The motherboard is not a M51BC, that's the model number of that particular pre built. Assuming you want to overclock the cpu I need to know what motherboard you have, the spec sheet does not say. Pop off your side panel and look for a model number on the motherboard itself, or take a picture and post it. Also what gpu and what power supply do you have? For the power supply look for a label and give the brand and model. Also what cpu cooler? The stock amd cooler is not ideal for overcloking, and I doubt that pre built case has very good airflow so that might not be ideal either.