When I run SMC my fans kick to 4000rpm and SMC shows that my default speed is 4000rpm, I cannot put it lower then 4000 only higher. I have tried uninstalling the program and reinstalling. Any suggestions?
No, the lowest setting possible is not 4,000 rpm. I have 2,000, 2,500, etc. up to 4,500 rpm settings set up and switch to them as needed. Make sure you have the latest version of SCMfancontrol installed, I believe that is 2.2.2.
You may have to delete the related preference file in your user library as well as delete and reinstall the app to get it working correctly, but you should not be able to set up various speed settings from the preferences for the application.