This is the E-mail from a technician on campus, i don't if know it's reasonable
I have been assigned to service your MacBook. I finish the troubleshooting process and have found that the Main Logic Board video GPU(Chipset) has failed causing a no video issue. I have checked warranty status with Apple and unfortunately your MacBook Pro Apple warranty has expired. However, I can ship your MacBook Pro laptop to AppleCare Service for out of warranty repair for the cost of $309.95. The repair time would be approx 3-5 business days . The repair does include a 90-day warranty from Apple. Please let me know how to proceed with the repair.
This is the problem description i put it in another thread
Go to this link https://forums.macrumors.com/threads/546544/3B[/SIZE]