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Chapter 3 Motherboard Connections
Watch Dog
JWD1 controls the Watch Dog function. Watch Dog is a monitor that can reboot the system
when a software application hangs. Jumping pins 1-2 will cause Watch Dog to reset the
system if an application hangs. Jumping pins 2-3 will generate a non-maskable interrupt
signal for the application that hangs. Watch Dog must also be enabled in BIOS. The default
setting is Reset.
Note: When Watch Dog is enabled, users need to write their own application software
to disable it.
Watch Dog
Jumper Settings
Jumper Setting Denition
Pins 1-2 Reset (Default)
Pins 2-3 NMI
Open Disabled
SMBus to PCI Slots
Jumpers JI
2
C1 and JI
2
C2 allow you to connect the System Management Bus (I
2
C) to the
PCI-E slots. (JI
2
C1 controls the clock and
JI
2
C2 controls the data).
SMBus to PCI Slots
Jumper Settings
JI
2
C1 Setting JI
2
C2 Setting Denition
JI
2
C1: Pins 1-2 JI
2
C2: Pins 1-2 Enabled
JI
2
C1: Pins 2-3 JI
2
C2: Pins 2-3 Disabled (Default)
Manufacturing Mode Select
Manufacturing Mode
Jumper Settings
Jumper Setting Denition
Pins 1-2 Normal (Default)
Pins 2-3 Manufacturing Mode