crwdns2934241:0crwdne2934241:0 originalmachead

crwdns2934249:0crwdne2934249:0:

Generally if an external monitor does not show a signal your GPU/logic board is the issue.

'''There is no DIY fix for a bad GPU other than to replace the entire logic board.''' If the machine is still under warranty I would contact Apple.

''If this answer is acceptable '''please remember to return and mark it'''.''

crwdns2915684:0crwdne2915684:0:

open