SUPER MICRO Computer SERIES3800 ATX PS/2 Keyboard and PS/2 Mouse Ports, Power SMB I2C Connector

Models: S120T SERIES3800

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Chapter 5: Advanced Serverboard Setup

ATX PS/2 Keyboard and PS/2 Mouse Ports

The ATX PS/2 keyboard and the PS/2 mouse are located beside the USB0/1 ports. The mouse port is above the keyboard port. See the table on the right for pin definitions.

Power SMB (I2C) Connector

The power SMB (I2C) connector is used to monitor the status of the power supply, fan and system tem- perature. See the table on the right for pin definitions.

PS/2 Keyboard and

Mouse Port Pin

Definitions

Pin# Definition

1Data

2NC

3Ground

4VCC

5Clock

6NC

PWR SMB Header

Pin Definitions (J6)

Pin# Definition

1Clock

2Data

3PWR Fail (Input from PS to MB)

4Ground

5+3.3V

Backpanel Power SMB (I2C) Connector

The power SMB (I2C) connector is used to monitor the status of the power supply and the temperature of the backplane. See the table on the right for pin definitions.

Backpanel PWR SMB Connector

Pin Definitions (J5)

Pin# Definition

1SMBDAT_ICH_EXIT

2Ground

3SMBCLK_ICH_EXIT

4NC

SAS Power SMB (I2C) Connector

The SAS power SMB (I2C) connec- tor is used to monitor the status of the power supply system manage- ment bus for the SAS ports. See the table on the right for pin definitions (X7DCA-i only).

SAS PWR SMB Connector

Pin Definitions (JP3)

Pin# Definition

1TWSI_SDA

2Ground

3TWSI_SCK

5-19

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SUPER MICRO Computer SERIES3800, S120T user manual ATX PS/2 Keyboard and PS/2 Mouse Ports, Power SMB I2C Connector