What does updating bios do
The decision to flash your BIOS should not be taken lightly.
It is essential that you do it mistake free if you still want to be able to use your computer.
Flashing your BIOS with the wrong BIOS file Most BIOS updates come as a zipped file containing the binary code file, the flash utility, and sometimes a README file.
Flashing the erasable memory of your BIOS with the wrong code is almost certain to cause failure the next time you try to boot. Many motherboard model names are similar within a single manufacturer.
You might be able to get the information by entering the serial number of the PC on a Web site, but when it comes to flashing your BIOS you need to be 100 percent accurate and the information on the Web site could be incorrect.