Artesyn ATCA 7370 / ATCA 7370-S Installation and Use (June 2014) - Manual (Page 85)

BIOS
ATCA-7370/ATCA-7370-S Installation and Use (6806800P54F) 85
 Sends OS boot events.
 Reads slot information from the IPMI controller and fills the DMI structure Type 1 UUID.
The only supported interface is Keyboard Controller Style (KCS). The IPMI base address and
interrupt is provided to OS via SMBIOS structure type38 and is tested with Linux OpenIPMI
driver.
4.1.10.1 Watchdogs
The watchdogs in ATCA-7370 are implemented by BMC watchdog.
BIOS uses BMC watchdog in two phases:
 BIOS phase
 OS phase
BMC watchdog for BIOS phase is started by the BMC automatically after the payload board is
powered on. BIOS can disable BMC watchdog through the BIOS setup menu. If BMC watchdog
for BIOS is enabled, it will be disabled when BIOS setup menu is invoked boot to shell or boot to
OS. Timer value for BIOS phases is also configurable through BIOS setup menu. The default
time value is set to three minutes and the BMC watchdog for BIOS phase is enabled by default.
The BIOS can disable the BMC watchdog for OS loading phases through the BIOS setup. Timer
value for OS loading phases is also configurable through BIOS setup. The default timer value is
five minutes, and the BMC watchdog for OS phase is disabled by default.
If BMC watchdog times out in the BIOS phase, BMC will switch the BIOS bank.
4.1.11 SMBIOS Support
The BIOS includes SMBIOS structures according to SMBIOS 2.4 and IPMI1.5 specifications.