positive and should be connected to the +12V; the black wire is Ground
and should be connected to GND. If the mainboard has a System
Hardware Monitor chipset on-board, you must use a specially designed fan
with speed sensor to take advantage of the CPU fan control.
GND
+12V
Sensor
Chassis Intrusion Connector: JCI1
This connector connects to the chassis intrusion switch cable. If the
chassis is opened, the chassis intrusion mechanism will be activated. The
system will record this status and show a warning message on the screen.
To clear the warning, you must enter the BIOS utility and clear the record.
CINTRU
GND
2
1
IEEE1394 Connector: J1394_1
(optional)
This connector allows you to connect the IEEE1394
device via an optional IEEE1394 bracket.
GND(10)
(2)TPA-
GND
TPB-
Cable power
(1)TPA+
GND
TPB+
Cable power
Key,no pin(9)
S/PDIF-Out Connector: SPDOUT1
This connector is used to connect S/PDIF (Sony & Philips Digital
Interconnect Format) interface for digital audio transmission.
GND
VCC
SPDIF
CD-In Connector: JCD1
This connector is provided for external audio input.
GND
L
R
JFP2
Power
LED
Speaker
2
8
1
7
Front Panel Connectors: JFP1,
JFP2
These connectors are for electrical connection to the
front panel switches and LEDs. The JFP1 is compliant
with Intel
®
Front Panel I/O Connectivity Design Guide.
JFP1
HDD
LED
Reset
Switch
Power
Switch
Power
LED
1
9
10
2
+
+
+-
-
-
Serial Port Connector: JCOM1
This connector is a 16550A high speed communication
port that sends/receives 16 bytes FIFOs. You can attach
a serial device.
(10)Key,no pin
SIN(2)
DTR
DSR
CTS
DCD(1)
SOUT
GND
RTS
(9)RI
Clear CMOS Jumper: JBAT1
There is a CMOS RAM onboard that has a power supply
from an external battery to keep the data of system
configuration. With the CMOS RAM, the system can
automatically boot OS every time it is turned on. If you want
to clear the system configuration, set the jumper to clear
data.
Keep Data
Clear Data
2
2
2
3
3
3
1
1
1
7
