That's a good question -- for MSI. All that could be done by folks here is to verify the socket. The design of the board and the implementation of the BIOS are under the control of MSI, so they have to answer these other questions. They may have files on their web site that cover this - or you may have to ask them directly.
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As stated by n_scott_pearson, our recommendation is that you contact the system manufacturer to obtain a confirmation about CPU compatibility.
Even if the socket matches, it is recommended to check the website of the Original Equipment Manufacturer (OEM) for a list of compatible processors for the system. Only the OEM can provide which processors are compatible for the system. You can find additional details below:
According to the product specifications, the board supports 7th / 6th Gen Intel® Core™ / Pentium® / Celeron® processors for LGA 1151 socket.
You can find a list of compatible CPUs here https://www.msi.com/Motherboard/support/H270-GAMING-M3#support-cpu
Intel Customer Support Technician