Table 96. System Reset Sources And Actions; Acpi Power State Notify - Intel S7000FC4UR Technical Product Specification

BMC Functional Specifications
22.2.3

ACPI Power State Notify

If enabled through the Set ACPI Configuration Mode commands, the BMC sends the system's
ACPI power state changes (S0, S1, and S5) to other management controllers by sending the
Set ACPI Power State command on the IPMB as indicated by their SDR management device
records. The command is sent whenever there is a power state transition.
22.3 System Reset Control
22.3.1 Reset Signal Output
The BMC simulates a press of the front panel reset button to perform a system reset. The ICH
performs the rest of the system reset process. The BMC cannot hold the system in reset, and
once started, the process is asynchronous with respect to BMC operation. The BMC provides
system status indication through the front panel LEDs.
22.3.2 Reset Control Sources
All system resets result in the BMC running its sensor initialization agent service.
Standby power comes up
Main system power comes up
Reset button or in-target probe (ITP) reset
Soft reset / warm boot (DOS Ctrl-Alt-Del)
Hard reset
Command to reset the system
Set Processor State command
Watchdog timer configured for reset
PEF action
Exit BMC firmware update mode
22.3.3 Front Panel System Reset
The reset button is a momentary contact button on the front panel. Its signal is routed through
the front panel connector to the BMC, which monitors and de-bounces it. The signal must be
stable for at least 50 ms before a state change is recognized.
If secure mode is enabled or if the reset button is locked by the BMC, then the button does not
reset the system. Instead a platform security violation attempt event message is generated if the
reset button is pressed.
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Table 96. System Reset Sources and Actions

Reset Source
Intel order number E18291-001
System Reset?
No (no DC power) Yes
Yes No
Yes No
Yes No
Yes No
Yes No
Yes No
Yes No
Optional No
No Yes
ESB2 BMC Core TPS
BMC Reset
Revision 1.0