i sold this computer to a guy on craigslist. granted i dont know much about computers, i thought i gave him all the parts necessary for it to work. including power cable, keyboard w/wire, screen w/wire, speakers w/wire... he called back saying it wouldnt run cause i forgot to give him the "AC adapter" i have like 6 different adapters so i'm not sure which one is compatible. didnt even know desktops needed them. I'd hate to be a scam artist so if anyone knows all the names & makes of the parts for this computer it would be awesome if you'd list them in detail. thank you thank you thank you