Possible, if you have a real cheap surge protector and could of quick and strong up/downs will kill something in the system.
It's a Pavillion, that's what they do. That's why I don't sell them. HP "business" side machines while still having issues from time to time usually come with a 3 year on site warranty. Whether it be an 8000, 8200 or the professional "Z" series.
Wino you will either have to have someone look at it, determine if it's hardware related, IE Drives, Memory, or board, and then see if they can acquire the HP service part. Or you can consider it a boat anchor and look for a new machine.
Who'm ever diagnoses it will one have to fix it, then reformat it, and then find all the existing drivers on HP, since most machines no longer come with an OEM boot disk any longer. It's a real pain in the ass.
I will put some decent machines on here for you to consider when I get into the office tomorrow. 6-800 range with 3yr support, on site, without purchasing the carepack.
My public service announcement for the day, DO NOT BUY HOME MACHINES from HP. IE Pavillions. There is a reason they are Home/end user machines and no network manager would actually put them on their network.