What power supply unit are you using? Did you reset your CMOS on the motherboard? Switch off the PSU, remove the small battery, press the power button, and let it run for 30 seconds. Reinsert the battery and restart the PSU to test.
What power supply unit are you using? Did you reset your CMOS on the motherboard? Switch off the PSU, remove the small battery, press the power button, and let it run for 30 seconds. Reinsert the battery and restart the PSU to test.