I'm gonna buy a new system:Asus A7N8XAMD Sempron 3000+512 DDR(2x256 Dual Channel)Asus GeForce 6200And I'm curious what FPS to expect on MSFS 2004 on HIGH settings and for example with the PMDG B737 ???

Hi Sheepi, tough question and welcome to this forum. My short answer: Maybe 17.5?? Please be more specific and mention more details such as resolution, AI traffic, weather settings, etc, etc. Perhaps also check the other hardware forum in the MSFS section? IMHO, the 3000 Sempron isn't a bad CPU for budget upgrades and it's the only Sempron I would recommend. Hope this adds to thoughts, good luck and kind regards Jaap