IEI Integration IMBA-C604EP - Manual (Page 51)

IMBA-C604EP ATX Server Board
Page 35
Figure 3-20: SMBus Connector Location
Pin Description
1 +5V_DUAL
2 SMBCLK
3 SMBDATA
4 GND
Table 3-18: SMBus Connector Pinouts
3.2.20 SPI ROM Connector
CN Label: JSPI1
CN Type: 6-pin wafer
CN Location: See Figure 3-21
CN Pinouts: See Table 3-19
The SPI connector is used to flash the BIOS.