2 AIMB-762 Startup Manual
The board has a number of jumpers that allow you to
configure your system to suit your application. The
table below lists the function of each of the jumpers
and connectors.
Jumpers and Connectors
Other Connectors
Label
Function
JP1
COM2 RS 232/422/485 Mode Selector
CN1
Primary IDE connector
CN3
FDD connector, Supports 360 KB / 1.2 MB /
720 KB / 1.44 MB FDD x 2
CN4
Parallel port, Parallel port x 1, supports SPP/
EPP/ECP mode
CN6
USB port 4, 5
CN7
VGA connector
CN9
Serial port: COM1; RS-232 (D-sub 9-pin
connector)
CN10
Serial port: COM2; RS-232 (9-pin connec-
tor)
CN11
PS/2 keyboard and mouse connector
Cable length: 20 meters
CN12
External keyboard connector (6-pin)
CN13
Infrared connector
CN14
CPU FAN connector
CN15
System FAN connector 1
CN16
Power LED
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
CN29
SM bus connector
CN31
LAN1; USB ports 0, 1
CN32
LAN2; USB ports 2, 3
CN37
System FAN connector 2
CN55
Line Out, Mic IN connector
CN56
CD IN (Audio input from CD-ROM)
CN57
AUX IN connector
CN59
Front panel audio connector
CN62
8-pin Alarm Board Connector
CN63
USB ports 6, 7
CN64
Case Open
CN65
Front Panel LAN indicator connector
SA0
Serial ATA0
SA1
Serial ATA1
SA2
Serial ATA2
SA3
Serial ATA3
ATX1
ATX 12 V auxiliary power connector
(for CPU)
ATX3
24-pin ATX power connector
J1: CMOS clear function
Pins
Result
1-2
Keep CMOS data*
2-3
Clear CMOS data
JP1: COM2 RS 232/422/485 Mode Selector
Users can use JP1 to select among RS 232/422/485
modes for COM2 (CN10). The default setting is RS
232.
J2: Watchdog timer output option
Closed pins Result
1-2
IRQ11
2-3
System reset *
J12: ATX, AT mode selector
Closed Pins Result
1-2
AT Mode
2-3
ATX Mode
1 - 2 closed
IRQ11
2 - 3 closed
System Reset
1 - 2 closed
AT Mode
2 - 3 closed
ATX Mode
