I have opened up my tower and looked at the power supply case and all the numbers on it. I am very lost.
I want to install a second graphics card into my machine so that I can connect a second monitor to it (the onboard graphics card only has 1 VGA/DVI port), but when I try to install it, my power supply can't handle it (computer won't boot up).
What do I need to consider when getting a new power supply, and where can I find out this information? I have downloaded a piece of software called CPU-Z and that provides me with a lot of information about my computer.