Strange whirring noise leads to lower FPS
AMD Phenom X4 955 Black Edition
Gigabyte GA-970A-D3 Motherboard
8GB RAM Kingston
WD 320GB hard drive 8MB cache 5400 RPM (bought used)
Powercolor HD 6850 1GB
Coolermaster eXtreme Power Plus 600W
Antec 300 case
For the past week or so, all of my start ups have been accompanied by this loud, clicking/whirring sound that I have not heard in the 10 months that I have been using this computer. The first couple of days I wasn't too bothered to check what was wrong because it did not hinder my performance and only lasted about 15 minutes. The last two days, however, have been met with much lower FPS in my games (down from ~70 to 30 in LoL) and a persistent, lower-sounding clicking whirring noise that never goes away.
I have never overclocked before. I'm not sure how I should go about troubleshooting this. I opened up the side panel and turned on my computer once to try and pinpoint where the sound was coming from and it seemed like it was my CPU. Not entirely sure though.