Detect presence of PS2 bios files · Issue #3034 · lutris/lutris - GitHub
The year was 2004. In a small, dimly lit bedroom in a quiet European suburb, a teenager named Leo finally unwrapped his brand-new Slim PlayStation 2—the SCPH-70004
In programs like RetroArch, place the BIOS in the /system/pcsx2/bios folder .
Many European PS2 games used "PAL 60" modes or strange 50Hz refresh rates. The v1.2 BIOS handles the GS (Graphics Synthesizer) sync timing much better than the v1.0 BIOS. If you try to play Gran Turismo 4 (PAL) on an old BIOS, you get screen tearing. On v1.2, the framebuffer aligns correctly.
"BIOS download" sites are frequent targets for hosting malicious software.
However, .
The search for "better" frequently leads people to the SCPH-90004 (v18 BIOS). While the 90000 series is newer, it removed the PS1 CPU chip (replacing it with a "PowerPC" integrated chip). For pure PS2 game emulation, the because it handles PS1 backward compatibility within the PS2 interface perfectly. The v18 BIOS often crashes when opening PS1 discs via POPs.
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