HI, Im new to this forum but I really need help. My computer has been working for quite some time now, about 5 years, and suddenly i turn it on and usually when i turn my computer on, it hums very loudly, beeps, and then starts to come on. Today, I turned my computer on and it just kept on humming and the monitor showed no signal. I then started fooling around with the cables, unplugging and plugging them back in and that didnt work. So I plugged my monitor into the regular slot on the cpu and the desktop screen came on. Before my monitor was plugged into my graphics card. Now my computer is on but the hum is constant and never stops. What can I do to fix this situation?