Chapter 5 Installation
22
AI5TT Pentium Baby AT Motherboard User
’
s Manual
5.3 J3: AT Power Connector
When using an AT compatible power supply, plug both of the power
supply connectors into J3. Make sure the power supply connectors are
connected in the right orientation. The power supply connectors are
connected in the right orientation if the black wires of each power cable
are ADJACENT to each other. That is, black wires of each connector
should be aligned in the center of the J3 power supply connector.
J3 Pin #
Description
Wire Color
1
Θ
Power Good
Orange
2
●
+5V
Red
3
●
+12V
Yellow
4
●
-12V
Blue
5
●
Ground
Black
6
●
Ground
Black
7
Θ
Ground
Black
8
●
Ground
Black
9
●
-5V
White
10
●
+5V
Red
11
●
+5V
Red
12
●
+5V
Red
5.4 J5: Infrared Connector
This connector is used for an IrDA connector for wireless
communication with infrared devices.
Pin #
Signal Name
1 +5V
2 No
connect
3 Ir
RX
4 Ground
+5V IRRX IRTX
N.C. GND
5 Ir
TX
