So I have been getting really bad fps lag spikes almost half a year now. I have been trying to monitor my temperatures of my components but they seem quite normal. The lag lasts long and makes action games unplayable. My computer is 4 ½ years old now and I'm thinking that there is some problem in my hard drive. The problem is in my hardware, not my internet connection. I hope we can fix this problem and I'm here to inform you about everything you ask me. I wouldn't really want to invest in new parts but if it's the only option I will have to do it.
My specs (Asus CM6870-US-3AD prebuilt):
-Processor: Intel Core i7-3770 3.4GHz (64bit Quad-Core)
-Memory: 16GB DDR3 1600
-Storage: 540GB and 372GB HDD
-PSU (changed): SilentiumPC Vero L1 650W (80Plus)
-GPU (changed): MSI GTX 960 GAMING 2G
-Motherboard: ASUS H77