BugCheck 1001

Hello, I recently bought a second-hand PC. It worked perfectly the first day, but on the second day, while running a few games—such as ETS2, MWC, and others—it would crash and go to a black screen. I checked the Event Viewer and found several errors: Kernel-Power 41, DistributedCOM 10016, and, on about three occasions, BugCheck 1001. I’m not sure what’s causing this. At first, I suspected the power supply due to the "Kernel" errors, but I’ve ruled that out. The graphics card is a likely culprit; it used to reach 66–67°C, at which point the system would freeze. I installed MSI Afterburner to increase the fan speed, which has kept the temperature between 30–41°C while playing ETS2 on high graphics settings. I’m not very knowledgeable about these things, so I would greatly appreciate any help or guidance on what might be happening. For reference, the PC’s components are: an Intel Core i7-3770S, an MSI GTX 950, and 12 GB of DDR3 RAM.