SUPER MICRO Computer X8SIA-F user manual Connecting Cables, ATX Main PWR & CPU PWR Connectors

Chapter 2: Installation

2-6 Connecting Cables

This section provides brief descriptions and pin-out definitions for onboard headers and connectors. Be sure to use the correct cable for each header or connector.

ATX Main PWR & CPU PWR

Connectors

The 24 -pin main power connector (JPW1) is used to provide power to the motherboard. The 8-pin CPU PWR connector (JPW2) is also required for the processor. These power connectors meet the SSI EPS 12V specification. See the table on the right for pin definitions.

A	B
	8-Pin
24-Pin ATX
	Processor
Main PWR	PWR

ATX Power 24-pin Connector

Pin Definitions (JPW1)

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

12V 8-pin Power Connec-

tor Pin Definitions

KB/MOUSE

USB2/3

USB0/1

COM1

VGA

JPL2 JPL1

IPMI_LAN

JPI2C

JPW1

FLOPPYFAN1

JPUSB1	DIMM2A
	DIMM2B
	DIMM2C
B A	DIMM1B DIMM1A

DDR3 1066/1333 UDIMM/RDIMM required	DIMM1C	FAN2/CPUFAN
FAN2

		LE1
LAN1/LAN2		JLED
	CPU	JF1
		JF1

Pins	Definition
1 through 4	Ground
5 through 8	+12V

(Required)

A.24-Pin ATX Main PWR

B.8-Pin Processor PWR

FAN5 SLOT7 PCI-E 2.0 (2.5GT/s) X1

JPB:BMC

Hermon

X8SIA

COM2

SLOT6 PCI-E 2.0

SLOT5 PCI-E 2.0 X8

SLOT4 PCI-E2.0X8 IDT 89HI0524G2PS

SLOT3 PCI-E 2.0 (2.5GT/s) X1

	JPG1
JI2C1	SLOT2 PCI-E 2.0 (2.5GT/s) X4 (IN X8 SLOT)
JI2C2	JWOL:
	Wake on Lan

SLOT1 PCI 33MHz

USB5

JWOR
Wake on Ring	IPMB	USB6/7	USB8/9

PCH

+

USB4	CMOS CLEAR
JBT1

FAN3

+

T-SGPIO1 T-SGPIO2 FAN4 JL1 Chassis Intrusion

JL1:

JD1

JWF1

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