Hi I have the system as stated above, which currently has the geforce 7100 onboard graphics card installed right now. I have went through my BIOS, changed my settings to PCI-E graphics, uninstalled my onboard video card and even sweeped the driver on it. Is there any other solutions to why this video card is not working with my system? The problem I am getting is if I try to boot up my system with the GT 240 graphics card plugged into the motherboard is that my monitor, keyboard and mouse do not power up. I upped my power supply to a 400w supply since mine came stock with a 250. The fan on the GT 240 stays running but I do notice when I start up my system with my monitor plugged into my onboard card that I hear a little surging which doesnt happen when I try it without the new graphics card plugged in. Any solutions out there?