Thanks!I have a cheap 450w PSU(Antler).I hope it will manage the new card,that consumes 150w max.With the integrated video card the system consume 94w at idle and 130-170w peak.I know it"s a cheap PSU but it has over voltage,over power and short-circuit protection,so if it can"t manage the new card i think will not burn any hardware in my computer.Thanks again for your help,I will post after install and testing.