Cmos failure no display

[melquid]

Hello,
Computer switches on ok, led's alight on mb. No display response at all. Replaced display adapter. Cleared cmos. Replaced battery. Removed memory and all peripherals. Swapped hard drives. Still no display. Display and lead tested seperately and ok.

 

[THE UNKNOWN]

what's your specification?

 

[nick1200]

tried updating your bois ? Via flashing the bois ?