Ensure that the AC adapter is plugged in and that the main battery is installed properly.
Insert the flash BIOS update program CD and turn on the computer.
Press <F12> and select boot from "CD/DVD/CD-RW Drive."
Follow the instructions that appear on the screen. The computer continues to boot and updates the new BIOS. When the update is complete, the computer automatically reboots.
Press <F2> during POST to enter the system setup program.
Press <Esc>, select Save changes and reboot. Select Save/Exit if you want to make some modifications; otherwise, select Exit and then press <Enter> to save configuration
changes.
Remove the flash BIOS update program CD from the drive and restart the computer.