Just go to this section of the site
http://www.almico.com/sfdownload.php and look for
SpeedFan 4.27 and click on that, it will start to down load to what ever folder you pick. Once it is done just click on the exe and install it, read the "read me" file and now you have a program that will show you temps and fan speeds of your board, it dose allot more but don't mess with that other stuff if you don't know what you are doing... Don't worry you will get warning windows (the program can over clock your CPU and so on) for the stuff you shouldn't touch.
If you need more help let me know or just post here, but I am calling it a night.
FYI... This is just something for you to watch temps and fan speeds this will not fix any problem you are having with lock ups, but it will let you know if it is a temp problem by the readings it gives.