Supermicro 656531, User Manual

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Chapter 4: Motherboard Connections
Watch Dog
Watch Dog (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 Watch Dog 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
ME Manufacturing Mode
Close pins 2-3 of jumper JPME2 to bypass SPI flash security and force the system to operate
in manufacturing mode. This allows the user to flash the system firmware from a host server
for system setting modifications. Refer to the table below for jumper settings. The default
setting is Normal.
Manufacturing Mode
Jumper Settings
Jumper Setting Definition
Pins 1-2 Normal
Pins 2-3 Manufacturing Mode