firstly, is win 10 on both PC now? Do this before swapping anything:
Reactivating win 10 on new PC
download the
Windows 10 media creation tool and use it to make a win 10 installer on USB
Yes, you will want to fresh install on both PC and Win 10 will try its hardest to find drivers for all your stuff... its pretty good now. Once installed, go to the web site of each motherboards and see if the drivers you have installed are newer.
boot from installer
follow this guide:
http://www.tenforums.com/tutorials/1950-windows-10-clean-install.html
when you reach the screen asking for licence, click "I don't have a key" and win 10 will continue to install and then once win 10 is on PC, follow a 2nd step from the 1st link above and reactivate win 10.
On the screen where you choose where to install win 10, if it gives you an error about GPT drives, delete all the partitions on the hdd and press next. If it still gives error, cancel out of the installer and restart PC and start installer again, it will accept next on that screen this time (some PC just need a restart here)