PS1 BIOS Guides

Everything you need to set up and troubleshoot PS1 emulation — from BIOS installation to choosing the right version for your game library.

Step-by-step installation guide for DuckStation, ePSXe, and RetroArch on PC, Mac, Linux, and Android. Takes under five minutes.

Full DuckStation configuration — BIOS, PGXP geometry correction, 4K upscaling, per-game settings, and controller setup.

Match your BIOS version to your game library — by region, by specific game title, and by DualShock vibration requirements.

Every BIOS error message fixed — "No BIOS found," invalid file, black screen, HLE fallback, region mismatch, and vibration issues.

Extract the BIOS from a PlayStation console you own — the only legally unambiguous method, covered step by step.

Set up DuckStation or RetroArch on mobile, transfer the BIOS file, add your games, and pair a Bluetooth controller.

The PlayStation games that hold up best in DuckStation at upscaled resolutions — Final Fantasy VII, Metal Gear Solid, Crash Bandicoot, and more.

How to identify a corrupted or invalid PS1 BIOS file, verify file integrity (must be exactly 524,288 bytes), and fix it.