If you have an Athlon processor, I would recommend a small free app called VCool. It will both cool your cpu and allow you to monitor both your cpu temp, system temp and fan speeds. I use it on all computers with Athlon processors and it is a real gem.
it did the same for me...the help file has a really good explanation on setting it up.
the main things you need to configure are:
put a check in "Automatic Fan speed"
then, in the Configure button...
click the plus signs next to the temperatures and uncheck all of the boxes, then recheck the fans that are associated with each temperature. if one of the temperatures has no fans associated with it, or you want to manually control it...uncheck all the boxes.
in the fan tab, uncheck any fan ports that aren't in use.
same for the speed tab.
you can rename all of the temperatures and fans to make them easier to work with...the hard part is figuring out which one is which
for that, i go in the BIOS and see what it says, then i go back to windows and see which temps/fan speeds are the closest.
but I can't find the piece of paper I had it written down on right now.
Time For and install tomorrow, this one is dead.
I shouldn't outright blame the SpeedFan. After digging around a playing a bit, I found that something is messed. As I lowered fan speed, the temps actually went down. I think the sensors are messed or something. I think what happened is that I actually overheated and locked up because of that.