I2C To Pci-Express Slot; Watch Dog Enable/Disable; Lan1/2 Enable/Disable; Vga Enable/Disable - Supermicro H8DGU User Manual

I2C to PCI-Express Slot

2 2
JI C1/JI C2 allows you to enable the
2
I C 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.

Watch 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 program
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.

LAN1/2 Enable/Disable

Change the setting of jumper JPL1 to
enable or disable the LAN1 and LAN2
Ethernet ports. See the table on the
right for jumper settings. The default
setting is enabled.

VGA Enable/Disable

JPG1 allows you to enable or disable
the VGA port. The default position is on
pins 1 and 2 to enable VGA. See the
table on the right for jumper settings.
I2C to PCI-Express Slot
Jumper Settings
(JI2C1/JI2C2)
Jumper Setting Defi nition
Closed
Open
Jumper Settings (JWD)
Jumper Setting
Pins 1-2
Pins 2-3
Open
Note: When Watch Dog is enabled, the user must write
their own application software to disable the Watch Dog
Timer.
LAN1/2 En/Disable
Jumper Settings (JPL1)
Jumper Setting
Pins 1-2
Pins 2-3
VGA Enable/Disable
Jumper Settings (JPG1)
Jumper Setting
Pins 1-2
Pins 2-3
2-21
Chapter 2: Installation
Enabled
Disabled
Watch Dog
Defi nition
Reset
NMI
Disabled
Defi nition
Enabled
Disabled
Defi nition
Enabled
Disabled