Datasheet

Chapter 5: Advanced Serverboard Setup
5-17
Power SMB (I
2
C) Connector
Power SMB (I
2
C) connector, located
at J13, monitors the status of the
power supply, fan and system tem-
perature. See the table on the right
for pin defi nitions.
PWR SMB Header
Pin Defi nitions (J13)
Pin# Defi nition
1 Clock
2 Data
3 PWR Fail (Input from PS to MB)
4 Ground
5 +3.3V
Alarm Reset
If three power supplies are installed,
the system can notify you when any of
the three power modules fail. Connect
JAR to a micro-switch to enable you
to turn off the alarm that is activated
when a power module fails. See the
table on the right for pin defi nitions.
Alarm Reset Header
Pin Defi nitions (JAR)
Pin Setting Defi nition
Pin 1 Ground
Pin 2 +5V
Overheat LED/Fan Fail (JOH1)
The JOH1 header is used to connect
an LED to provide warning of chassis
overheating. This LED will blink to in-
dicate a fan failure. Refer to the table
on right for pin defi nitions.
Overheat LED
Pin Defi nitions (JOH1)
Pin# Defi nition
1 5vDC
2 OH Active
OH/Fan Fail LED
States
State Message
Solid Overheat
Blinking Fan Fail
Compact Flash Card PWR
Connector
A Compact Flash Card Power Con-
nector is located at JWF1. For the
Compact Flash Card to work properly,
you will need to enable with JCF1 and
connect a Compact Flash Card power
cable to JWF1 fi rst.
Compact Flash Card PWR
Connector (JWF1)
Jumper Defi nition
On Compact Flash
Power On
Off Compact Flash
Power Off