I have never had problems like this installing XP. I may buy a cheap system board in put it in this case so I can install dell. THis was a top of the line system back in the day. I wish I could get XP to install and I do not know what the problem is. I purchaced 4 different dell install DISKS off of ebay. But htis did not fix the problem. It keeps saying it has detected something. I did a complete disk erase and that still wont let me install it. Anyone know why I can not get Xp to install ? is thier a bios setting that I could change so it wont detect what ever it thinks is wrong. ? Must be a way to get past this. Anyone know why this is coming up. I did just read what this said - and I will now try those things. What a pain. I have a used SOLID state disk im putting xp on So it appears this is not an issue with information being on the hard drive.