The PlayStation BIOS ( scph1001.bin , scph7502.bin , etc.) is copyrighted Sony code. We cannot provide direct download links, but we can tell you exactly what you need and how to acquire it legally.
Unlike modern emulators (like DuckStation) that bake everything into one executable, ePSXe used a inspired by earlier emulators like Nester. This meant: epsxe 190 bios and plugins work
Plugins allow you to customize how your games look and sound. Video (GPU) Plugins The choice depends on your hardware and desired look: The PlayStation BIOS ( scph1001