Chapter 5: Advanced Serverboard Setup
5-19Watch Dog Enable/Disable
JWD enables the Watch Dog function,
a system monitor that takes action
when a software application freezes
the system. Jumping pins 1-2 will
have WD reboot the system if a pro-
gram freezes. Jumping pins 2-3 will
generate a non-maskable interrupt for
the program that has frozen. See the
table on the right for jumper settings.
Watch Dog must also be enabled in
BIOS.
Note: when Watch Dog is enabled, the user must
write their own application software to disable the
Watch Dog Timer.
Watch Dog
Jumper Settings (JWD)
Jumper Setting Defi nition
Pins 1-2 Reset
Pins 2-3 NMI
Open Disabled
LAN1/LAN2 Enable/Disable
Change the setting of jumper JPL1 to
enable or disable the LAN1 port and
JPL2 to enable or disable the LAN2
port on the serverboard. See the table
on the right for jumper settings. The
default setting is enabled.
LAN1/2 Enable/Disable
Jumper Settings (JPL1/2)
Jumper Setting Defi nition
Pins 1-2 Enabled
Pins 2-3 Disabled
I2C to PCI-Express Slot
JI2C1/JI2C2 allows you to enable the
I2C bus to communicate with the PCI-
Express slot. For the jumpers to work
properly, please set both jumpers to the
same setting. If enabled, both jumpers
must be enabled. If disabled, both
jumpers must be disabled. See the
table on the right for jumper settings.
I2C to PCI-Express Slot
Jumper Settings (JPI2C1/JPI2C2)
Jumper Setting Defi nition
Closed Enabled
Open Disabled