SUPER MICRO Computer X6DAT-G user manual Cmos Clear, Watch Dog Enable/Disable, Clear Cmos

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 system, remove the AC power cord and then short JBT1 to clear CMOS. Do not use the PW_ON connector to

clear CMOS.

Watch Dog Enable/Disable

JWD is used to enable Watch Dog, a system monitor that can reboot the system when a software ap- plication hangs. Pins 1-2 will cause WD to reset the system if an application hangs. Pins 2-3 will generate a non-maskable interrupt signal for the application that hangs. See the table on the right for jumper settings. Watch Dog can also be enabled via BIOS.

Watch Dog

Jumper Settings (JWD)

Jumper

Position Definition

Pins 1-2 WD to Reset Pins 2-3 WD to NMI

Open Disabled

es

2

4-pin

ATX PWR

J P F

J1B4

Force

Fan6

Fan5 3

P W R

/BK uoM

J

P W

USB 0/1

DIMM 1B

Bank 1

J 4 0

DIMM 1A

Bank 1

COM1

DIMM 2B

Bank 2

ParrallelJLAN1Port

DIMM 2A

Bank 2

DIMM 4B

Bank 4

DIMM 3B

Bank 3

DIMM 3A

Bank 3

J 2 3

DIMM 4A

Bank 4

COM2

JLAN1

Tumwater

Line_In/

(NorthBridge)

J C 2

Line_Out

J C 1

Mic

	FAN7	J 2 4		JP12	J1D1			FAN1
			JP13					F1
								J
CPU1
								1
						JP15		D
								J
					FAN2
								JOH1
								R
CPU2								A
								J
							J WD

WD

	JPAC	SI/O
		x16 PCI EXP #6
C D 2C D 1
		PCI #5-33MHz
	GLAN	x8 PCI EXP #4
	CTRL
		PCI#3-33MHz
		PCIX#2-66MHz
1
LPJ		PCIX#1-66MHz ZCR
		J W O R
			J W O L

Fan3

J L 1

J K 1

Fan8

IDE #2

IDE #1

Battery

Floppy

BIOS

J 2 7

1

SATAI2C

S P K R

6300ESB

TB

JPS1

J

SATA

CAT ELD

6041

(South

Marvell

Bridge)

DS2 DS10

DS3

DS11

DS4

DS12

USB2/3

DS1 DS9

Fan4

J D 2

J 2 2

SATA1

SATA0

SMB

us

SATA0

SATA1

SATA2

SATA3

Intel's

Marvell's

Clear CMOS

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