I have the amd 3400+ 64 bit socket 939. I had it running fine and it worked great. I then bought a new case and moved everything into it. No when I try to do multiply things at once the cpu usages get very high. For example I can be listening to a song,(legally) and ripping a cd(my very own cd I bought) and then the song with start to skip because of the very high cpu usage. Like 75-80 and thats all im doing. The usage during idle is between 0-8. Could it be because I moved the hard drive out of my old case and put in this one without a fresh install. No Idea what is going wrong, need help tho.