2 AIMB-764 Startup Manual
The board has a number of jumpers that allow you to con-
figure your system to suit your application. The table
below lists the function of each of the jumpers and con-
nectors.
IRQ11 1-2 Closed
System Reset 2-3 closed
AT Mode 1-2 closed
ATX Mode 2-3 closed
Jumpers and Connectors
Connector / Jumper List
JWDT1
Watchdog Reset
IDE1
Primary IDE connector (one channel)
FDD1
FDD connector
LPT1
Parallel port, Parallel port x 1, supports SPP/
EPP/ECP mode.
LAN1_USB12 LAN1 / USB port 1, 2
LAN2_USB34 LAN2 / USB port 3, 4
VGA1
VGA connector
COM1
Serial port: COM1; RS-232
COM2
Serial port: COM2; RS-232 (9-pin connector)
JSETCOM2 COM2 RS-232/422/485 Jumper Setting
KBMS1
PS/2 Keyboard and Mouse connector
KBMS2
External Keyboard connector (6-pin)
JIR1
Infrared connector
JFP3(Key-
board Lock
and Power
LED)
Power LED
JFP2
Suspend: Fast flash (ATX/ AT)
System On: ON (ATX/ AT)
System Off: OFF (AT)
System Off: Slow flash (ATX)
External speaker / SATA HDD LED connector /
SM Bus connector
JFP1
Power Switch / Reset connector
JCASE1
Case Open
PSON1
AT(1-2) / ATX(2-3)
VOLT11
Voltage Display
JOBS1
HW monitor
CPUFAN1
Close: Enable OBS Alarm
Open: Disable OBS Alarm
CPU FAN connector (4-pin)
SYSFAN1
System FAN connector (4-pin)
CHAFAN1
Chassis FAN connector (4-pin)
LANLED1
LAN1/2 LED extension connector
AUDIO1
Audio connector
CDIN1
CD_IN Connector
HD1
HD Audio Front Panel Pin Header
USB56
USB port 5, 6
USB78
USB port 7, 8
USB910
USB port 9, 10
SA1
Serial ATA1
SA2
Serial ATA2
SA3
Serial ATA3
SA4
Serial ATA4
SA5
Serial ATA5
ATX1
ATX 12V Auxiliary power connector (for CPU)
ATX2
ATX 24 Pin Main power connector (for System)
Jumpers and Connectors
J1: CMOS clear function
Pins
Result
1-2
Keep CMOS data*
2-3
Clear CMOS data
Keep CMOS data
Clear CMOS data
JP1: CMO2 RS-232/422/485 Mode Selector
Users can use JP1 to select RS-232, RS-422 or RS-485 mode
for COM2. 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 selecor
Closed Pins Result
1-2
AT Mode
2-3
ATX Mode
