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Chapter 4: Motherboard Connections
Watch Dog Time
Watchdog (JWD1) 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 interrupt (NMI) signal for the application that hangs. Refer to the table below
for jumper settings. The Watchdog must also be enabled in the BIOS.
Watch Dog
Jumper Settings
Jumper Setting
Definition
Pins 1-2
Reset
Pins 2-3
NMI
Open
Disabled
VGA Enable/Disable
Jumper JPG1 allows the user to enable the onboard VGA connector. The default setting is
pins 1-2 to enable the connection. Refer to the table below for jumper settings.
VGA Enable/Disable
Jumper Settings
Jumper Setting
Definition
Pins 1-2
Enabled
Pins 2-3
Disabled
LAN1/2 Enable/Disable
Jumper Settings
Jumper Setting
Definition
Pins 1-2
Enabled (Default)
Pins 2-3
Disabled
LAN1/LAN2 Enable/Disable
Use jumper JPL1 to enable or disable LAN port 1 and JPL2 to enable or disable LAN port 2.
LAN3/4 Enable/Disable
Jumper Settings
Jumper Setting
Definition
Pins 1-2
Enabled (Default)
Pins 2-3
Disabled
LAN3/LAN4 Enable/Disable
Use jumper JPTG1 to enable or disable LAN ports 3 and 4.
Front Panel Audio Enable
JPAC1 allows you to enable or disable the onboard audio support. The default position is on
pins 1 and 2 to enable onboard audio connections.Refer to the table below for jumper settings.
Front Panel Audio Enable
Jumper Settings
Jumper Setting
Definition
Pins 1-2
Enabled (Default)
Pins 2-3
Disabled
