On some FR500-based systems it may happen that the Windows98 Device Manager shows an error in loading the IRQ Table from the PCI BIOS. This can be verified by checking the IRQ Steering Tab in the PCI Bus properties screen. To do so, go to Device Manager, System Devices, PCI Bus and click the Properties button. Note that this error has been reported on systems with BIOS versions 2.06 or 2.07. If your system currently uses version 2.06 or 2.07 and does not show any errors as described above, there is NO need to flash to BIOS version 2.00.
this one did not work for me but may work for you I have posted the other one that work for me