Intel SE7520JR2 manual 8

	Table of Contents				Intel® Server Board SE7520JR2
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 I2C 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
	viii			C78844-002		Revision 1.0