I&#x27;m running such a system at this very moment. It has a Phenom II 550 Black Edition (i.e. sold to be overclockable&#x2F;unlockable), and by toggling a BIOS option, I was able to unlock two more cores. I run it at rated clock speed, and it has been rock-solid since the day I built it up.<p>I can build a large project in NetBeans as fast on this system as on a hex-core FX-6100 (and I can watch my CPU monitor clearly showing all four cores running during the build).<p>CPU temperatures stay well within limits with the stock cooler.