Please help ! I Have 150SM-A laptop with PREMAMOD bios. Everything was ok but I hanged CPU and RING voltage to add 100mV and ovveride to 50mV. Now laptop does not boot up only blank screen is present. I tried to reset bios by removing battery from laptop and from motherboard for few minutes. Unfortunatelly after this nothing changed. Laptop switchen on for few seconds then turns of and turns on again in loop. The screen is dark.What can I do ?