Dear all. My computer does not want to stay on for more than 5 seconds after switching it on. It just resets the whole time! Please help! Thanks! My specs are: e4500 core 2 duo 2.2, gigabyte GA-P35C-DS3R, 2x1gb chaintech apogee gt ram, msi n9800gt 512mb. I've tried resetting my cmos and that hasn't worked. I've also tried replacing ram. There are no beeps coming from the computer