I am into PC modeling these few weeks, and decided to add a button for the extra fan I would be putting. The button is not working yet but soon it should be . I am running on a AMD 64. I know it is an way old PC, but I had some problems with my Core 2 ... ECT. Having crashes, Blue screen of death and lots more. Anyway I thing I should be contented I have a workable computer to get my work done.