Chapter 5: Advanced Serverboard Setup
Wake-On-Ring
The
Power SMB (I2C) Connector
The Power SMB (I2C) connector (PW4) is used to monitor power sup- plies, fans and system temperatures. See the table on the right for pin defi nitions.
Pin Definitions
(JWOR)
Pin# Defi nition
1Ground (Black)
2
PWR SMB (I2C)
Pin Definitions
Pin# Defi nition
1Clock
2Data
3PWR Fail
4Ground
5+3.3V
Power Supply Fail
Connect a cable from your power sup- ply to the Power Supply Fail header (PW3) to provide a warning of power supply failure. This warning signal is passed through the PWR_LED pin to indicate a power failure. See the table on the right for pin defi nitions.
Alarm Reset (JAR)
The system will notify you in the event of a power supply failure. This feature assumes that Supermicro redundant power supply units are installed in the chassis. Connect a microswitch to the JAR header to disable the power supply fail alarm.
Power Supply Fail
Pin Definitions (PW3)
Pin# Defi nition
1PWR 1: Fail
2PWR 2: Fail
3 PWR 3: Fail
4Signal: Alarm Reset
Note: This feature is only available when using Supermicro redundant power supplies.
Alarm Reset
Pin Definitions (JAR)
Pin# | Defi nition |
1Ground
2 +5V