Appendix D:
UEFI BIOS Recovery
The following content contains information on BIOS configuration with the X14SAE/X14SAE-F
motherboard.
Important: Do not upgrade the BIOS unless your system has a BIOS-related issue. Flashing
the wrong BIOS can cause irreparable damage to the system. In no event shall Supermicro
be liable for direct, indirect, special, incidental, or consequential damages arising from a
BIOS update. If you need to update the BIOS, do not shut down or reset the system while the
BIOS is updating to avoid possible boot failure.
Overview 151
Recovering the UEFI BIOS Image 151
Recovering the Main BIOS Block with a USB Device 152
Overview
The Unified Extensible Firmware Interface (UEFI) provides a software- based interface
between the operating system and the platform firmware in the pre-boot environment. The
UEFI specification supports an architecture-independent mechanism that will allow the UEFI
OS loader stored in an external storage device to boot the system. The UEFI offers clean,
hands-off management to a computer during system boot.
Recovering the UEFI BIOS Image
A UEFI BIOS flash chip consists of a recovery BIOS block and a main BIOS block (a main BIOS
image). The recovery block contains critical BIOS codes, including memory detection and
recovery codes for the user to flash a healthy BIOS image if the original main BIOS image is
corrupted. When the system power is turned on, the recovery block codes execute first. Once
this process is complete, the main BIOS code will continue with system initialization and the
remaining Power-On Self-Test (POST) routines.
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X14SAE/X14SAE-F: UEFI BIOS Recovery
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