Im using a 939 K8N Gigabyte motherboard. I bought 2 sticks of ram and put them in, but after I did so, the computer wouldn't boot and instead continually beeped with no video being output ot the monitor. so I unplugged and replugged the video card and tried it. it got to the "the last attempt to restart the system from its previous location failed. Attempt to restart again?" I tried to push enter, but it did not register, despite the keyboard being lit up. When I turned off the computer, the keyboard and mouse continued to recieve power, as they were lit up. I tried removing the new ram, same problem. What should I do?