Cmos Clear; Watch Dog Enable/Disable - Supermicro X8DTU-LN4F+ User Manual

Motherboard
X8DTU-LN4F+

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 then short JBT1 to clear CMOS.
Note 2. Clearing CMOS will also clear any passwords.

Watch Dog Enable/Disable

Watch Dog (JWD) 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 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.
LAN4 LAN3
UID
J1
LAN2
J2
X8DTU-LN4F+
Rev. 2.0
B
D20
Winbond
A
BMC
Intel
COMS
Clear
IOH-36D
JBT1
Intel
BIOS
ICH10R
SATA0~5
LE1
FAN3
FPCTRL
T-SGPIO2
User's Manual
VGA1
COM1
LAN2 LAN1
USB0/1
IPMI_LAN
PHY
LAN1
SP1
JBT1
FAN8/CPU1
CPU1
CPU2
3-34
Watch Dog
Jumper Settings
Jumper Setting Defi nition
Pins 1-2 Reset (default)
Pins 2-3 NMI
Open Disabled
A. Clear CMOS
B. Watch Dog Enable