It started with Guild Wars 2: Random crashes, seemingly unconnected. Then it spread to other games. After a few hours with Black Mesa, a crash to the desktop. Occasionally, the dreaded BSOD (Blue Screen of Death).
No amount of driver updates fixed the issue. On the GW 2 tech forums the problem seemed widespread. When an Arena Net employee would bother to respond to one of the many threads about the same issue, they always just said, "Check your RAM."
Yeah, right. In 20 years of fixing and building computers, not once had I ever had a problem with RAM.
So what could it be?