Supermicro SuperServer 5019C-M4L User Manual page 53

ME Manufacturing Mode
Close pins 2-3 of jumper JPME2 to bypass SPI flash security and force the system to operate
in the manufacturing mode, which will allow the user to flash the system firmware from a host
server for system setting modifications. The default setting is Normal.
Watchdog Timer
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. The Watchdog must
also be enabled in the BIOS. The default setting is Reset.
Note: When Watch Dog is enabled, the user needs to write their own application software
to disable it.
VGA Enable/Disable
JPG1 allows you to enable or disable the VGA port, which is supported by the onboard BMC
controller. The default setting is Enabled.
LAN Port Enable
Change the setting of jumpers JPL1 – JPL4 for LAN1 – LAN4 to enable or disable the LAN
ports. The default setting is Enabled.
Manufacturing Mode
Jumper Settings
Jumper Setting Definition
Pins 1-2 Normal
Pins 2-3 Manufacturing Mode
Watchdog
Jumper Settings
Jumper Setting Definition
Pins 1-2 Reset
Pins 2-3 NMI
Open Disabled
VGA Enable/Disable
Jumper Settings
Jumper Setting Definition
Pins 1-2 Enabled
Pins 2-3 Disabled
LAN Port Enable/Disable
Jumper Settings
Jumper Setting Definition
Pins 1-2 Enabled
Pins 2-3 Disabled
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Chapter 4: Motherboard Connections