TYAN S1668 User Manual page 9

I/O Selection: J28 & J29
Speaker Connector: J43
Keylock Connector: J44
Pins 1 to 3 for power LED.
Pins 4 and 5 for Keylock
Turbo Switch: J47 ( Non-Turbo Mode Not Supported )
HDD LED: J46
S1668-ATX-001 http://www.tyan.com
For COM 1 and 2
For InfraRed
Pins 1 and 2 are for primary IDE channel.
Pins 3 and 4 are for secondary IDE channel.
J28
1-2
2-3
Pinout Assignments
1 Speaker out
2 Ground
3 Ground
4 + 5V
Pinout Assignments
1 Led Output
2 No Connect
3 Ground
4 Keylock
5 Ground
Pinout Assignments
1 Cathode
2 Anode
3 Cathode
4 Anode
9
J29
1-2 Default
2-3