at your own risk