Too sensitive when hiring

Had the socket strip 2 weeks of usage. The point for the correct switching on and off is difficult to find. Have a normal Destop PC Intel i5 with 350 watt power supply, already the other recessions had read with "too few watts problems" and thought that misses you.
After about 3-4 days the "slave side" night has his own business and once the device every 0.5 seconds and turned off. Today I swapped for a normal bar in order to sleep peacefully can.