IEI Integration IMBA-Q770 - Manual (Page 51)

IMBA-Q770 ATX Motherboard
Page 36
Pin Description Pin Description
1 -NDCD1 6 -NCTS1
2 -NDSR1 7 -NDTR1
3 NSIN1 8 -XRI1
4 -NRTS1 9 GND
5 NSOUT1 10 GND
Table 3-17: RS-232 Serial Port Connector Pinouts
3.2.21 SMBus Connector
CN Label: SMBUS_1
CN Type: 4-pin wafer
CN Location: See Figure 3-22
CN Pinouts: See Table 3-18
The SMBus (System Management Bus) connector provides low-speed system
management communications.
Figure 3-22: SMBus Connector Location