Q1: Computer Green screen?
There is a problem with the graphics card driver configuration;
Solution: Uninstall the graphics card driver and reinstall the driver suitable for the graphics card version.
The computer monitor shows that the connection line is disconnected, resulting in incomplete color difference signal, so the red, green and blue three primary colors are not fully transmitted, and a green screen appears;
Solution: Try changing the monitor cable.
Q2: How to enter BIOS?
Press "delete" to enter the BIOS settings; press "F7" to enter the boot options menu (click continuously immediately after booting).