Hey man, thank you for the response! I'm not sure what's the problem here yet, even though my PC crashes in the same situations as yours, and it happens like this: Usually it starts lagging a lot (like a huge FPS drop) and then it restarts by itself. Whenever I run OCCT memtest, the PC starts lagging the same way as it does when I have this issue, and that's why I'm suspecting of a graphics card VRAM problem. But since I'm on a budget, I really didn't want to spend $$$ on a new graphics and in the end it isn't the real problem. What do you think it might be? Was your scenario similar to what I described? Probably the graphics, huh? Again, thanks for your time!
