Supermicro P4SC8 User Manual download pdf (Page 35)

Chapter 2: Installation

2-17

Front Side Bus Speeds

JP1, JP2 are used to set the Front

Side Bus Speed for the processor.

It is best to keep this jumper set to

Auto. This jumper is used together

with the CPU Clock setting in the

BIOS. See the table on the right for

jumper settings.

Jumper

Position

Pins 1-2

Pins 2-3

Open

Definition

WD to Reset

WD to NMI

Disabled

Watch Dog

Jumper Settings (JP8)

JP1 JP2

Auto 1-2 1-2

100 MHz (x4) 2-3 2-3

133 MHz (x4) NC 2-3

Reserved NC NC

200 MHz (x4) 2-3 NC

Watch Dog Enable

CPU Speeds

Watch Dog Enable/Disable

Watch Dog is a system monitor that

can reboot the system when a soft-

ware application hangs. Close pins

1-2 to reset the system when an

applicantion hangs. Clsoe pins 2-3 to

generate a non-maskable interrupt

for the application that hangs. See

the table on the right for jumper set-

tings. Watch Dog can also be en-

abled via BIOS. Note: when en-

abled, the user needs to write his/

her own application software in or-

der to disable the Watch Dog Timer.

CPU

478 PGA

MCH

CPU FAN

COM2

USB 1/2

Parallel Port

KB/Mouse WakeUp

WOR

OHFAN

COM 1

VGA

GLAN 1

PCI 1-X

PCI-X 2

PCI 2

SCSI Channel A

BATTERY

BIOS

DIMM 0A

DIMM 0B

DIMM 1B

Watch Dog

FRONT PANEL CTR

BANK0

BANK1

Hance

Rapids

®

JF1

IR

S

u

p

e

r I/O

Ext Speaker

SATA LED

Keylock

JBTL1

24-pin ATX

Conn

S

UPER P4SC8

GLAN 2

PCI 1

DIMM 1A

CHS FAN2

ID

E2

K

B

/

M

o

u

s

e

USBWakeUp

Cha Instr.

LAN2 Enable

+12V PWR

PWR Froce On

(North Bridge)

CHS FAN4

CHS FAN3

CPU SPeeds

SATA1

Clear CMOS

USB3/4

VGA

En

a

b

le

GLAN CTLR

GLAN CTLR

OH Fan Force-On

External SCSI-B

SCSI

VGA

SCSI 1-2 Enable

IDE1

WOL

PWR LED

CHS FAN1

CPU FAN

SATA2

Floppy

SMBus

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