SUPER MICRO Computer X7SBL-LN1/LN2 - Manual (Page 42)

2-24
X7SBL-LN1/LN2 User’s Manual
Clear CMOS
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 system,
remove the AC power cord and then close pins 1 and 2 to clear CMOS.
A. Clear CMOS
B. Watch Dog Enable
Watch Dog Enable/Disable
JWD controls the Watch Dog function. 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 application hangs.
Close pins 2-3 to generate a non-maskable inter-
rupt signal for the application that hangs. See the
table on the right for jumper settings. Watch Dog
must also be enabled in the BIOS.
Note: When enabled, the user needs to
write his/her own application software to
disable the Watch Dog Timer.
Watch Dog
Jumper Settings (JWD)
Jumper Setting Defi nition
Pins 1-2 Reset
(*default)
Pins 2-3 NMI
Open Disabled
JBT1
B
A