I'm having this issue with mainly GW2 although it happens very seldom with other games, GW2 is the main culprit.
When playing, my computer will randomly shut down (as if the power plug has been pulled, no notifications) and turn itself back on without an error as if nothing happened.
I've been researching and a lot of signs point towards overheating which was what my first guess was. My current troubleshooting steps so far have been:
I'm not sure what else to do without replacing high dollar items. I've already swapped out the PSU because I thought that was it and it wasn't the problem, so I'm worried about shelling out more money without getting a second opinion.
The restarts are so random, it has happened immediately after my character has loaded OR a solid 20 minutes after gameplay. There is no trigger as far as I can tell, I can be standing idle and it will happen. This also happens rarely with other games, League and WoW being victims at least once. Temperatures will be higher while playing WoW for example and yet the computer will be fine.
Any ideas on what to try that I haven't already? Thanks friends.