when i was watching youtube my computer suddenly turned off, when i turned it on what happened is i can turn it on fans spin but after an millisecond it turned off i did the same again, press the start button the fans spin after a millisecond it stopped. guys what do you think is the root cause for this? is this about my PSU Motherboard or CPU? or Etc (i can see my motherboard light up inside tho when my avr is on)