Tyan Computer TYAN S1668 Selection J28 & J29, Speaker Connector J43 Keylock Connector J44

I/O Selection: J28 & J29
	J28	J29
For COM 1 and 2	1-2	1-2	Default
For InfraRed	2-3	2-3

Speaker Connector: J43

Keylock Connector: J44

Pins 1 to 3 for power LED.

Pins 4 and 5 for Keylock

Pinout Assignments

1Speaker out

2Ground

3Ground

4+ 5V

Pinout Assignments

1Led Output

2No Connect

3Ground

4Keylock

5Ground

Turbo Switch: J47 ( Non-Turbo Mode Not Supported )

HDD LED: J46

Pinout Assignments

1	Cathode
2	Anode
3	Cathode
4	Anode

Pins 1 and 2 are for primary IDE channel.

Pins 3 and 4 are for secondary IDE channel.

S1668-ATX-001 http://www.tyan.com 9