As per the title thread, I have an issue on my PC where it will random restart without warning warning but this only happens on the desktop and never while I am playing intensive games which I have been doing a lot of since installing the new RTX 3080 graphics card over a week ago. The issue has been happening for the last 18 months but happens relatively infrequently, perhaps once per week or fortnight at most. Now, I do have a hard drive (H) that is flagged with Caution by SMART but have been meaning to replace this drive with a new Toshiba one I bought over a year ago but have not gotten around to doing it yet. Besides, the drive still works and I actually download files to it plus Steam seems to use that drive to update games (which I suspect may be what is triggered the restart, especially as some patches are huge and take a long time to install, e.g. the one for the excellent Swords and Fairy 7 this week). Because the drive was still working and I don't really play any of the games installed on that drive then I thought I would just leave it until the drive finally died for good. 18 months on and it is still working but I am wondering if the PC restarts are connected with this drive as Steam is set to only update games when I am not playing them so it would obviously be updating the games while I am browsing or the PC is idle on the desktop. Anyone know? I am pretty sure it is not RAM nor power supply related as the restarts only happen when I am NOT playing games so the PC is 100% stable when it is being pushed with a game with ray-tracing and high-framerates for example on my GTX 3080. My PSU is an 850 W one from XFX.