User`s manual

SUPER P6DGS/P6DGE/P6DGU/P6SGU Manual
2-10
Table 2-13
ATX Serial Port Pin Definitions
Pin Number Definition
1 DCD
2 DSR
3 Serial In
4 RTS
5 Serial Out
Pin Number Definition
6 CTS
7 DTR
8 RI
9 Ground
10 NC
J20
J21
Table 2-14
CMOS Clear Pin Definitions
(JBT1)
Jumper
Position
1-2
2-3
Definition
Normal
CMOS Clear
Position
1-2
Position
2-3
Normal
CMOS Clear
Table 2-17
Fan Connector
Pin Definitions (JT1, JT2, JT3)
Pin
Number
1
2
3
Definition
Ground (black)
+12V (red)
Tachometer
* Caution: These fan connectors
are DC direct.
Pin
Number
1
2
3
4
Definition
+3V
NC
NC
Ground
Table 2-15
External Battery
Pin Definitions
(JBT2)
CMOS Clear
Refer to Table 2-14 for instructions
on how to clear the CMOS. For ATX
power supplies, you need to com-
pletely shut down the system
then use JBT1 to clear the CMOS.
Do not use the PW_ON connector
to clear the CMOS. A second way of
resetting the CMOS contents is by
pressing the <Ins> key, then turning
on the system power. Release the
key when the power comes on.
External Battery
ATX Serial Ports
ATX serial port COM1 is located
on J20 and serial port COM2 is
located on J21. See Table 2-13
for pin definitions.
Connect an external battery to JBT2.
Refer to Table 2-15 for pin defini-
tions.
Pin
Number
1
2
3
Definition
+5V Standby
Ground
Wake up
Table 2-16
Wake-on-LAN
Pin Definitions
(WOL)
Wake-on-LAN
The Wake-on-LAN connector is lo-
cated on WOL. Refer to Table 2-
16 for pin definitions.
Fan Connectors*
The thermal/overheat fan is lo-
cated on JT3. The CPU fans are
located on JT1 and JT2. Refer to
Table 2-17 for pin definitions.