Clear Cmos; Watch Dog - Supermicro X7DB8 User Manual

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 con-
nection. 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.
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 applica-
tion hangs. Close Pins 2-3 to generate a non-
maskable interrupt signal for the application that
is hung up. See the table on the right for jumper
settings. Watch Dog must also be enabled in the
BIOS.
GLAN1
GLAN2
SIMLP IPMI
SEPC
PCI-Exp x8
PCI-Exp x4
B
SMB PS PSF
J3P
JAR
A
SCSI CTRL
320 SCSI Channel B
2-25
Chapter 2: Installation

Watch Dog

Jumper Settings (JWD)
Jumper Setting Defi nition
Pins 1-2 Reset
(*default)
Pins 2-3 NMI
Open Disabled
A. Clear CMOS
8-pin PWR
B. Watch Dog Enable