Cmos Clear; Watch Dog - Supermicro X7DA3 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 connection. Always remove the AC power cord from the system before clear-
ing 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
JWD controls the Watch Dog function. Watch
Dog is a system monitor that can reboot the sys-
tem when a software application hangs. Close
Pins 1-2 to reset the system if an application
hangs. Close Pins 2-3 to generate a non-mask-
able interrupt signal for the application that
hangs. See the table on the right for jumper set-
tings. Watch Dog must also be enabled in the
BIOS.
Note: When enabled, the user needs to write
his/her own application software in order to dis-
able the Watch Dog Timer.
LAN1/2
CD2 CD1
Line-In/
Line-
JPAC
Out
Mic
SIM LP IPMI
PCI-Exp x16
PCI-33MHz
B
CPU
PSF
J17
Fan 1
J3P
JAR
A
SAS
Controller
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
8-pin PWR
JPW3
A. Clear CMOS
B. Watch Dog Enable