First off your motherboard must support monitoring. Not all do. As far as checking that if you don't know.....try the manufacturer's website.
For a monitoring program there are many out there. You can probably just search google for a cpu temp monitor program or something like that. I forget which one I used previously, I thik MotherBoardMonitor is what it was called....not sure. It seemed to work pretty well.
Then you'll need to do a little research to find out whether there's any offset needed for your temp monitoring. Not sure if this is still such an issue today or not, but back when I was doing this with my system, I actually had to add 11C to the temp it reported to get the actual temp because there was an offset.......
Anyhow, I know this probably doesn't help much, but hopefully it helps a little.
b
|