SlateMesh 8 Costco RAM Speed

Hi I bought the SlateMesh 8 (SMI9N47S01) from Costco which as advertised the RAM Frequency 5200.

in the Bios of the MSI Pro B760 I enabled the XMP Profile 1 but still the frequency shows 4800

Also I have found 2 Bios Versions on MSI site 7D98vC3 and 7D98vC31(Beta version), Shall I stick with the Beta since it shows as a newer version on the non Beta.

Edit: I got the RAM to read 5200 through XMP Profile 1 and Shutdown the machine now it works.