If you’re reasonable, you would mark post #3 as the solution, since @joeschmuck mentioned the steps to take, which included running a memtest on your RAM.
If you’re wise, you would mark post #9 as the solution, since @joeschmuck correctly advised you to run at least 5 memtest passes, to rule out any false negatives.
If you’re all about the power of community, you would write one final reply that thanks @winnielinnie because he used the “point up” emoji (
) on @joeschmuck’s posts.[1][2] Then you would ask a moderator to lock this thread, to prevent anyone from protesting.
If you want to be the genius of the world, you would mark this post as the solution, since memtests are a total waste of time.