PC Keeps Restarting, No Bluescreen, could it be PSU?

[Jlg823]

PC keeps crashing with no bluescreen. It restarts and when it crashes it makes a little audio glitch. It happens sometimes when I'm gaming and other times randomly.

 

[hellraiser06]

It will be helpful if you post all your PC specs please.

CPU, motherboard, RAM, PSU, Graphics card, storage, case