Do you have an appropriate SATA driver integrated? Or can you set it in BIOS the internal disk in "IDE emulation mode" (or similar setting)? (though normally the symptoms would be that no disk is found ) Which SP is that Wndows 2000? Have you enabled 48 bit LBA? Let's wait if some other member has an idea of what the issues could be (maybe too faster processo/too much RAM)? jaclaz Thanks for the reply XD Yes I have tried to set the internal disk in "IDE emulation mode" but it didn't work It's the SP4 ^^ How can enable 48 bit LBA? p.s: Are you an italian too?