For 99.9% of games, the SCPH-90006 changes nothing . Final Fantasy X doesn't care about your power management registers.
BIOS files are strictly tied to the console’s region and model. Key categories include: ObsoleteSony all ps2 bios files including the new scph90006 exclusive
| Game | SCPH-39001 | SCPH-90001 | SCPH-90006 (Exclusive) | |--------------------------|----------------------------|----------------------------|----------------------------| | Gran Turismo 4 (intro) | Minor stutter at 60Hz | No stutter | No stutter, faster load | | Kingdom Hearts II (FMV)| Audio sync perfect | Audio sync perfect | Audio sync perfect | | God of War II (Athena)| 1 micro-stutter per minute | 1 per 3 minutes | | | Shadow of the Colossus | 50-60 FPS (variable) | 55-60 FPS | Steady 60 FPS | | Gradius V (Stage 2) | Input lag: 3 frames | Input lag: 2.5 frames | Input lag: 2 frames | For 99
The late 90006 BIOS has a longer "disc ready" handshake. Disable "Fast Disc Boot" and enable "Full Boot" in your emulator’s CDVD menu. Key categories include: ObsoleteSony | Game | SCPH-39001