Supermicro PDSM4-B Datasheet download pdf (Page 38)

2-20

PDSM4/PDSME User's Manual

PCI-X#1 100MHz ZCR

PCI-X 133 MHz

S

UPER PDSM4

®

Pentium Dural Core CPU

LGA 775

KB/MS

COM1

GLAN1

Fan5

E7230

(North Bridge)

LAN

CTRL

JPL1

SCSI

JL1

SATA1

Fan4

Buzzer

JLED

IDE

24-Pin ATX PWR

ICH7R

DIMM#1A

(Blue)

DIMM#2A (Black)

DIMM#1B (Blue)

DIMM

#2B (Black)

WOL

JBT1

JF1

(South Bridge)

J31

J28

JPW2

12-pin PWR

J3

SATA3

Fan2

Battery

J9

JPA1

Fan3

JPA2

PCI-X#2 100MHz

SCSI Channel

FP CTR

L

LE3

SATA0

SATA2

JWOR

JWD

SPKR

(The Green Slot)

USB

J15

VGA

JG1

GLAN2

LAN

CTRL

S I/O

COM2

JPL2

Printer

Floppy

USB 3/4

USB 5/6

Slot1

Slot2

Slot4

PCI-E x4

Slot5

Slot6

PCI-X 133 MHz

BIOS

PXH

JP5

JP6

Slot7

LP IPMI

JPG1

Mukilteo

JA1

LE1

LE4

JPF

JPW1

Fan1

ATI

Rage XL

CPU Fan6

W83792

PW3

Watch Dog Enable

JWD controls Watch Dog, a system

monitor that takes action when a soft-

ware application hangs. Close Pins

1-2 to reset the system if a program

hangs. Close Pins 2-3 to generate a

non-maskable interrupt for the program

that hangs. (This function requires soft-

ware support.). Watch Dog must also

be enabled in BIOS.

CMOS Clear

JBT1 is used to clear CMOS. Instead

of pins, this "jumper" consists of contact

pads to prevent the accidental clearing

of CMOS. To clear CMOS, use a metal

object such as a small screwdriver to

touch both pads at the same time to

short the connection. Always remove

the AC power cord from the system

before clearing CMOS.

Note: For an ATX power supply, you

must completely shut down the system,

remove the AC power cord and then

short JBT1 to clear CMOS. Do not

use the PW_ON connector to clear

CMOS.

B. Clear CMOS

A. Watch Dog Enable

Jumper

Position

Pins 1-2

Pins 2-3

Open

Definition

WD to Reset

WD to NMI

Disabled

Watch Dog

Jumper Settings

B

A

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