SUPER MICRO Computer H8DII+-F, H8DI3+-F I2C to PCI-Express Slot, Watch Dog Enable/Disable

H8DI3+/I+(-F) Serverboard User's Manual

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.

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.

PCI-X Slot Frequency Selection

JPX1A (PCI-X Slot 1) and JPX1B (PCI-X Slot 2) are used for specifying the frequency setting for cards installed in the appropriate PCI-X slot. This jumper allows you to specify a slower speed for legacy cards installed in one of these slots. Leaving the jumper open allows automatic use of high speed cards. Closing the pins specifies the use of slower speed PCI or PCI-X cards.

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

(JPI2C1/JPI2C2)

Jumper Setting Definition

Closed	Enabled
Open	Disabled

Watch Dog

Jumper Settings (JWD)

Jumper Setting	Definition
Pins 1-2	Reset
Pins 2-3	NMI
Open	Disabled

Note: when Watch Dog is enabled, the user must write their own application software to disable the Watch Dog Timer.

PCI-X Slot

Frequency Selection

Jumper Settings

(JPX1A/JPX1B)

Jumper Setting	Definition
Pins 1-2	PCI-X 66 Mhz
Pins 2-3	PCI 66 Mhz
Open	Auto

VGA Enable/Disable

Jumper Settings (JPG1)

Jumper Setting	Definition
Pins 1-2	Enabled
Pins 2-3	Disabled

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