Monitor is black - ASUS P5L-MX Motherboard

it is turn on,connected and powered,and switch on,the green light on the motherboard is on,no beep and nothing on the screen.the monitor is new and it works in other desktop computer. it is turn on,connected and powered,and switch on,the green light on the motherboard is on,no beep and nothing on the screen.the monitor is new and it works in other desktop computer.

There are 2 possible causes, first, your RAM sticks have failed (one or more) second, your motherboard has a fried Graphics chip. To check the last one you could fit a cheap Graphics card, This eill prove or disprove the failed Graphics chip on the motherboard. Try the computer with each RAM stick removed (one at a time) Remember to turn the power off at the mains before you remove or fit anything in the case. If you still have the same problem, then you will need to try the graphics card route. There are 2 possible causes, first, your RAM sticks have failed (one or more) second, your motherboard has a fried Graphics chip. To check the last one you could fit a cheap Graphics card, This eill prove or disprove the failed Graphics chip on the motherboard. Try the computer with each RAM stick removed (one at a time) Remember to turn the power off at the mains before you remove or fit anything in the case. If you still have the same problem, then you will need to try the graphics card route.