| Filename | MD5 Checksum | Size | | :--- | :--- | :--- | | scph1001.bin | 924e392ed05558ff3d42432b2a6e6c2b | 524,288 bytes | | scph5501.bin | b6f9cbedf613a0f89d1c9fa9ae0e6549 | 524,288 bytes | | scph7001.bin | 79d439fe6302acb387c6b1c42c8aaf93 | 524,288 bytes | | scph101.bin | 4e5fa52f9b1873d72b977fad1d1ffc10 | 524,288 bytes | | psxonpsp660.bin | c53ca591787ae2f29babbc8e1bc6b9b2 | 524,288 bytes |
: Extracted from the mid-lifecycle "PU-18" motherboard revision. Many experts consider the 550x series to be the safest choice because it strikes a balance between stability and compatibility with early game code. | Filename | MD5 Checksum | Size |
These files are typically used for:
Unlike the NTSC BIOS files, SCPH-101 runs at 50 Hz. Many PAL games were optimized for this region, though some ran slower or with borders. If you emulate PAL game dumps, you must use a PAL BIOS like SCPH-101 to avoid speed mismatches and save file corruption. Many PAL games were optimized for this region,