To ensure everything is working, go to > Run BIOS . If you see the classic Sony PlayStation startup animation and sound, your emulator is correctly configured and ready to load games.
The BIOS (Basic Input/Output System) is a small file containing the proprietary firmware from the original PlayStation hardware. Because this code is copyrighted by Sony, it is with the ePSXe download. Which BIOS Version Should You Use? Download Bios Epsxe 2.0.5 Pc
The BIOS file is essential for ePSXe to function properly. Without it, the emulator will not be able to run PS1 games. The BIOS file contains important information about the PlayStation's hardware, such as the console's memory layout, I/O operations, and graphics processing. To ensure everything is working, go to > Run BIOS