I have not read the second part of this thread but original poster is all over the place with multiple part replacements, many different things going on, without clear answers to basic original questions, which were:
Originally, you had a system on which you ran memtest inside Windows which crashed your Windows installation. At that point original poster was asked to run memtest from a boot USB or a boot CD and post whether memtest failed. Also, OP was asked to confirm that there was no modifications done in BIOS as far as overclocking was concerned of either RAM or anything else. A follow up would have been to test sticks individually, of course. What makes you think RAM is faulty if it wasn't tested outside Windows?
If these answers were provided, then I'm sorry I missed them but if they were not - OP moved on to multiple other things based on assumptions that the system had problems OP read about other people having, rather than taking an organized approach to see if we can pinpoint if there was a specific hardware problem on OP's system (not someone else's) that was causing the original problem or if it was Windows itself which caused the original crash, in other words, if this was a software problem.