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I have a Mac Pro 6,1 2013 which turns on for a few seconds, then turns back off, where do I start with diagnosing the issue?
Sounds like a Failed Logic Board :( Part: https://www.thebookyard.com/product.php?… (UK) https://www.ebay.com/itm/284584975952?mk… (US) Guide: Mac Pro Late 2013 Logic Board Replacement