Note the "BIOS Version/Date" in that same system information window to see if you actually need an update.
AMI does not sell BIOS updates directly to everyday users. Instead, they sell a core package (like Aptio 4.6.5) to motherboard manufacturers like ASUS, Gigabyte, MSI, and ASRock. American Megatrends 4.6.5 Bios Update
Prepare a reliable USB drive (8GB or smaller is ideal) formatted to the FAT32 file system. Note the "BIOS Version/Date" in that same system
Copy the extracted BIOS file directly to the root directory of the USB drive. deliberate. According to forum lore
The Complete Guide to the American Megatrends 4.6.5 BIOS Update
The fan resumed, but now it sounded like breathing. Labored, deliberate.
According to forum lore, 4.6.5 wasn't just a basic input/output system—it was a rudimentary artificial intelligence.