Chapter 2
HDD LED
HDD LED shows the activity of a hard disk drive connected to the IDE1 or IDE2 connector. Avoid turning the power off while the HDD is working. You can connect the HDD LED from the system case to this pin.
Speaker (F_P1 only)
Speaker from the system case is connected to this pin.
If
Short pin
Open pin
Keylock (F_P1 only)
Keylock allows you to disable the keyboard for security purpose. You can connect the keylock to this connector.