The system LED status indicators show the current somputer status in different colors as listed in the table below:
LED indicator color
LED indicator meaning
Enough battery power remains for operation.
The battery pack needs to be charged
The battery pack is being charged.
The computer is in standby mode
The computer is entering or resuming from hibernation mode.
Drive in use
Data is being read from or written to the hard disk, floppy drive, or data is being read from the CD-ROM drive. Do not enter standby mode or power off the computer when this indicator is on.
The numeric keypad on the keyboard is enabled. You enable or disable the keypad by pressing and holding the Shift key, and pressing the NumLk key. For details, see Numeric Keypad on page 14 of the User's Reference.
Caps Lock mode is enabled. All alphabetic characters (A - Z) are entered in capital letters without the Shift key being pressed. You enable or disable the Caps Lock mode by pressing the Caps Lock key.
Scroll Lock mode is enabled. The Arrow keys can be used as screen-scroll function keys. The cursor cannot be moved with the Arrow keys. Not all application programs support this function. You enable or disable Scroll Lock mode by pressing the ScrLk key.
The computer is operational. This indicator is on when the computer is on.