The SMBus provides access to the card's SMBus interface when supported by the
card. It is compatible with the Total Phase Aardvark host adapter [Ref
6] or Total Phase Beagle I2C Monitor protocol analyzer [Ref
7].
Note:
When using an external tool, exercising SMBus master function can overlap with
server BMC access and can hang the bus.
| Signal | Pin | Pin | Signal |
|---|---|---|---|
| SMBUS_SCL | 1 | 2 | GND |
| SMBUS_SDA | 3 | 4 | NC |
| NC | 5 | 6 | NC |
| NC | 7 | 8 | NC |
| NC | 9 | 10 | GND |