SUPER MICRO Computer X7SBL-LN1/LN2 user manual Connecting Cables, ATX Power Connector

Chapter 2: Installation

2-6 Connecting Cables

ATX Power Connector

There are a 24-pin main power supply connector(JPW1) and an 8-pin CPU PWR connector (JPW2) on the moth- erboard. These power connectors meet the SSI EPS 12V specifi cation. For the 8-pin PWR (JPW2), please refer to the item listed below.

Processor Power Connector

In addition to the Primary ATX power connector (above), the 12V 8-pin CPU PWR connector at JPW2 must also be connected to your power supply. See the table on the right for pin defi nitions.

AB

ATX Power 24-pin Connector

Pin Defi nitions

Pin#	Defi nition	Pin #	Defi nition
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 CPU

Connector

Pin Defi nitions

(JPW2)

Pins	Defi nition
1 through 4	Ground
5 through 8	+12V

A.JPW1

B.JPW2

2-15