2-15
Hardware Setup
SSI 5-Pin Power Connector: CN14
This connector provides power supply for the System Management Bus (SMB).
PIN
SIGNAL
1
SMB clock
2
SMB data
3
PS alert
4
GND
5
3.3RS
Pin Definition
PIN
SIGNAL
1
SMBUS_SDA
2
GND
3
SMBUS_SCL
4
NC
CN28 Pin Definition
CN15 Pin Definition
PIN
SIGNAL
1
SMBCLK
2
SMBDATA
3
NC
4
GND
5
VCC3
4-pin I
2
C Bus Connector: CN28
5-pin I
2
C Bus Connector: CN15
The mainboard provides I2C (also known as I
2
C) Bus connectors for users to
connect to System Management Bus (SMBus) interfaces.
CN14
1
1
CN28
CN15
1