Even with a valid BIOS, you might run into issues. Here are the most frequent errors in PCSX2 1.7.0:
Have you successfully set up PCSX2 1.7.0? Which BIOS version are you using? Let us know in the comments below. pcsx2 170 bios
The BIOS (Basic Input/Output System) in a PS2 console is responsible for: Even with a valid BIOS, you might run into issues