Hello, I've had a computer sitting in my basement for a while and decided i would like to get it running. it had a MoBo in it and cd/dvd drives. i purchased 2x512mb of ram because the computer can only hold 1 gig. those went in fine and the computer seems to read them just fine. now for the hard drive i just purchased and put inside of my computer but when i put in my Windows XP disc it tells me Disk Boot Error and will not go past that screen. Here is the Computer: http://h10025.www1.hp.com/ewfrf/wc/document?lc=en&dlc=en&cc=us&docname=c00234149 Here is the motherboard inside: http://h10025.www1.hp.com/ewfrf/wc/...c=en&product=431077&lang=en&docname=c00069442 Here Is The Harddrive Link: http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&ssPageName=STRK:MEWNX:IT&item=150356528920 I do believe i purchased the correct harddrive. it is a UDMA and im pretty sure the MoBo is a UDMA. PLEASE HELP!