You also need to have a USB power draw thing (I don't remember the technical name but it plugs into the USB port and the stick plugs into that) for testing and adjusting voltage because you can end up with way to much power even at 500MHz if you have too much amp wise if you adjust too much on it.  After I finish each stick I just move the next stick onto it.  So you only need 1 of them and they are less than $20 on Amazon.