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X7DBU/X7DGU User's Manual

JWOR1
COM2
J7JBT1
JWOL1
JPL1 JPL2
J30
JL1
JOH1
JD1
Fan2
LE1
JF1
FP CTRL
JPW1
J17
LE2
SW1
J11
I2C1
I2C2
JPG1
Rear UID
ES1000
Video CTRL
Intel ESB2
(South Bridge)
USB4
JWD
JK1
USB2/3
J18
SMB
CPU1
JPW3
COM1
VGA
LAN1
LAN2
J28 SXB2: PCI-E x8
SXB1: PCI-E x16
PCI-X 133 MHz
(North Bridge)
Video Memory
X7DBU
J29
Fan4
Fan8
CPU FAN2
Fan3
Fan1
20-Pin Main PWR
JPW2
4-Pin PWR8-Pin PWR
Fan7
CPU Fan1
PWR SMB
Fan5
Fan6BuzzerSP1
J9B2
J9B1
J8B3
J8B2
J8B1
J7B3
J7B2
J7B1
DIMM4B
SGPIO1
SGPIO2
J27
UIO PWR
LAN
CTRL
JLAN2
JLAN1
J15
JCOM1
JKM1
Bank1
I-SATA0
I-SATA1
I-SATA2
I-SATA3
I-SATA4
I-SATA5
BIOS
J22
Floppy
SIMSO
IDE#1
CPU2
JP1
DIMM1A
DIMM1B
DIMM2A
DIMM2B
DIMM3A
DIMM3B
DIMM4A
Battery
Bank2 Bank3 Bank4
KB/MS
USB 0/1
J5
J14
S I/O
Intel 5000
J9
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.

A
B

A. Clear CMOS

B. Watch Dog Enable

Watch Dog Enable/Disable

Watch Dog is a system monitor that c an rebo ot

the system when a softwa re applic ation ha ngs.

Close Pins 1-2 to reset the system if an a p-

plication hangs. Clos e Pins 2-3 to generate a

non-maskable interr upt signal for the application

that hangs. See the table on t he right for jumper

settings. Watch Dog must als o be enabled in the

BIOS.

Watch Dog
Jumper Settings (JWD)
Jumper Setting De nition
Pins 1-2 Reset
(*default)
Pins 2-3 NMI
Open Disabled