I just recently bought and built a computer (the configuration will be at the end). I got all the software installed that I wanted: Steam, BF3, LOL, Skype, and zonealarm antivirus and firewall. My computer is running very very slowly at times and perfectly normal at other times, and I can't seem to figure out the problem.
Motherboard: ASUS M5A88-m
CPU: AMD FX-8320
GPU: EVGA GTX 560ti
RAM: G.SKILL Sniper Series 8GB (2 x 4GB) DDR3 1866
HDD: Seagate Barracuda 2 TB 7200 RPM
OS: Windows 7 Home Premium 64 bit
PSU: Corsair TX750 v2