So I have this HP Pavilion thats not mine, but I'm trying to fix it for a friend. It doesn't power on. I just gives one long beep, and pauses and beeps again ... and continues to do so. According to the HP website 1 beep means "The memory refresh circuitry on the baseboard is faulty". Can anyone confirm or deny this? If this is correct ... new motherboard? Any help soon would be much appreciated.