
IMBA-C604EN ATX Motherboard
3.2.22 S MBu s Connector
CN Label: SMBUS_1
CN Type:
4-pin wafer
CN Location: See Figure 3-23
CN Pinouts: See Table 3-20
The SMBus (System Management Bus) connector provides low-speed system
management communications.
Figure 3-23: SMBus Connector Location
Pin Description
1 +5V
2 SMB_HOST_3V3_CLK
3 SMB_HOST_3V3_DATA
4 GND
Table 3-20: SMBus Connector Pinouts
3.2.23 SPI ROM Connector
CN Label: J SPI1
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