Having stability issues on your computer especially while gaming? random reboots? computer turns off and turns back on? most probably its your power supply which is faulty, however you should test other components as well like RAM and GPU on another computer. So in this video I show you how to test the voltages on a power supply.

Buy the Corsair VS550 550 Watt power-supply:
http://amzn.to/2vU0EmM

Multimeter:
http://amzn.to/2etNFC3 (FLUKE)
http://amzn.to/2xGmb4f (Mastech)