Intel IB850 user manual J3 CPU Fan Power Connector, J7 External ATX Power Connector

INSTALLATIONS

	Signal Name		Pin		Pin	Signal Name
	Vcc	1		5		Ground
	USB2-	2		6		USB3+
	USB2+	3		7		USB3-
CN3
	Ground	4		8		Vcc

J3: CPU Fan Power Connector

J3 is a 3-pin header for the CPU fan. The fan must be a 12V fan.

Pin #	Signal Name
1	Ground

2+12V

3Rotation detection

J7: External ATX Power Connector

Pin #	Signal Name
1	Ground

2PS-ON (soft on/off)

35VSB (Standby +5V)

J8, J9: System Fan Power Connector

J8 and J9 are 3-pin headers for system fans. The fan must be a 12V fan.

Pin #	Signal Name
1	Ground

2+12V

3Rotation detection

22 IB850 User’s Manual