Computer would go dead (instant off) after running for apx 15 minutes. Would not restart for 30 minutes. After restarting this would happen sooner and not restart for longer until would not restart after sitting over an hour. Computer got to the point it was not usable.
With the step by step repair guide and a few tools from iFixit it went great. Haven't had so much fun
since I retired as an electronics technician 6 years ago. Thanks iFixit!
This repair involves working with tiny conectors and delicate cables. may not be for everybody.
If you are old like me you might need a magnifing glass.