C7Z87-OCE User’s Manual

2-7 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. For information on Backpanel USB and Front Panel USB ports, refer to Page 2-17. For Front Panel Audio, please refer to Page 2-19.

ATX Main PWR & CPU PWR Connectors (JPW1 & JPW2)

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.

24-Pin Main 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

 

 

Pins

 

Definition

 

 

1 through 4

 

Ground

 

 

 

 

 

5 through 8

 

+12V

 

 

 

 

 

 

 

 

 

 

 

 

(Required)

B

A. 24-Pin ATX Main PWR

B. 8-Pin PWR

A

2-24

Page 44
Image 44
SUPER MICRO Computer C7Z87-OCE user manual Connecting Cables, ATX Main PWR & CPU PWR Connectors JPW1 & JPW2, Pin Main PWR