Intel AI5VG User Manual page 31

Speaker: Pins 1 - 4
This connector provides an interface to a speaker for audio
tone generation. An 8-ohm speaker is recommended.
Power LED and Keylock: Pins 11 - 15
The power LED indicates the status of the main power
switch. The keylock switch, when closed, will disable the
keyboard function.
ATX Power ON Switch: Pins 7 and 17
This 2-pin connector is an "ATX Power Supply On/Off
Switch" on the motherboard that connects to the power
switch on the case. When pressed for more than 4 seconds,
the power switch will force the motherboard to power off.
When pressed for less than 4 seconds, it will force the
motherboard to enter the Suspend Mode (depending on
BIOS presettings).
Turbo LED Connector: Pins 8 and 18
There is no turbo/deturbo function on the motherboard. The
Turbo LED on the control panel will always be On when
attached to this connector.
AI5VG Pentium VP3 Baby AT Motherboard User's Manual
Chapter 5 Installation
J20 Pin # Signal Name
1 Speaker out
2 No connect
3 Ground
4 +5V
J20 Pin # Signal Name
11 Power LED
12 No connect
13 Ground
14 Keylock
15 Ground
J20 Pin # Signal Name
8 5V
18 Ground
27