SUPER MICRO Computer P8SCI Connecting Cables, Power Supply Connectors, Pwon Connector, Atx Pwr

P8SC8/P8SCi User's Manual

2-6 Connecting Cables

Power Supply Connectors

The primary power supply connec- tor (J1) on the P8SC8/P8SCi meets the SSI (Superset ATX) 24-pin specification. Refer to the table on the right for the pin definitions of the ATX 24-pin power connector. You must also connect the 4-pin (J2) processor power connector to your power supply. Refer to the table below right for the J2 (12V) connector.

ATX Power Supply 24-pin Connector

Pin Definitions (J1)

Pin Number Definition			Pin Number Definition
13	+3.3V			1		+3.3V
14	-12V			2		+3.3V
15	COM			3			COM
16	PS_ON#			4			+5V
17	COM			5			COM
18	COM			6			+5V
19	COM			7			COM
20	Res(NC)			8		PWR_OK
21	+5V			9		5VSB
22	+5V			10		+12V
23	+5V			11		+12V
24	COM			12		+3.3V
		+12V 4-pin
Required		Connector
			(J2)
Connection		Pins #			Definition
		1 & 2			Ground
		3 & 4			+12 V

PW_ON Connector

The PW_ON connector is located on pins 1 and 2 of JF1.

		ATX PWR
KB/MS	JPWAKE1	ATX-24 Pin PWR	Fan5
1		PF

PW_ON

Pin Definitions

(JF1)

Pin # Definition

1Signal

2+3V Standby

12V 4-Pin PWR

PWR-On

Fan1

4-Pin

USB0/1 KB/MS

JPWAKE1		ATX-24 Pin PWR		Fan5			Fan1
			F						4-Pin
			JP						PWR
VGACOM1 PortParallel	B1				CPU
	PJUS		E7221		(LGA 775)
			CopperRiver
			NorthBridge
GLAN1				DIMM 1A
GLAN2				DIMM 1B				Fan2
								Fan3		1
			LE1	DIMM 2A						FJ
GLAN				DIMM 2B						JLED
CTRL
GLAN			PCI-X 133/100 MHz				PXH-V			Buzzer
										9
			ICH6R							J
CTRL				BIOS	Battery					JSLED
JPL1			SouthBridge				WOL
JPL2				JBT1
BChannelSCSI				JBT1		IPMI	Floppy	IDE		AChannelSCSI
			PCI 33MHz						5J
		PCI-Ex1		SCSI CTRL
				7902 W			COM2			J L 1
		PCI-Ex1						USB2/3
JWOR
SATA3	SATA2	SATA1	SATA0	JPA1		JW D

USB6/7 Fan4

20	19
Ground	NMI
X	X
Power On LED	Vcc
IDE/SATA LED	Vcc
NIC1 LED	Vcc
NIC2 LED	Vcc
Overheat/Fan Fail LED	Vcc
X	X
Ground	Reset	Reset Button
3V Standby	Signal	Power Button
2	1

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