SUPER MICRO Computer X6DHE-G2, X6DH8-G2 manual Cmos Clear, Watch Dog

Chapter 2: Installation

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 sys- tem, remove the AC power cord and then short JBT1 to clear CMOS. Do

not use the PW_ON connector to clear CMOS.

Watch Dog

JWD controls Watch Dog, a system monitor that takes action when a software application freezes the system. Pins 1-2 will have WD re- set the system if a program freezes. Pins 2-3 will generate a non-maskable interrupt for the pro- gram that has frozen (requires soft- ware implementation). Watch Dog must also be enabled in BIOS.

Watch Dog

Jumper Settings (JWD)

Jumper
Position	Definition
Pins 1-2	WD to Reset
Pins 2-3	WD to NMI
Open	Disabled

J32

24-Pin ATX PWR

JPF

J1B4

Force PWR ON

Fan6 Fan5

4-Pin

KB/

PWR

Mouse

J9

DIMM 1B (Bank 1)

USB0/1

DIMM 1A (Bank 1)

COM1

J6

DIMM 2B (Bank 2)

DIMM 2A (Bank 2)

Parrallel Port

DIMM 3B (Bank 3)

DIMM 3A (Bank 3)

DIMM 4B (Bank 4)

J23

DIMM 4A (Bank 4)

VGA

J5

SUPER

®

X6DH8-G2

GLAN1

GLAN2

North

JPG1

Bridge

VGA

Enable

J20

RAGE-

5

X8 PCI-Epx #6

X

1J

Super

Clr

6

X8 PCI-Epx #5

I/O

ICH5R

J7

1J

CMOS

COM2

JBT1

JWD

GLAN

71

X4 PCI-Epx #4

WD Enable

BIOS

CTLR

J

82546

Fan7			PWR
				J24
			SMBus
CPU 1
CPU 2
8
		n
		a
		F
IPMI
	SI/O

Fault				JP12			PWR
PW							8-pin
								J1D1
		JP13	3rdPS	Alarm					F
								1
									n
									a
								JF1		Control
										FP
						JP15 JD1
				Reboot
				Opt. Enable
									Fan2
									JOH1
							Alrm Reset			JP14
				JL1CH Intru
		Fan3
		Floppy				IDE2			IDE1
	JP8				J4				J3

CMOS CLR

WD

J11

A

USB4

JPA1 SCSI

SCSICH

Enable

41J

PCI-X #3

133 MHz

Enable

7902

GLAN

Ultra320

JPL1

31J

PCI-X #2

100 MHz

PXH

SCSI

CTRL

Battery

21

PCI-X #1 100 MHz ZCR

J

J22

JS2

JPA2

SCSI CHA Term. Ena

JA1

WOR JWOR

SMBUS

SATA1

JPA3

SCSI CHB Term. Ena

Fan4

JWOL

Speaker JD2

USB2/3

SATA0

JS1

Ultra 320 SCSI CH B

WOL

JA2

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