NVFlash 5.100.0.1 for Windows
http://www.techpowerup.com/download...or_Windows.html

用這個進Windows7的CMD
執行nvflash.exe -b org.rom 就會備份BIOS
執行nvflash.exe -4 -5 mod.rom就會用mod.rom來更新BIOS

還蠻簡單的,試一次就成功了(當然檔案要放對地方)