User's Manual
Chapter 5: Advanced Serverboard Setup
5-17
Wake-On-Ring
The Wake-On-Ring header is desig-
nated JWOR. This function allows 
your computer to receive and "wake-
up" by an incoming call to the modem 
when in suspend state. See the table 
on the right for pin defi nitions. You 
must have a WOR card and cable to 
use this feature. 
Wake-On-Ring
Pin Defi nitions 
(JWOR)
Pin# Defi nition 
1 Ground (Black)
2 Wake-up
Power SMB (I
2
C) Connector
The Power SMB (I
2
C) connector 
(PW4) is used to monitor power sup-
plies, fans and system temperatures.  
See the table on the right for pin 
defi nitions. 
PWR SMB (I
2
C)
Pin Defi nitions 
Pin# Defi nition 
1 Clock
2 Data
3 PWR Fail
4 Ground
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.
Note: This feature is only available when using 
Supermicro redundant power supplies.
Power Supply Fail
Pin Defi nitions (PW3) 
Pin# Defi nition 
1 PWR 1: Fail
2 PWR 2: Fail
3 PWR 3: Fail
4 Signal: Alarm Reset
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. 
Alarm Reset
Pin Defi nitions (JAR)
Pin# Defi nition 
1 Ground
2 +5V










