I got this desktop computer that has a Asrock board in it Model # FM2A75M-DGS and it comes up with the boot screen and I try to get in to boot settings or anything and it wants a password. I have no clue what the password is and I need help to see if it can be reset. I have looked on the internet everywhere and have had no luck. If I pull the battery will that reset it......help me please. Thanx