You should do a clean install and see if your problems are solved. Reading between the lines of what you are saying, you did not do a clean install after the build. The old mini dump would not have bee there if you did. The most likely cause of your problems, at this point is you are trying to run new hardware on the drivers
from the older hardware. It will never work. First, go to your motherboards web site and download all the latest drivers for your board and save them to a USB flash drive, Go to Nvidia's web site
and download the correct drivers for your video card. After the install, let windows install all the updates it can find. Once they download drivers and you reboot, go back to Windows update and click, check for new updates. Keep doing this until it does not find anymore updates. Download and install Microsoft security essential's
. I suspect you will have a different experience with your installation then. If you have any questions, ask we will be glad to answer them.