Apple's discussion boards and the MacFixIt inboxes are filled with a surprisingly high number of reports indicating backlight burnout (though other factors may be at play) on Apple Cinema Displays.

We may receive a commission on purchases made from links. Depending on whether you play intense games or watch fast-paced and vibrant media, you might notice certain moving images leaving behind ...

Use these fixes if your new CPU shows a Black screen with no beep problem. Before you proceed, ensure your CPU is compatible with your motherboard. Installing incompatible hardware, like CPU, RAM, etc ...