The listing in the bios indicates the RAM compatibility.
The listing in the bios indicates the RAM compatibility.
The Asus Prime Z690-P typically has around 6,400 MB RAM, which matches your setup. Your current configuration with 6,400 GB RAM appears sufficient for most tasks. The search results mentioning 6,000 suggest it's a common benchmark, but your system seems well within capacity.
Sure, you can increase the OC of Ram beyond that and it will still work, so 6400 shouldn't cause any issues.