So this critical error that I'm getting happens when my newly built rig shuts down at random intervals, though only while I'm gaming. Further information on the error as stated in the event logs: "The system has rebooted without cleanly shutting down first. This error could be caused if the system stopped responding, crashed, or lost power unexpectedly." Here's what my build's got: https://pcpartpicker.com/list/gGsCCb I thought the problem could be the other two HDDs I have plugged in, so I unplugged those, but I'm still getting the error. I thought maybe my PSU isn't delivering enough power, so I limited my GPU's power draw by -20% but it hasn't fixed the issue. I did a ram check and it came up good, though I haven't physically swapped it around. I have two 8GB sticks. I did a bunch of googling, and have found no fixes, apart from this: http://www5d.biglobe.ne.jp/~the_imai/etymology/kp41_en3.html But that sounds like whoever wrote it is well on their way to the loony bin, so.... Not sure what to do here, other than reinstalling Windows on another drive. I have W10 by the way. And then if worst comes to worst, begin trying to eliminate the problem by physically swapping out parts. I already spent $1300 on this thing, would prefer not to spend another $1300 and end up with two computers worth of parts. If you're wondering why the price is a little too high for this build, it's because I'm living in a third world country and ordering them in costs dough, which makes RMA kind of impossible. If anyone can help out, I'd appreciate it. It's a pretty nice computer for every day tasks so far, but no good for gaming, which is one of the primary reasons why I build the thing in the first place.