EXPO must be activated.
EXPO must be activated.
With your Ryzen 7 770x and MSI PRO B650M-A Wi-Fi card, enabling the 6000MHz EXPO setting could improve performance. Your current RAM (Corsair CMK32GX5MB2P6000C40) is 16GB at 4800MHz, so boosting it to 6000MHz might cause minor instability or thermal issues. Monitor temperatures closely and consider testing in a controlled environment. Some users report stability gains with this adjustment, while others notice slight delays. Check reviews and your specific model specs before proceeding.
You should generally enable EXPO. Otherwise, as you've discovered, the RAM will not run at its rated speed. You can always disable it again if you discover stability issues (or reduce clocks slightly), but without it, you're leaving performance on the table. Since both XMP and EXPO are technically overclocks, there's no guarantee they work, but generally should (though, EXPO being the "new" AMD tech isn't quite as reliable yet)