Chapter 2: Installation

2-6 Connecting Cables

ATX Main Power Connector

A24-pin main power connector is located at J40. This power connector meets the SSI EPS 12V specifica- tion. See the table on the right for pin definitions.

4-pin CPU Power Connector

A4-pin 12V power connector is lo- cated at J41 on the motherboard. This power connector also meets the SSI

EPS 12V specification, and is required to ensure adequate power to the pro- cessor. See the table on the right for pin definitions.

ATX Power 24-pin Connector

Pin Definitions

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 4-pin Power

 

 

 

Connector

 

 

 

Pin Definitions

 

 

 

Pins

 

 

Definition

 

 

 

1 and 2

 

 

Ground

 

 

 

 

 

 

 

 

3 and 4

 

 

+12V

 

 

 

 

 

 

 

 

 

 

 

 

 

KB/MOUSE

JKB

COM1

 

VGA

Parallel Port

 

USB 3/4/5/6

 

USB 1/2

LAN

B

CPU Fan

4-Pin PWR

FAN1

 

Processor

 

DIMM1A

 

Intel G33

JPUSB1

Audio

Fan5

 

North Bridge

 

Slot7 PCI-E x1

FAN2

DIMM2A DIMM1B

 

S I/O W83627DHG

DIMM2B

24-pin ATX PWR

 

Floppy

AA. 24-pin ATX PWR B. 4-pin PWR

C2SBA

 

Slot6 PCI-E x16

 

 

GLAN CTRL

 

 

 

 

Slot5 PCI-E x4

 

JBT1

 

 

 

 

JI2C1

JWOR

JPL1

 

JI2C2

Audio CTRL

 

 

 

JP5

Slot4 PCI-33MHz

 

 

Audio Enabled

 

 

CD-IN

Slot3 PCI-33MHz

JP2

Intel ICH9(R)

South Bridge

BIOS

 

 

 

Battery

 

 

I-SATA2

 

JP3

 

 

 

 

JWD

 

 

I-SATA3

 

JLED

FAN3

 

 

 

 

I-SATA0

I-SATA4

 

 

 

FAN4

 

 

 

 

 

I-SATA1

I-SATA5

 

CTRL

 

 

 

LE1

FP USB 7/8

FP USB 9/10

 

Panel

 

 

 

 

 

 

Front

 

Slot2 PCI-33MHz

 

 

Front Audio

 

Speaker

IDE CTRL

 

 

ITE 8212 JPUSB2

 

 

 

COM2

Slot1 PCI-33MHz

Buzzer

 

 

 

 

 

 

SPKR1

WOL

 

JL1

Front-Access USB 12

Front-Access USB 11

IDE#2

 

IDE#1

 

2-13

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SUPER MICRO Computer C2SBE Connecting Cables, ATX Main Power Connector, Pin CPU Power Connector, Pin ATX PWR B -pin PWR