SUPER MICRO Computer S120T, SERIES3800 user manual LAN1/2 Enable/Disable, I2C Bus to PCI-X/ Slots

SERIES3800/S120T (7045A-C3/7045A-CT) User's Manual

LAN1/2 Enable/Disable

Change the setting of jumper JPL1 and JPL2 to enable or disable the LAN1 and LAN2 Ethernets port, respectively. See the table on the right for jumper set- tings. The default setting is enabled.

I2C Bus to PCI-X/ Slots

Jumpers JI2C1 and JI2C2 allow you to connect the System Management Bus (I2C) to the PCI-X slots. The default setting is Disabled. Both jumpers must be set to the same setting See the table on the right for jumper settings.

I2C Bus to PCI-Exp. Slots

Jumpers JI2C3 and JI2C4 allow you to connect the System Management Bus (I2C) to the PCI-E slots. The default setting is Disabled. Both jumpers must be set to the same setting See the table on the right for jumper settings.

Watch Dog Enable/Disable

JWD controls the Watch Dog function. Watch Dog is a system monitor that can reboot the system when a software application hangs. Jumping pins 1-2 will cause WD to reset the system if an application hangs. Jumping pins 2-3 will generate a non-maskable interrupt signal for the application that hangs. See the table on the right for jumper settings. Watch Dog must also be en- abled in BIOS.

Note: When enabled, the user needs to write their own application software in order to disable the Watch Dog Timer.

LAN1/2 Enable/Disable

Jumper Settings (JPL1)

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

I2C to PCI-X Slots

Jumper Settings (JI2C1/JI2C2)

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

I2C to PCI-E Slots

Jumper Settings (JI2C3/JI2C4)

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

Watch Dog

Jumper Settings (JWD)

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

5-22