Corvalent H61SB, User Manual, Page: 37 / 70

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Chapter 3 AMIBIOS Setup
The H61SB motherboard features the American Megatrends UEFI BIOS. The system configuration
parameters are set via the BIOS setup. Since the BIOS Setup resides in the ROM BIOS, it is
available each time the computer is turned on.
American Megatrends’ UEFI BIOS (Basic Input/Output System) pre-boot firmware is the industry’s
standard product used by most designers of X86 computer equipment in the world today. Its superior
combination of configurability and functionality enables it to satisfy the most demanding ROM BIOS
needs for x86 designers. Its modular architecture and high degree of configurability make it the most
flexible BIOS in the world.
When your platform is powered on, the BIOS tests and initializes the hardware and programs the
chipset and other peripheral components. During this time, Power On Self Test (POST) progress
codes are written by the system BIOS to I/O port 80h, allowing the user to monitor the progress with
a special monitor. Appendix B lists the POST codes and their meanings.
During early POST, no video is available to display error messages should a critical error be
encountered; therefore, POST uses beeps on the speaker to indicate the failure of a critical system
component during this time. Consult Appendix B for a list of Beep codes used by the BIOS.
BIOS Boot Sequence
Although you can select the device boot order in the BIOS setup, there are situations were booting
from an alternate device may be required, like booting from an USB drive or DVD. The H61SB BIOS
allows for boot sequence changes by using the F11 key. After powering up the board, please press
F11, and a pop-up window with all available boot devices will appear. Select the desired boot device
and press enter. This will NOT change the original boot sequence.
Starting BIOS Setup
AMIBIOS has been integrated into many motherboards for over a decade. In the past, people often
referred to the AMIBIOS setup menu as BIOS, BIOS setup, or CMOS setup.
To enter the CMOS setup screens, follow the steps below:
1. Power on the motherboard
2. Press the <Del> key on your keyboard when you see the following text prompt:
Press DEL to run Setup
3. After you press the <Del> key, the CMOS main BIOS setup menu displays. You can access the
other setup screens from the main BIOS setup menu, such as the Chipset and Advanced menus.