Originally Posted by
RinKaenbyou
It's absolutely, 100% possible for faulty hardware to only have issues with a specific game due to it putting a heavy load on the faulty parts of the hardware that others games aren't. Even if these other games are more intensive games, it doesn't mean the load is being put on those same faulty parts of the hardware.
It's also absolutely, 100% possible that it wouldn't happen consistently as well and this is something I have a good five years of experience with too due to my old PC having faulty hardware that was causing unpredictable, inconsistent, and outright baffling crashes that were seemingly unfixable because no one could figure out what piece of hardware was faulty. Not even professional PC techs could pinpoint the issues because every test they did on my PC came back clean. So yeah, it's completely possible for your crashes caused by faulty hardware to be inconsistent even when repeating the same actions/doing the same things/etc.
As for your last point: End user software operating on D3D11 and earlier cannot cause a PC to lock up, shutdown or BSOD a computer in the absence of hardware, driver flaws, or flaws in the operating system.