J2: Atx Power Supply Connector; J1, J4: At Keyboard And Ps/2 Mouse Connectors - Intel AI5VG User Manual

Chapter 5 Installation

5.3 J2: ATX Power Supply Connector

J2 is a 20-pin ATX power supply connector. Refer to the following table
for the pin out assignments.
11 1
Signal Name
3.3V
-12V
Ground
PS-ON
Ground
Ground
Ground
-5V
+5V
+5V
20 10

5.4 J1, J4: AT Keyboard and PS/2 Mouse Connectors

J1: AT Keyboard Connector
J4: PS/2 Mouse Connector
1 Pin #
1
2
3
4
5
5
22 AI5VG Pentium VP3 Baby AT Motherboard User's Manual
Pin # Pin #
11 1
12 2
13 3
14 4
15 5
16 6
17 7
18 8
19 9
20 10
Pin # Signal Name
1 Keyboard clock
2 Keyboard data
3 N.C.
4 GND
5 5V
Signal Name
Mouse data
N.C.
GND
5V
Mouse Clock
Signal Name
3.3V
3.3V
Ground
+5V
Ground
+5V
Ground
Power good
5VSB
+12V