I ran cpu-z and i am not getting a very steady clock it goes from 2500mhz to 3060 mhz while cpuz is running i have a 3.33g celeron and the clock stays almost exactly the same. I don't know if this could be much of a problem or not. I couldn't install that memory test on in windows i am going to try and get a linux on the other hard drive and install it on there a test it. All drivers and updates are the latest. I have a 500W power supply from Rosewill.