Abit SM5 User Manual page 15

Installing the Mainboard
PS/2 Mouse connector Watch the pin number and the orientation
his has a specific orientation. Connect the six-threads PS/2 Mouse cable provided
T
to the Mouse connector on the mainboard.
Model name
Pin number
1
2
3
4
5
6
The "PS/2 Mouse Port" is different from COM1 or COM2 serial
Computer
knowledge
ports to which you can also connect a Mouse. This mainboard
features an extra PS/2 Mouse port, so when you buy a mouse, be
sure that it is a PS/2 Mouse before connecting it to this port. But if
you cannot find any PS/2 Mouse, you can still use COM1 or
COM2 to connect a serial mouse to your computer.
Keyboard Connector
This has an orientation pin. Connect your keyboard connector to connector on the
mainboard.
Model name
Pin number
1
2
3
4
5
SM5 (J4)
Name of the signal or signification
Mouse data
No connection
Ground
+5VDC
Ground
Mouse clock
SM5 (J2)
Name of the signal or signification
Keyboard clock
Keyboard data
No connection
Ground
+5VDC
SM5-A (JP3)
SM5-A (JP2)
2-7