Fixes for RAM "XMP" profiles or frequency issues are common in these patches.
Do not turn off your computer during the process. A power loss during a BIOS flash can "brick" (permanently damage) your motherboard. Common Troubleshooting American Megatrends 4.6.5 Bios Update
Select the Flash Utility and point it to the file on your USB drive. Fixes for RAM "XMP" profiles or frequency issues
Alternatively, restart your PC and repeatedly tap or F2 to enter the BIOS menu directly and view the version on the main dashboard. Step-by-Step: Updating the 4.6.5 BIOS 1. Identify Your Motherboard Model American Megatrends 4.6.5 Bios Update