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.
PWR LED Connector
Pin Definitions (JD1)
Pin# Defi nition
1+Vcc
2
3
Speaker Connector
Pin Definitions (JD1)
Pin# Defi nition
4Red wire, Speaker data
5No connection
6Buzzer signal
7 Speaker data
JLAN1/2 (Ethernet Ports)
Two Gigabit Ethernet ports (desig- nated JLAN1 and JLAN2) are located beside the VGA port. These ports accept RJ45 type cables.
IPMB Header
The Intelligent Platform Management Bus (IPMB) header is located at J22. Connect the appropriate cable here to utilize IPMB on your system. See the table on the right for pin defi nitions.
SMB Power (I2C)
The header at J24 is for SMB, which may be used to monitor the status of the power supply. See the table on the right for pin defi nitions.
IPMB
Pin Definitions (J22)
Pin# Defi nition
1Data
2Ground
3Clock
4 N/A
SMB Power (I2C)
Pin Definitions (J24)
Pin# Defi nition
1Clock
2SMB Data
3N/A
4N/A
5 N/A
