45
Chapter 3: Motherboard Connections
Standby Power Header (JSTBY1)
The Standby Power header is located at JSTBY1 on the motherboard.
Standby Power
Pin Definition
Pins
Definition
1
+5V Standby
2
Ground
3
Wake-up
IPMB System Management Bus Header (JIPMB1)
A System Management Bus header for IPMI 2.0 is located at JIPMB1. Connect the appropriate
cable here to use the IPMB I
2
C connection on your system.
IPMB Header
Pin Definitions
Pin#
Definition
1
Data
2
Ground
3
Clock
4
No Connection
Speaker (JD1)
If you wish to use an external speaker, attach an external speaker to pins 6~7. See the table
below for pin definitions.
Speaker Connector
Pin Definitions
Pin Setting
Definition
Pins 1~2
Power LED
Pins 6~7
External Speaker
Power SMB Header
Pin Definitions
Pin#
Definition
1
Clock
2
Data
3
PWR Fail
4
Ground
5
+3.3V
Power SMB Header (JPI2C1)
Power System Management Bus (I2C) header monitors power supply, fan and system
temperatures. See the table below for pin definitions.
