Refers to the early viper virus, about 10 years ago. CHI virus that was popular at that time would destroy the bios of the motherboard. The motherboard bios is broken and the computer can't start. But now many motherboards use dual BIOS. The main BIOS is broken, the backup BIOS can automatically replace the main BIOS to start, and there is a physical way to prohibit BIOS writing, which is safer, so now you don't have to worry about the virus damaging the motherboard.

What's more, it's all about money now, and it's not good for you to break a motherboard. Few people do such a thing now.