First, here is a link to the exact computer that I just purchased: https://www.costco.com/Acer-Predator-G3-Gaming-Tower---Intel-Core-i7---8GB-Graphics-.product.100342463.html
The computer arrived two days ago. After everything was set up and I was downloading things like Google Chrome, etc., the computer shut down suddenly and a fan started blowing very loudly. I rebooted and it started downloading updates. I hoped that it was just a fluke and resumed what I was doing. Not long after that, it happened again. No BSOD or anything. Just shut down and a blowing fan. I didn't get a chance to do anything else with it for the rest of the day.
The next day (yesterday), it happened again, only this time it didn't run any updates when I rebooted. It just rebooted like normal - no message about a system crash or anything. So I started digging around and learned all about the overheating issues that Predator G3-710's have.
Long story short, I downloaded CAM to monitor my temperature and fans and Argus Monitor to set my fans to change speeds according to the temperature (after downloading CAM, I quickly realized that both the CPU and GPU fans were staying around 1000 rpm no matter how hot things got). Once again, I didn't have a chance to mess with my computer much after that.
So today, I have had all day to play around with my new computer. I played some Civ IV, some Skyrim Special Edition, and did plenty of browsing the web and watching YouTube. The whole time, thanks to Argus Monitor, the fans kept everything nice and cool (aside from the occasional spike, everything stays in the 30-40 deg C range).
But then, this evening while watching a movie on Amazon Prime, it happened again. Argus Monitor and CAM were both running, and yet my computer shut down just like before. By the time I got it back up and running, I was able to see that it was about 60 deg C and falling. I guess there's a chance that Argus crashed, but I never got an error or anything else to indicate that.
So that's the story so far. Am I missing something else here? Should I take the computer back to Costco? Should I send it to Acer? Is there some other software solution that could fix it?
Thanks for the help!