I have this Clevo notebook which has 6-71-M74H0-D01-GP motherboard.
When i pressed the power button lights on but no display.
Also i noticed DVD rw not initializing and power not coing to the dvd rw.
CPU fan doesn't spin.
I assume That 3.3vSUS or 5vSUS not supplied due to these symptoms.

Unfortunately I couldn't find the appropriate BIOS for the laptop, So i didnt flash the BIOS this time.

CPU power regulator IC was the problem. HWPG signal not available on IC and it was ordered and replaced.Thanks.