Well I have been using my compaq DeskPro for a couple of months now and I do not want purchase more ram because I whould have to buy sd and when I get my new comp I whould need ddr. So i was looking and my bios and unfortinitly my bios do not support over clocking so i was wondering if any one knows some subsitutes for a compaq deskpro and the mobo is a compaq.