Artesyn ATCA-7350 Installation and Use (September 2014) - Manual (Page 118)

BIOS
ATCA-7350 Installation and Use (6806800G59G) 118
6.3 BIOS Flash Memory Organization
The ATCA-7350 supports two 8 Mbit (1 MByte) BIOS flash ROMs defined as BIOS bank A and
BIOS bank B. The IPMC controls the active and backup boot bank. By default the ATCA-7350
boots up from BIOS bank A. If the CPU fails to boot from the active BIOS bank, the active BIOS
bank is switched over to the backup BIOS automatically and the CPU tries to boot from the
backup bank. A firmware upgrade to the BIOS flash always affects the active BIOS bank. To
upgrade the backup BIOS this bank needs to become the active BIOS bank first. This can be
achieved via IPMI OEM command.
6.4 System Management BIOS
System Management BIOS (SMBIOS) is a Desktop Management Interface compliant method
for managing computers in a managed network.
The main component of SMBIOS is the management information format database, which
contains information about the computing system and its components. Using SMBIOS, a
system administrator can obtain the system types, capabilities, operational status, and
installation dates for system components. The management information format database
defines the data and provides the method for accessing this information. The BIOS enables
applications such as third-party management software to use SMBIOS. The BIOS stores and
reports the following SMBIOS information:
 BIOS data, such as the BIOS revision level
 Fixed-system data, such as peripherals, serial numbers, and asset tags
 Resource data, such as memory size, cache size, and processor speed
6.5 Legacy USB Support
Legacy USB support enables USB devices such as keyboards, mice, and hubs to be used even
when the operating system's USB drivers are not yet available. Legacy USB support is used to
access the BIOS Setup program, and to install an operating system that supports USB. By
default, Legacy USB support is set to Enabled.