Me ether. Why would they do that, unless the power supply cannot handle the power or something like that. Remember, company's that build computers are more prone to using as little as it can handle. That computer could have a psu of say 400 watts and not even 80. It may not be able to handle another drive. They build cheap for the most part to make as much as they can. Last one i bought was a Compaq and it couldn't get out of its own way. Dells are usually better but just so. I wouldn't buy the hp. If you have the knowledge, i would build your own. It may cost the same but you can buy better parts and put it together yourself. End result, is a better computer and less money or same price, Just my 2 cents.