its IDE and its working fine and master. It starts.. starts to boot, but XP dosn't run the drivers for the new board right and stops dead.. I'm assoming thats why it stops.. I have drivers for the board but cant get them loaded with out XP running... see the big ass problme is that the XP has the disk formated with NTFS (sp?) not FAT16 or FAT32 I just havent installed XP befor, it came like that so... thanks for the try wchamlet though..