SUPER MICRO Computer X8DTU-6TF+ Cmos Clear, Watch Dog Enable/Disable, Clear Cmos Watch Dog Enable

Chapter 3: 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 clear- ing CMOS.

Note 1. For an ATX power supply, you must completely shut down the system, remove the AC power cord and short JBT1 to clear CMOS.

Note 2. Clearing CMOS will also clear any passwords.

Watch Dog Enable/Disable

Watch Dog (JWD1) is a system monitor that can reboot the system when a software ap- plication hangs. Close Pins 1-2 to reset the system if an application hangs. Close Pins 2-3 to generate non-maskable interrupt sig- nals 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

LED2	LED7		LAN2 LAN1		USB0/1	KB/MOUSE
UID	TLAN2 (10GbLAN2)	(10GbLAN1)	TLAN1	COM1
UIOP
			VGA
					IPMI_LAN

A. Clear CMOS

B. Watch Dog Enable

SAS BBU

J120

SAS0~3

SAS

CTRL

LED6 LSI 2108

LED5LED4

JPS1B

J2: PCI-E 2.0 X16

J1: PCI-E 2.0 X4 (in X16)

Intel 82599	JPL1
10 Gb LAN 1/2
CTRL
JPTLAN

CPU1

Intel 82576

LAN 1/2

CTRL

FAN8/CPU1

P1-DIMM1C

P1-DIMM1B

P1-DIMM1A

PHY

SP1

P1-DIMM2A P1-DIMM2B P1-DIMM2C

Battery

P1-DIMM3A P1-DIMM3B P1-DIMM3C

JI2C1	LED3	JWD1
JI2C2	JPG1	BMC
		CTRLA

X8DTU-6F+

TPM	JBT1
	Intel
	ICH 10R	BIOS
COM2
I-SATA0
USB6	I-SATA2
	I-SATA1
JL1	I-SATA3
USB4/5	I-SATA4
	JWF1 USB7
I-SATA5
	T-SGPIO2 T-SGPIO1	FAN6

Intel

IOH 36D

P2-DIMM3A P2-DIMM3C P2-DIMM3B P2-DIMM2A P2-DIMM2B P2-DIMM1B P2-DIMM1A P2-DIMM2C P2-DIMM1C

LED1	JOH1	FAN4 FAN5	IPMB
JF1				FAN3

	CPU2
				JPW1
FAN2	FAN7/CPU2	JPI2C1	FAN1	JPW3 JPW2

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