I have a Dell PowerEdge 2600 Server that came with Windows 2000 Server on it. The RAID was corrupted and needed to be re-initialized. That part went without a hitch.
I attempted to install XP Pro on it and the setup CD would not recognize the LSI Perc 4/Di RAID Controller. I went to LSI's website and downloaded the appropriate drivers onto floppy and loaded them with the setup CD (F6 during bootup). The drivers loaded, but setup would not recognize the RAID controller. I then attempted alternate drivers and tried to reload with Windows 2000 and Windows 2003 Server editions. They all hit the same brick wall.
I called Dell and was informed that they do not support XP being put on this computer but knew that it could be done. One tech even gave me a link to download their System Builder CD, but that CD, while it recognizes the RAID controller, only supports certain versions of 2000 and 2003, which I have been unable to find.
I would really like to put XP Pro on here if anyone could help me.
Another thought: Have you tried going to http://support.dell.com and using your service tag to download the RAID drivers (for Windows 2003 and/or Windows 2000) to see if they will work with Windows XP?