I fround the following on google if it helps-
• Your computer uses an Ultra Direct Memory Access (UDMA) hard disk controller, and the following conditions are true:
• You use a standard 40-wire connector cable to connect the UDMA drive to the controller instead of the required 80-wire, 40-pin cable.
• The basic input/output system (BIOS) settings are configured to force the faster UDMA modes.
• The file system is damaged and cannot be mounted.
At the command prompt, type exit, and then press ENTER to restart your computer.For additional information about how to use the Recovery Console in Windows XP, click the article number below to view the article in the Microsoft Knowledge Base:
http://support.microsoft.com/kb/314058/EN-US/This should help ya !