Upgrading MSI AMD MOB system to 64 GB for MSFS 2024?

Posting this in the event others experience what I experienced this past weekend. After pulling 2 X 16 GB Corsair Vengence RAM modules, 32GB total, and inserting Corsair Vengence 2 X 32 GB for 64 GB total. Clearly did so into the prescribed RAM slots.  My system would only recognize the presence of (1) 32 GB module.  Pulled and reseated both modules several times with no change. Believing I had one bad module I swapped the positions.  Same result.  Put both 16 GB modules back in and no problem.  

To make matters worse, my system was taking upwards of 4 minutes plus to clear the BIOS boot diagnostics, causing me on several occasions to believe I had a system failure.  Heart attack time.  Then, worried about a failure,  I went to another room to use my wife's laptop to so some web searching. I returned to my system to find it had booted.  Just took forever.  Also noted my system SSD read/write speeds were clearly sluggish. 

Here is what I learned.

MAG B650 TOMAHAWK WIFI MOB (identical reported issues, AMD MOB version)
CORSAIR Vengeance DDR5 RAM 32GB (2x16GB) 6000MHz CL30 AMD Expo iCUE 
AMD 7800X3D CPU

Flashed BIOS with update dated September 2024

In BIOS disabled: DRAM Expo
Enabled: Memory Context Restore
Enabled: Power Down
Changed DRAM speed: from 6000Mhz to Auto. after learning the 7800X3D tops at 4800Mhz RAM speed.

System back to normal boot time and read/write times

Hope others similarly affected find this report and resolution.

Edited October 22, 20241 yr by fppilot