 Inspi6400 They were not specific to each computer. Any Dell XP CD can only be installed on Dell Computers. For me to better assist in troubleshooting, please click my DELL-Jesse L and send me a Private Message with the Dell Service Tag number and your Dell Order number.  
Does anyone know if the reinstallation OS disks that dell used to ship with pc's where specific to the type of model you purchased? I'm not asking about CD Drivers Utilities CD JUST the OS. I ask cos i've seen many Dell OS reinstallation disks on ebay with part numbers that can be found printed on the bottom of the disk itself. 
Dell Re-installation Disks - Windows XP Pro