Hi Ahmad Hussein,
Windows Server requires ECC (Error Correcting Code) RAM which is not supported by Intel core i7-11700KF. Some features of the OS may not be available if you install Windows Server 2016 on it.
The hardware requirements for Windows Server can be found here.
https://learn.microsoft.com/en-us/windows-server/get-started/hardware-requirements?tabs=ram
Best Regards,
Ian Xue
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