Chapter 2: Installation

Power On_LED Connector

The Power LED connector is lo- cated on pins 15, 16 of JF1. (*Use JLED for a 3-pin connector.) This connection is used to provide LED indication of power being supplied to the system. See the table on the right for pin definitions.

NMI Button

The non-maskable interrupt button header is located on pins 19 and 20 of JF1. Refer to the table on the right for pin definitions.

PWR-On LED

Power_LED

Pin Definitions (JF1)

Pin

Number Definition

15+5V

16Ground

NMI Button Pin

Definitions (JF1)

Pin

Number Definition

19Control

20Ground

NMI

USB0/1 KB/MS

 

JPWAKE1

ATX-24 Pin PWR

 

Fan5

Fan1

 

 

 

 

JPF

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

VGACOM1 PortParallel

B1

 

 

 

 

CPU

PJUS

 

E7221

 

(LGA 775)

 

 

 

 

 

 

 

 

 

 

 

CopperRiver

 

 

 

 

 

 

NorthBridge

 

 

4-Pin PWR

20 19

Ground

X

Power On LED

IDE/SATA LED

NMI

X

Vcc

Vcc

GLAN1

DIMM 1A

 

 

NIC1 LED

 

 

 

 

Vcc

GLAN2

DIMM 1B

Fan2

 

 

Fan3

 

1

 

 

 

 

 

 

DIMM 2A

 

JLED

FJ

Vcc

 

LE1

 

NIC2 LED

GLAN

DIMM 2B

 

 

 

 

CTRL

 

 

 

 

 

PCI-X 133/100 MHz

PXH-V

Buzzer

GLAN

 

 

9

 

 

 

J

Overheat/Fan Fail LED

Vcc

CTRL

 

 

 

 

 

 

 

 

 

 

 

ICH6R

JPL1

 

 

SouthBridge

JPL2

 

 

 

 

 

 

 

B

 

 

 

PCI 33MHz

 

 

 

 

 

Channel

 

 

 

 

 

 

 

 

 

PCI-Ex1

 

 

SCSI

 

 

 

PCI-Ex1

 

 

 

 

JWOR

 

 

SATA3 SATA2

SATA1

SATA0

BIOS

Battery

 

WOL

JBT1

JBT1

SCSI CTRL

IMIP

ypplo F

7902 W

 

2MO C

 

 

JPA1

J W D

 

5J EID

USB2/3

USB6/7

JSLED

CS CIS ah nn Ale

J L 1

Fan4

X

Ground

3V Standby

X

Reset Reset Button

Signal Power Button

2 1

2-11

Page 31
Image 31
SUPER MICRO Computer P8SC8, P8SCI manual Power OnLED Connector, NMI Button, PWR-On LED, Nmi