Hello; It is possible that a particular device is preventing the system from accessing the operating system . For testing purposes, please uninstall all devices except for the CPU, minimum amount of system memory and the video card. Remove the USB keyboard, mouse, hard drive ,front panel, optical unit and test the system with the minimal configuration If the issue is resolved, then proceed to add one device at a time with subsequent reboots to determine, which device is causing the problem.
I have the same problem but the above fix will not work for me! What should I do? It's so frustrating