As soon as the screen turns on, repeatedly press the key or the F2 key until the BIOS screen appears.
Disclaimer: Updating your BIOS carries a small risk. Only update if necessary (e.g., for new CPU support or critical bug fixes). asus ez flash 3 utility v03.00 update
Go to the Official ASUS Download Center . Enter your exact motherboard model number. Under "Driver & Utility," select your operating system, then navigate to the "BIOS & FIRMWARE" section. You'll see a list of available BIOS versions. It is recommended to download the latest, non-beta version. As soon as the screen turns on, repeatedly
Once prepared, follow these steps to use the ASUS EZ Flash 3 utility: Go to the Official ASUS Download Center
A: Ensure your USB drive is formatted to FAT32 and is connected directly to a motherboard USB port (back of the PC), not a front-panel hub.