BSOD - primarily when using Lightoom (sometimes just randomly)

OK, if changing a motherboard and GPU hasn't helped and all stress tests and diagnostic tests have passed and only Lightroom is causing the problem, the next step is contact Adobe support. You need to outline everything you've done in detail (hardware changes, stress tests, diagnostic tests) and see what they have ot say. If nothing else is causing the BSODs then it has to be that. Quite how it's throwing up 0x124 stops I don't know, but if it's the common cause then you need to get in touch with Adobe.

Report back with what they say.

You can't stress it too much as long as the cooling is there. I run Prime95 for 24 hours at times. Prime will only crash your computer if there is something wrong with it. Just keep constant watch on CPU temps. However, that is not really important right now. If you are running stable and everything is good, don't worry about it unless you plan on overclocking it. In that case, you need to run Prime for a long time to make sure it is stable. If it is not stable at stock, don't bother with overclocking it. It will never be stable.

You're very welcome. Once you feel your problem is solved, please mark the thread as solved.