User`s manual

2-30
X8DTT/-F/-IBX/-IBXF/-IBQ/-IBQF User's Manual
JF1
LE4
SW1
J18
JWR2
JWR1
FAN2
FAN1
FAN4
JP10
JWOL1
J19
JWD1
J119
JPL1
JPG1
JPEN1
JBT1
LEB1
LEB2
LE2
JBAT1
JNMI1
JSPK1
J_UID_OW
T-SGPIO0
I-SATA5
I-SATA4
P1 DIMM3B
P2 DIMM1A
P1 DIMM3A
P2 DIMM1B
P1 DIMM2B
P2 DIMM2A
P1 DIMM2A
P2 DIMM2B
P1 DIMM1B
P2DIMM3A
P2DIMM3B
VGA
COM1
LAN2
LAN1
USB0/1
IPMI_LAN
PCI-E 2.0 GEN2 X16
CPU2
I-SATA3
I-SATA1
IPMB
USB2/3
I-SATA0
PWR I2C
CPU1
T-SGPIO1
P1 DIMM1A
FAN3
Battery
X8DTT Series
BIOS
I-SATA2
Intel
5520/5500
Intel
ICH-10R
Nuvoton
WPCM450
PHY
InfiniBand CTRL
LAN CTRL
InfiniBand
Connector
4-pin PWR
(North Bridge)
(South Bridge)
JTPM1
LE1
Rev. 2.0
JBMC1JPB
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.
A. Clear CMOS
B. Watch Dog Enable
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 Defi nition
Pins 1-2 Reset
(default)
Pins 2-3 NMI
Open Disabled
A
B