Two years spent volunteering on the official tech support forums for World of Warcraft helping people with gaming issues and pc errors. A lot of info can be gathered by checking their DXDiag for outdated drivers, Windows updates and weather or not their pc just can't handle the graphic engine of the game (and they officially do not support laptops). Plus I'm a bit of a geek-girl anyways.
But to answer your question, just eyeballing it told me the mobo is from a prebuilt because you just don't see that many (if at all) HP mobo's for sale on Newegg/Amazon. Yes I did Google the model number merely to be sure before I posted.