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Chapter 3
ATX Power Connector(ATX1, ATX2): These 20-pin
M14
and 4-pin connectors are for connecting ATX power
supply plugs. Find the proper orientation when
inserting the plugs, for the supply plugs are designed
to fit these connectors in only one orientation.
DIMM Socket: The 200-pin DDR2 SO-DIMM is for
M15
connecting the DDR2 800/667 memory. The system
can support up to 8 GB in maximum.
SATA 1 and 2 Connectors(J3, J4): It is for connecting
M16
a 2.5'' SATA harddisk to be served as your system's
storage. The system can support up to 2 disks in
maximum.
Clear CMOS jumper (J19): It is for clearing the CMOS
M17
memory and system setup parameters by erasing
the data stored in the CMOS RAM such as the system
passwords.
Pin No.
--
2 1
1-2
Serial Interface Connectors(J13, COM2): It is for
M18
connecting the RS-232 serial port module cable.
Function
Data Set
Request to
Ready
Send
PIN NO.
2
4
2
4
6
8 10
1
3
5 7 9
PIN NO.
1
3
Function
Data Carrier
Received
Detected
Data
CPU Socket: The LGA 775 socket is for connecting the
M19
CPU.
CPU Fan Connectors(CON1/CON2/CON3): The 4-pin
M20
connector is for connecting the CPU fan.
System Fan Connector(CON5): The 4-pin connector is
M21
for connecting the system fan.
Pin No.
1
4 3 2 1
2
3
4
Network Application Platforms
Function
Normal (Default)
Clear CMOS
Clear to
Ring Indicator
Signal
Send
Ground
6
8
10
5
7
9
Transmitted
Data Terminal
Signal
Data
Ready
Ground
Function
GND
+12VDC
Sense
Control
Motherboard Information
LPC I/O bus (Port 80) (LPC1): It is a proprietary
M22
connector for connecting a checkpoint device to
output checkpoints throughout bootblock and
Power-On Self Test (POST) to indicate the task the
system is currently executing.
Function
AD1
AD0
PIN NO.
2
4
2
4
6
1
3
5 7 9
PIN NO.
1
3
Function
CLK
PLTRST#
VCC
GND
GND
6
8
10
8 10
5
7
9
FRAME#
AD3
AD2
11
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