Hello, A couple of weeks ago my MacBook Pro 15" early 2011 started shutting itself off randomly. Sometimes it just froze with various patterns and such, indicating graphical issues. Eventually it wouldn't turn on. The sleep light indicator would turn on and stay lit and you could hear the HDD spinning, but no sign of life other than that. I tried a bunch of stuff including replacing RAM, resetting PRAM and SMC, using an external display etc. but still nothing. I figured it would be the known problem with the AMD GPU. I was honestly relieved since the repair program ends on February 27th and I'd rather have it fail now than on March 1st. Anyways, I wanted to access my HDD without having to actually taking it out of the computer and I read that some people managed to get ⁓1 hour of access to the laptop until it crashed again if they covered their computer in a blanket and let it heat up for a bit. So I made the stupid decision to do just that. The computer still wouldn't turn on after it cooled down, but the next day it did. The computer worked perfectly. And there's the problem. The computer is still working a week later. I've tried to kill it by stress testing it (it has now been running constantly for approximately 72 hours), as suggested by some people online, but the damn thing won't die. I took it in to an Apple Store, but they couldn't find any problem. I talked to the technician and he said it could be discussable to maybe have it repaired free of charge if it failed after the program expired since I actually took it in before the program ended. I doubt that the computer will run all smooth forever, should it be an issue with the AMD chip, so I'd rather have it fail now than in 6 months. Now to my question What is the best way to make video issues reoccur? Should I just continue stress testing the laptop? Should I limit the fan speed to create heat while stress testing it? Or should I just give up and continue using my computer as normal?