I have a relatively new gaming computer (bought October last year). Up until today it has worked flawlessly, but today when I was playing a game (Fallout 4) there suddenly came a flash/spark from the computer. The computer the immediately restarted and began booting up.
I held the start button for 5 seconds to force an emergency shutdown and then unplugged the computer. At this time there was a clear smell of burned electronics. I then opened the computer case and had a look inside to see whether I could locate the component that had caused the problem.
The inside of the case was rather dusty, but nothing looked visibly damaged. I removed the dust, plugged in the computer and tried restarting. It booted up without problems (only thing was that my desktop background had disappeared, but I think this was due to the crash, so the computer had not shut down correctly).
First thing I checked was the GPU temperature. It was around 45 degrees Celcius (so it has problably been around 55-60 degrees when the crash happened). So, well within the safe spectrum.
Right now the computer has been running without problems for around 30 minutes. I'm backing up my files and not doing anything graphics intensive.
So, of course this has me spooked. I have never had a computer flash/spark before, and I would like to locate the problem - is it the GPU, the PSU, a small spider that had crawled into the PSU or something completely different.
How do I go about trying to locate the problem?
(Acer Predator G3-710)
Intel i7-6700 3,4 GHz
16 GB RAM
GPU: GeForce GTX1080 (8 GB RAM)