I agreed, A lot of precautions needed for us to install the new mobo to the new case.
The first built computer that I started was a Pentimum 350mhz machine many years ago. That is the first time I learned to install the mobo to the case, I carelessly touching the mobo base with the case metal parts and that caused the no POST problem.
If there is a computer pro nearby, better let him install the mobo or try that yourself under the guidance of the computer pro, this way, you can learn how to install the mobo next time.
Good luck on computer learning.
Cheers,
Bill
Tech Manager, WPTinc.