As a Mac owner you are privileged to receive
in or out of warranty a free over the counter 'Apple Service Diagnostics' test if you are having any issues, hardware or software;
from here you can make an informed decision about how to proceed:
Genius reservation http://www.apple.com/retail/geniusbar/
on-line https://getsupport.apple.com/GetproductgroupList.action
check warranty https://selfsolve.apple.com/agreementWarrantyDynamic.do
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related links:
https://www.apple.com/support/macbookpro-videoissues/
https://www.apple.com/support/exchange_repair/
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