Hi Kok
I am Dave, an Independent Advisor, I will help you with this . . .
If your your Windows 10 is an OEM licence or based on an OEM licence that will not have transfer rights to a new PC or Motherboard, because it is locked to the current motherboard
So, if you want to replace the motherboard or get a new PC, you would need to purchase a Windows 10 licence, and then use that product key to activate your Windows10 on the new hardware, you can purchase a new Windows 10licence form the page below, that licence will then be associated to your Microsoft Account, it will be a full retail licence and will have transfer rights in the future to a new motherboard or PC . . .