Intel SE7520JR2 manual 186 C78844-002

Connectors and Jumper Blocks			Intel® Server Board SE7520JR2
FMC Signal Name	FMC		Description
	Pin
LAN_I2C_3VSB_SCL	58	LAN usage
HDD_FLT_LED_N	64	Drive Fault LED output driven when FMM detects a bad drive from the Hot
		Swap controller on the Hot Swap disk Drive sub-system.
FMM_PS_PWR_ON_N	65	Power On Request to the system Power Supply
COOL_FLT_LED_N	66	Cool Fault LED output driven when FMM detects a bad Fan if SSI front panel is
		detect.
FMM_CPU_VRD_EN	67	This signal is driven by the FMM to enable the CPU VRDs and allow the VRD
		power good chain to complete. This signal can also be used to keep the system
		in reset for an extended time, beyond what the chipset RST_BTN_N can
		provide.
FMM_SCI_N	68	SCI event request. If ACPI EC is supported by FMM, this signal is used for ACPI
		interrupts.
ICH_PWR_BTN_N	69	FMM pass through of Front panel power button to chipset
FMM_SPKR_N	72	FMM uses this to create Beep Codes on the system audible alarm. This signal is
		configured as an Open Drain buffer in the FMM and must be pulled up to 3.3V
		Standby on the motherboard
FP_NMI_BTN_N	73	NMI / Diagnostic interrupt from front panel. Actual NMI generated by SMBUS
		command to mBMC
FP_SLP_BTN_N	74	Front panel Sleep Button input, if used
FP_ID_BTN_N	75	Front panel ID button, will cause the ID light to toggle
SYS_PWR_GD	76	Signal from the end of the baseboard VRD Power good chain. This signal
		should be the last VRD power good indication generated on the baseboard.
		Usually this would be the signal feeding the Chipset Power OK input. Used by
		FMM in conjunction with RST_PWRGD_PS to determine if all critical VRDs
		have successfully reached their nominal value.
CPU2_SKTOCC_N	80	Indicates that a Processor is in the application processor socket
CLK_32K_RTC	81	This signal is used for “Synchronized clock with system RTC”. FMM can
		synchronize own RTC with system RTC. IPMI define synchronized method.
		clock comes from the Chipset RTC function.
CPU1_SKTOCC_N	82	Indicates that a Processor is in the primary processor socket. If this socket is
		detected empty and there’s an attempt to power up the system, the FMM will
		output an Error Beep Code and prevent the System from turning on
FMM_SOUT	85	EMP/SOL Serial Data Out. This is the Serial Port data output from FMM and
		should be connected to the SIN signal in the SIO3 device
FMM_SIN	86	EMP/SOL Serial Data In. This is the Serial Port data input into the FMM and
		should be connected to the SOUT signal in the SIO3 device
FMM_DCD_N	87	EMP/SOL Data Carrier Detect. This is the Serial Port Data Carrier Detect input
		into the FMM and should be connected to the DCD signal in the SIO3 device
FMM_RTS_N	88	EMP/SOL Request to Send. This is the Serial Port Request to Send output from
		FMM and should be connected to the CTS (Clear to Send) signal in the SIO3
		device
FMM_DTR_N	89	EMP/SOL Data Terminal Ready. This is the Serial Port Data Terminal Ready
		output from FMM and should be connected to the DSR (Data Set Ready) signal
		in the SIO3 device
FMM_CTS_N	90	EMP/SOL Clear to Send. This is the Serial Port Clear to Send input into the
		FMM and should be connected to the RTS (Ready to Send) signal in the SIO
		device
ICMB_RX	93	Inter Chassis Communication Management Bus receive data
ICMB_TX	94	Inter Chassis Communication Management Bus transmit data
ICMB_TX_EN	96	Inter Chassis Communication Management Bus transceiver enable
186		C78844-002	Revision 1.0