I understand that you are inquiring about the possible problems that you may find regarding swapping your motherboard without reinstalling the operating system.
In regards to your question, we usually request to reinstall the operating system as most of the motherboards will have complete different hardware and may cause compatibility problems.
In your specific case, both of the motherboard are very similar and they even share lots of features. This means that you may try replacing the motherboard and check if you receive any errors. At this time you should not expect any mayor errors.