PSX Games not booting with S-Box (Neo Key)

[Eegahh!]

the method for getting psx backups to work is different than ps2 games. I've found that the most reliable way is to power up with the game in the system, and turn on the chip right away. no game shark involved. try turning off the chip once the psx logo comes up, and if that doesn't work leave it on until the game fully loads up. If all else fails, use the psx disc that came with your gameshark, and boot it just like a ps2 game.