Intel AI5VG 5.3 J2: ATX Power Supply Connector, 5.4 J1, J4: AT Keyboard and PS/2 Mouse Connectors

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		Pin #		Pin #	Signal Name
		3.3V	11		1		3.3V
		-12V	12		2		3.3V
		Ground	13		3		Ground
		PS-ON	14		4		+5V
		Ground	15		5		Ground
		Ground	16		6		+5V
		Ground	17		7		Ground
		-5V	18		8		Power good
		+5V	19		9		5VSB
20	10	+5V	20		10		+12V

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

J1: AT Keyboard Connector

Pin #	Signal Name
1	Keyboard clock
2	Keyboard data
3	N.C.
4	GND
5	5V

J4: PS/2 Mouse Connector

1	Pin #	Signal Name
	1	Mouse data
	2	N.C.
	3	GND
5	4	5V
	5	Mouse Clock

22 AI5VG Pentium VP3 Baby AT Motherboard User’s Manual