Thread: PC beeps and blanks

I have an HP computer that is powered by a 230-W PSU. I bought a Leadtek PX9600GT graphics card. I used an LCD monitor that was later damaged. I started using my old 14-inch CRT. When it boots, a long beep can be heard from my cabinet, the screen goes black and the orange indicator turns on.

To begin with, a now PSU is not really sufficient for running a GeForce 9600GT graphics card. The beep you are hearing is an alarm. Get a power supply with a higher rating such as 450W or higher.