SUPER MICRO Computer 1012G-MTF I2C to PCI-Express Slot, VGA Enable/Disable, LAN1/2 Enable/Disable

Chapter 5: Advanced Motherboard Setup

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

(JI2C1/JI2C2)

Jumper Setting Definition

Closed	Enabled
Open	Disabled

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.

LAN1/2 Enable/Disable

Change the setting of jumper JPL1 or JPL2 to enable or disable the LAN1 or LAN2 Ethernet port. See the table on the right for jumper settings. The default setting is enabled.

Onboard Speaker Enable/Disable

The JD1 header allows you to use either an external speaker or the internal (onboard) speaker. To use the internal onboard speaker, close pins 6 and 7 with a jumper. To use an external speaker, remove the jumper and connect the speaker wires to pins 4 (+5V) and 7 (control signal). See the table on the right for settings and the table associated with the Power LED/Keylock/ Speaker connection (previous section) for jumper settings.

VGA Enable/Disable

Jumper Settings (JPG1)

Jumper Setting Definition

Pins 1-2	Enabled
Pins 2-3	Disabled

LAN1/2 En/Disable Jumper

Settings (JPL1/JPL2)

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

Onboard Speaker Enable/Disable

Pin Definitions (JD1)

Pins	Definition
6 and 7	Jump for onboard speaker
4 and 7	Attach external speaker wires

Note: Pins 4-7 are used only for the onboard speaker.

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