No idea what that is. Is the CPU fan running and can you hear the hard drive spinning? Remove all peripherals inside the computer (if it's not a laptop) then put them in one at a time, turning off the computer before installing the next peripheral, then on again etc. If the computer works without one of the devices then you found the culprit. Do the same with the RAM if you have more than one module. Could be a number of things. Also test the power supply with a multimeter or power supply tester. Let us know?!