IEI Integration PCIE-H610 - Manual (Page 47)

PCIE-H610 PICMG 1.3 CPU Card
Page 32
3.2.17 SMBus Connector
CN Label: SMBUS_1
CN Type: 4-pin wafer
CN Location: See Figure 3-18
CN Pinouts: See Table 3-19
The SMBus (System Management Bus) connector provides low-speed system
management communications.
Figure 3-18: SMBus Connector Location
Pin Description
1 +5VS
2 SMB_CLK
3 SMB_DATA
4 GND
Table 3-19: SMBus Connector Pinouts
3.2.18 SPI ROM Connector
CN Label: JSPI1
CN Type: 8-pin header
CN Location: See Figure 3-19
CN Pinouts: See Table 3-20
The SPI connector is used to flash the BIOS.