Intel SE7221BK1-E manual Keyboard and Mouse Connector, Miscellaneous Headers, Fan Header

SE7221BK1-E Technical Product Specification

Table 31. 9-pin Header Serial B Port Pin-out (J1B1)

Signal Name	Pin	Pin	Signal Name
DCDB	1	2	DSRB
RXDB	3	4	RTSB
TXDB	5	6	CTSB
DTRB	7	8	RIB
GND	9	10	Key

7.11 Keyboard and Mouse Connector

Two PS/2 ports are provided for use by a keyboard and a mouse. The following table details the pin-out of the PS/2 connectors.

Table 32. Keyboard and Mouse PS/2 Connectors Pin-out (KM9A1)

PS/2 Connectors	Pin	Signal Name
Keyboard	K1	RKBDATA
	K2	NC
	K3	GND
	K4	P5V_KB_MS
	K5	RKBCLK
	K6	NC
Mouse	M1	MSEDATA
	M2	NC
	M3	GND
	M4	P5V_KB_MS
	M5	RMSCLK
	M6	NC

7.12 Miscellaneous Headers

7.12.1Fan Header

There are four 3-pin fan headers. (JP5J1, JP5J2, JP7A1, and JP6A1) These fan headers have the same pin-out and are detailed below.

Table 33. Three-pin Fan Headers Pin-out (JP5J1, JP5J2, JP7A1, JP6A1)

Pin	Signal Name	Type	Description
1	Ground	Power	GROUND is the power supply ground
2	Fan Power	Power	Fan Power with FAN_SPEED_CNTL1 (Fan speed control)
3	Fan Tach	Out	FAN_TACH signal is connected to the LM96000 to monitor the FAN
			speed.

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