New installation. UEFI not reachable.
New installation. UEFI not reachable.
I'm assembling a new PC using some affordable components I found on discount offers. BIOS access isn't available, and no Windows is installed. Once the ASUS splash appears, I see the Ami screen displaying my drives and the USB boot drive. I've experimented with repeatedly pressing delete and F2. Switching between three wired keyboards has confirmed they all function properly. I removed the CMOS battery for five minutes. The setup includes an Asus Prime H510-E Core i7-11700k with 16GB (two 8GB) G.Skill DDR4 XFX RX-6600, Samsung EVO 500GB.
Interesting, a forum comment suggests holding down the DEL key before turning on, which doesn't seem like a typical solution. It might be worth exploring booting into Linux or a simpler Windows environment and pressing Shift during startup to reach the BIOS for further troubleshooting.
Most Asus motherboards employ Del as their interrupt during the POST (power-on self-test) process. When your Asus logo appears on the screen, the system has completed its POST sequence and is prepared for the bootloader to install an operating system. Just before the bootloader begins, give the Del key one or two quick presses. This will trigger an interrupt to the BIOS, stopping the bootloader from loading and instead guiding you to UEFI/BIOS. Avoid holding down Del or F2; instead, repeatedly press and release these keys. Neither action will exit the UEFI/BIOS, and once inside, no further input is possible unless you enter it manually. I suspect this isn’t your main concern because your system seems to pass POST successfully. However, if you’re stuck, your motherboard may have Asus’ CrashFree BIOS, enabling BIOS flashing via a dedicated rear port without needing an OS. Download the latest BIOS from Asus’s website and follow their instructions, as detailed in the motherboard manual. (Also, ensure your keyboard is connected to the rear I/O ports while attempting to press Del—some boards delay initializing front I/O ports until later in POST.)