Forget about it and buy another motherboard. I had a similar problem. My stupid hard drive locked me out a while back. It was asking me for some password that I never remember setting up. I researched and realized that a few people were having this problem on the HP 2710p. I called HP and they were unable to help. I had no choice but to cough up the cash for a new hard drive. I suggest you do the same with the motherboard. Besides, not many people will be willing to help you "crack" a bios pass. Also, taking apart the tablet is not that difficult. Just remember to label the cables and screws.