I bought a new CPU some time in December, it is the AMD FX-4100 3.8ghz processor. I have not done any overclocking nor do I have a reason too. But, the fan has been over working itself for games that do not require much CPU power. Such as Counter Strike Global Offensive. My PC specs are: GPU: Asus Gtx 650ti 1gb, CPU: Fx-4300 3.8ghz processor. Mobo: Gigabyte GA-78LMT-USB3 Micro Atx. PSU: Rocketfish 550w modular power supply. Why does the cpu fan feel the need to run so fast and so loudly?