Hello,
I need to have some info about how did you performed this flash, if you used the Flash.exe or Pflash.exe utility . The Pflash utility is used on boards that support PnP and the Flash is not.
Also after you successifully flashed the bios, you should scape back to a Dos prompt, then reboot the PC; after it reboots hit DEL to enter the CMOS setup, go to "load setup defaults" then save and exit setup.
Please post results.
Mac