crwdns2934241:0crwdne2934241:0 Dan

crwdns2934249:0crwdne2934249:0:

More likely your discrete GPU has failed. This was a common issue in this series. Try to find a 2012 logic board with a minor alteration to the LVDS cable it’s a direct drop in!

crwdns2915684:0crwdne2915684:0:

open