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Table of Contents Intel® Server Board SE7520JR2
Revision 1.0
C78844-002
viii
5.1 Platform Management Architecture Overview ..................................................... 115
5.1.1 5V Standby ..........................................................................................................116
5.1.2 IPMI Messaging, Commands, and Abstractions xxx............................................116
5.1.3 IPMI ‘Sensor Model’............................................................................................. 117
5.1.4 Private Management Busses...............................................................................118
5.1.5 Management Controllers .....................................................................................118
5.2 On-Board Platform Management Features and Functionality..............................121
5.2.1 Server Management I
2
C Buses ........................................................................... 122
5.2.2 Power Control Interfaces .....................................................................................122
5.2.3 External Interface to the mBMC...........................................................................122
5.3 mBMC Hardware Architecture .............................................................................123
5.3.1 Power Supply Interface Signals...........................................................................124
5.3.2 Power Control Sources........................................................................................126
5.3.3 Power-up Sequence ............................................................................................126
5.3.4 Power-down Sequence........................................................................................ 126
5.3.5 System Reset Control..........................................................................................126
5.3.5.1 Reset Signal Output .........................................................................................126
5.3.5.2 Reset Control Sources .....................................................................................127
5.3.5.3 Control Panel System Reset ............................................................................ 127
5.3.5.4 Control Panel Indicators...................................................................................128
5.3.5.5 Control Panel Inputs......................................................................................... 129
5.3.6 Secure Mode Operation....................................................................................... 131
5.3.7 Baseboard Fan Control........................................................................................ 131
5.3.8 mBMC Peripheral SMBus....................................................................................131
5.3.9 Watchdog Timer ..................................................................................................131
5.3.10 System Event Log (SEL) .....................................................................................131
5.3.10.1 SEL Erasure...................................................................................................132
5.3.10.2 Timestamp Clock ...........................................................................................132
5.3.11 Sensor Data Record (SDR) Repository ............................................................... 132
5.3.11.1 Initialization Agent.......................................................................................... 132
5.3.12 Field Replaceable Unit (FRU) Inventory Devices ................................................ 133
5.3.12.1 mBMC FRU Inventory Area Format ...............................................................133
5.3.13 NMI Generation ...................................................................................................133
5.3.14 SMI Generation.................................................................................................... 133
5.3.15 Event Message Reception...................................................................................133
5.3.16 mBMC Self Test................................................................................................... 134
5.3.17 Messaging Interfaces........................................................................................... 134
5.3.17.1 Channel Management....................................................................................134