Every since I installed MSFS 2020 on launch day I’ve had a reoccurring issue where my PC would power cycle/reboot whenever I tried to launch a new flight. I never had any crash logs. My PC wasn’t crashing but simply turning off and turning back on. It usually happened whenever I hit the FLY button but on rare occasions I was able to get into a flight but then it would always reboot either at some point during my flights or whenever I ended a flight. I tried dozens of fixes that I found online and nothing worked.
My PC has:
10th Gen i9 10900K 240mm AIO water cooled
RTX 2080 Ti FTW3 Ultra hybrid water cooled
2 TB NVME SSD
64 GB DDR4 3600 RAM
750 watt PSU
After a month of trouble shooting with no luck, I finally read somewhere that I may have had a faulty PSU, so I just replaced my 750 watt PSU with a new EVGA 1200 Watt Platinum PSU. I know 1200 watts is overkill for my system but I wasn’t taking any chances. Plus at some point, I will be upgrading to the new RTX 3080, which is a major power hog, so I figured I might as well get a PSU with plenty of extra power for future upgrades.
So after installing my new PSU, I started up MSFS and flew at least a dozen different flights and never had a single reboot. I’m pretty sure my original PSU with 750 watts was plenty for power for my system, so I must have had a faulty PSU. What’s odd is that my PC never rebooted while running any other apps or any other graphics intensive games or other sims like X-Plane 11. It only rebooted when flying in MSFS 2020.
Since I’ve installed the new PSU, the sim has been running great. No stuttering, no freezing, no rebooting, and I’m averaging 35 to 50 FPS with all ultra settings. Thank God this issue is finally resolved.