![Supermicro Supero X7DBU User Manual Download Page 45](http://html1.mh-extra.com/html/supermicro/supero-x7dbu/supero-x7dbu_user-manual_1403934045.webp)
2-24
X7DBU/X7DGU User's Manual
JWOR1
COM2
J7
JBT1
JWOL1
JPL1
JPL2
J30
JL1
JOH1
JD
1
Fan2
LE1
JF1
F
P
CT
RL
JPW
1
J17
LE2
SW1
J11
I2C1
I2C2
JPG1
Rear UID
ES1000
Video CTRL
Intel ESB2
(South Bridge)
USB4
JWD
JK1
USB2/3
J18
SMB
CPU1
JPW
3
COM1
VGA
LAN1
LAN2
J28
SXB2: PCI-E x8
SXB1: PCI-E x16
PCI-X 133 MHz
(North Bridge)
Vid
e
o
M
e
m
o
ry
X7DBU
J29
Fan4
Fan8
CPU FAN2
Fan3
Fan1
20-Pin Main PWR
JPW
2
4-Pin PWR 8-Pin PWR
Fan7
CPU Fan1
PWR SMB
Fan5
Fan6
Buzzer
SP1
J9B2
J9B1
J8B3
J8B2
J8B1
J7B3
J7B2
J7B1
DIMM4B
SGPIO1
SGPIO2
J27
UIO PWR
LAN
CTRL
JLAN2
JLAN1
J15
JCOM1
JKM1
Bank1
I-S
A
T
A
0
I-S
A
T
A
1
I-SA
T
A
2
I-
S
A
T
A
3
I-S
A
T
A
4
I-
S
A
T
A
5
B
IO
S
J22
F
lo
p
p
y
S
IM
S
O
ID
E
#
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 can reboot
the system when a software application hangs.
Close Pins 1-2 to reset the system if an ap-
plication 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 (JWD)
Jumper Setting Defi nition
Pins 1-2
Reset
(*default)
Pins 2-3
NMI
Open
Disabled