CMOS Clear
JBT1 is used to clear the CMOS. Instead of pins, this "jumper" consists of contact
pads to prevent the accidental clearing of the CMOS. To clear the 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 the CMOS.
Note 1. For an ATX power supply, you must completely shut down the sys-
tem, remove the AC power cord, and then short JBT1 to clear the CMOS.
Note 2. Be sure to remove the onboard CMOS Battery before you short
JBT1 to clear the CMOS.
Note 3. Clearing the CMOS will also clear any passwords.
A
B
A. Clear CMOS
B. Watch Dog Enable
Watch Dog Enable/Disable
Watch Dog (JWD1) is a system monitor that can
reset the system 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-maskable interrupt signal for the applica-
tion that hangs. Refer to the table on the right
for jumper settings. Watch Dog must also be
enabled in the BIOS.
Watch Dog
Jumper Settings
Jumper Setting Denition
Pins 1-2 Reset (default)
Pins 2-3 NMI
Open Disabled
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