User`s guide

MegaRAC G3 User’s Guide

Step 4 Plug in the MegaRAC G3 Card into the Host System and Attach

Internal Cables, Continued

J9 MegaRAC Feature Connector

This feature connector is primarily used for operating the host system’s motherboard

power and reset switch. It can also be used to gather I2C bus information from the

motherboard.

Pin Description Pin Description

1 Not Connected 11 Reset_Host #

2 I2C Clock 12 Ground

3 Not Connected 13 Ground

4 Not Connected 14 Not Connected

5 Power_Off # 15 Not Connected

6 I2C Data 16 Ground

7 Not Connected 17 Not Connected

8 Not Connected 18 Not Connected

9 Not Connected 19 Not Connected

10 Not Connected 20 Ground

Note: JP13 and JP14 can be used in place of the MegaRAC Feature Cable to gather I2C bus

information from the motherboard.

Note: JP4 and JP5 can be used in place of the MegaRAC Feature Cable to power on, power off,

and power cycle the motherboard.

Note: JP7 and JP8 can be used in place of the MegaRAC Feature Cable to reset the

motherboard.

Note: Only the OEM version can utilize the hardware health monitoring capabilities of

MegaRAC G3 card. The hardware health monitoring function requires an OEM specific

cable and Sensor Definition Kit (SDK/SDR) file and Soft Processor (SP) file.

Note: IPMI support is an OEM version feature.

Note: This cable is an optional component and must be custom made for your specific

configuration.

JP2 Serial Port Connector

You can connect an external 9 pin serial port connector to this header. This header is

primarily used to text redirect over the serial port.

JP3 Service Connector

This jumper is used exclusively for servicing the MegaRAC G3 card. JP3 is not described

in this document.

Cont’d