820-2914 No image

[No-Clean]

Clean board, we replaced the GPU with new one

Chime sounds, external HD hast activity and caps lock key sometimes turns green when pressed after start up chime, but no image and no backlight at all.

 

[TCRScircuit]

Same symptoms before GPU replacement?

 

[No-Clean]

Not sure since it was sent here with not GPU other shop did not have it so we just installed a new one but no image

 

[No-Clean]

No external video on this one