Technical Product Specification
Power Supply Cold Redundancy
Power Supply Firmware Update
Power Supply Compatibility Check
BMC firmware reliability enhancements:
o Redundant BMC boot blocks to avoid possibility of a corrupted boot block resulting
in a scenario that prevents a user from updating the BMC.
o BMC System Management Health Monitoring.
9.2
Platform Management Features and Functions
9.2.1
Power Subsystem
The server board supports several power control sources which can initiate power-up or
power-down activity.
Source
Power button
BMC watchdog timer
BMC chassis control
Commands
Power state retention
Chipset
CPU Thermal
PCH Thermal
9.2.2
Advanced Configuration and Power Interface (ACPI)
The server board has support for the following ACPI states.
State
Supported
S0
Yes
Working.
The front panel power LED is on (not controlled by the BMC).
The fans spin at the normal speed, as determined by sensor inputs.
Front panel buttons work normally.
S1
No
Not supported.
S2
No
Not supported.
S3
No
Supported only on Workstation platforms. See appropriate Platform Specific Information
for more information.
S4
No
Not supported.
Revision 1.37
External Signal Name or
Internal Subsystem
Front panel power button
Internal BMC timer
Routed through command processor
Implemented by means of BMC
internal logic
Sleep S4/S5 signal (same as
POWER_ON)
Processor Thermtrip
PCH Thermtrip
Table 60. ACPI Power States
Capabilities
Turns power on or off
Turns power off, or power cycle
Turns power on or off, or power cycle
Turns power on when AC power returns
Turns power on or off
Turns power off
Turns power off
Description
Platform Management
103