Is your case fan hooked up to a motherboard header that actually reads RPM? Not all fan headers offer full support, especially if it isn't PWM. Please, don't tell us what case fans you have, what type they are, and where you plugged them in!
Why don't you use a proper thermal monitor like HWinfo or Coretemp?
Wat. I'm just telling you I have proper airflow to rule that out of the equation. No program I've tried will tell me my core temps. They all say 0C. It must be a bad sensor or something.