If you have i2c compiled in the kernel you should be able to install lm_sensors and run
When you run that and it asks you a question, type in what ever is in UPPER case. It sort of hints at you.
After you get that far you may want to install Gkrellm. It displays the results in a window and is really cool looking.
You may also want to add the distro you are using to your profile. That will help us sometimes.
Later
edit: forgot the grins. <slaps forehead>