Intel Socket 478 AIMB-744 - Manual (Page 20)

AIMB-744 User’s Manual 6
Table 1.2: Connectors
Label
Function
CN1 Primary IDE connector
CN2 Secondary IDE connector
CN3 Floppy drive connector
CN4 Parallel port
CN6 USB port 4, 5 (shared with CN32)
CN9 Serial port: COM1
CN10 Serial port connector: COM3
CN11 PS/2 keyboard and mouse connector
CN12 External keyboard connector
CN14 CPU FAN connector
CN15 System FAN connector 1
CN16 Power LED and Keyboard Lock
CN17 External speaker
CN18 Reset connector
CN19 HDD LED connector
CN21 ATX soft power switch (PS_ON)
CN22 HW Monitor Alarm
Close: Enable OBS Alarm
Open: Disable OBS Alarm
CN23 Serial port connector: COM4
CN29 SM BUS Connector
PIN1: SMB_DATA
PIN2: SMB_CLOCK
CN31 USB port 0, 1 & LAN1
CN32 USB port 2, 3 & LAN2
CN37 System FAN connector 2
CN38 Serial port: COM2
CN55 Line Out, Mic IN connector
CN56 CD IN (Audio input from CD-ROM)
CN57 AUX IN connector
CN59 FP AUDIO connector