SUPER MICRO Computer X8DTG-DF Cmos Clear, Watch Dog Enable/Disable, Clear Cmos Watch Dog Enable

X8DTG-DF User's Manual

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.

Watch Dog Enable/Disable

Watch Dog (JWD1) is a system monitor that reboots the system when a software applica- tion hangs. Close Pins 1-2 to reset the system if an application hangs. Close Pins 2-3 to generate a non-maskable interrupt signal for the application that hangs. See the table on the right for jumper settings. Watch Dog must also be enabled in the BIOS.

Watch Dog

Jumper Settings

Jumper Setting	Definition
Pins 1-2	Reset
	(default)
Pins 2-3	NMI
Open	Disabled

		VGA	COM1
	LE4			LAN2	LAN1
SBX1A	SW1	BJNMI1	LE2	IPMB
	JSPK1WD1J	JUIDOW
J11
			Winbond	JLPC80
					Intel
		JPCIE3	450R	JPG1 JPL1
			BMC		82576
					LAN CTRL
	PCI-
	E 2.0x4		CMOS	A
			CLEAR
	in	Intel
	x16	ICH10R	BIOS	Intel
	Slot	(South Bridge)
				5520
				IOH-36D

USB0/1

IPMI_LAN

PHY

J12

SBX 2A

+

A. Clear CMOS

B. Watch Dog Enable

I-SATA6		JPCIE1
I-SATA5 I-SATA4	SBX 1B	USB2/3
I-SATA3
I-SATA2
I-SATA1
T-SGPIO0 T-SGPIO1
FAN8

FAN7

X8DTG-DF

	P2	P2	P2	P2	P2	P2
CPU2	DIMM1B	DIMM1A	DIMM2B	DIMM2A	DIMM3B	DIMM3A

JBAT1

Battery

JPCIE2 SBX 2B

JPW1	P1DIMM3A	P1DIMM3B	P1DIMM2A
FAN4

JPI2C (PWR I2C)

P1 DIMM2B

P1 DIMM1A

P1 DIMM1B

CPU1

FAN3

FAN6 FAN5
Front PanelCTRL
LE1
JPW2
JPW3
FAN1
FAN2	4
JL1	1

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