My computer used to have cooling issues, which would cause it to automatically shut down. I replaced the fan based system with a water cooler and the temps dropped drastically, as expected. However, now my computer simply freezes during games or intensive software like game development (Unreal). Temps have stayed low, all my specs should be plenty sufficient (listed below). Stress tests indicate my GPU is fine, and 2x4 GB DDR3 ram is listed as sufficient for these programs. My last thought is power supply, which is 500W but is my last resort. Any thoughts?
CPU: AMD Athlon X4 860K
Motherboard: Gigabyte Micro-ATX FM2+
Ram: 2x4GB DDR3
SSD/HDD: SSD 1TB WD Blue
GPU: NVIDIA GeForce GTX 960
PSU: 500W EVGA (approx. 4 years old)
Chassis: Thermaltake Versa H22
OS: Windows 10
CPU: AMD Athlon X4 860K
Motherboard: Gigabyte Micro-ATX FM2+
Ram: 2x4GB DDR3
SSD/HDD: SSD 1TB WD Blue
GPU: NVIDIA GeForce GTX 960
PSU: 500W EVGA (approx. 4 years old)
Chassis: Thermaltake Versa H22
OS: Windows 10