don't OC ON QUAD CORE, no point
wait till u have all the drivers and shizz,
2.7 QC there is no need for overclocking
i mean unless your playing a high end game, crysis for instance is like one of the most graphic games at the moment and for that to run i'd need to OC my dual core to 2.9 from 2.6 for it to run really well but 2.7 is plenty.