Your RAM is probably good and your hard disk checks out fine. There is no way that you can test your motherboard; that requires bench testing in a shop. However you can test your CPU and your RAM with Prime95. Follow the instructions in this tutorial: https://www.sevenforums.com/tutorials...t-prime95.html

Run 3 separate tests, one on each of the settings (Blend, Small FFTs, Large FFTs). Post back with your results.