Intel SE7520JR2

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