Instruction Manual

IMB-Q670 Micro-ATX Motherboard
Page 35
PIN NO. DESCRIPTION PIN NO. DESCRIPTION
27 NDTR5/9# 28 NRI5/9#
29 GND 30 GND
31 NDCD6/10 32 NDSR6/10#
33 NRXD6/10# 34 NRTS6/10#
35 NTXD6/10 36 NCTS6/10#
37 NDTR6/10# 38 NRI6/10#
39 GND 40 GND
Table 3-18: Serial Port Connector Pinouts
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.