User`s manual

Chapter 2: Installation
2-13
Power LED/Speaker
On JD1, pins 1, 2, and 3 are for the
power LED and pins 4 through 7 are
for the speaker. See the tables on the
right for pin defi nitions.
Note: The speaker connector pins are
for use with an external speaker. If
you wish to use the onboard speaker,
you should close pins 6 and 7 with a
jumper.
Speaker Connector
Pin Defi nitions (JD1)
Pin# Defi nition
4 Red wire, Speaker data
5 No connection
6 Buzzer signal
7 Speaker data
PWR LED Connector
Pin Defi nitions (JD1)
Pin# Defi nition
1 +Vcc
2 -Vcc
3 -Vcc
SMBus Header
The System Management Bus header
is located at JSMB1. Connect the ap-
propriate cable here to utilize SMB on
your system. See the table on the right
for pin defi nitions.
SMBus
Pin Defi nitions (JSMB1)
Pin# Defi nition
1 Data
2 Ground
3Clock
4N/A
SMBus Power (I
2
C) Header
The JPI
2
C header is for the SMB
power connector, which may be used
to monitor the status of the power sup-
ply. See the table on the right for pin
defi nitions.
SMB Power (I
2
C)
Pin Defi nitions (JPI
2
C)
Pin# Defi nition
1Clock
2 SMB Data
3N/A
4N/A
5N/A
Overheat LED
Connect an LED to the JOH1 header
to provide warning of a chassis over-
heating condition. See the table on the
right for pin defi nitions.
Overheat LED
Pin Defi nitions (JOH1)
Pin# Defi nition
1+5V
2 OH Active