Hi Everyone, I am a newbie here. I bought a used Modded PS2 Slim version 75001 flip top. I don't know what mod chip I have in it. I have no problems playing backups of PS2 games, dvd or cd (memorex). I am having problems playing backups of PS1 games. I sometimes go to browser, or a black screen with normally start up. If I press the reset button twice from stand by I get a message saying insert Playstation 2 format disc. I have tried for 3 days searching this site on how to start up my ps2 to play my backup ps1 games with no luck. I found a page with different mod chip solutions and tried the ones I could. I don't have a game shark or any swap discs. I am asking on how to find out which chip I have? Or a way to start my ps1 games. I want to say thank you in advance for any help or advice given. This is a great site, which I have used before to find answers.