What to do with a restarting computer?

Question

Iron

Hello, my computer began to freeze frequently and even sometimes reboot. In one day, while playing CS:GO, I logged in several times from the SLAM program (broadcasts my music into the game microphone). I tried without it - everything was fine, but I had to reboot. In general, I deleted this program.
I just came home, turned on the low-frequency music to the fullest and the computer lags again, later off. Now I sit and think: "Maybe the sub is to blame, standing on the system unit?" I know that EMW don't negatively affect the computer, but what about bass vibration? (when I played CS:GO I also twisted the sub to the maximum) Is it possible that the mother reboots from the bass vibration?
I will be glad to any answers, but I ask less criticism and more explanations. I don't have much programming experience, but I try.
Just now, while waiting for an answer, the computer turned off the image without making any sounds and without turning off. Apparently she went to another world, but oh well, I'll replace it. Is it possible that the computer restarted because of the video card? (GeForce GT430, purchased in 2012).
Roman Crabbs, I want to tell you that I checked the temperature, the motherboard is the hottest - about 60 °, but this temperature has always been, and to lags.

Answer 1

You first check everything for overheating.

Answer 2

Maybe either the subwoofer or the camp is poorly grounded, one cuts out the other

Answer 3

Check the PSU, check the voltage, maybe it's dying.