GPU and CPU usage drops

Niiken

Commendable
Jul 21, 2016
4
0
1,510
I have gtx 560 and intel core i5 760. And i wonder what causing lags in mostly in ARMA 3. It is like when u are trying to scope cpu and gpu usage drops almost to 0, screen freezes for few seconds. I got around 50-60 fps till it drops with cpu and gpu usage. I wonder that it could be caused by my PSU. I got LPK12-23 3*SATA 420Watt ATX Computer Power Supply. Is it possible that these drops can caused because my psu is weak?