Lenovo SL300 manual Status indicators, Indicator, Meaning

Status indicators

The system status indicators show the status of the computer, as follows:

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Table 8. Status indicators

Indicator	Meaning
Power on	The computer is on and ready to use. The power switch stays lit
	whenever the computer is on and is not lit when the computer is
	in sleep (standby) mode.
Device access	A hard disk drive is being used to read or write data. When this
	indicator is blinking, do not put the computer into sleep
	(standby) mode or turn it off.
	Note: Do not move the system while the green drive-in-use light
	is on. Sudden physical shock could cause drive errors.
Media Card	A card in the 7-in-1 Media Card Reader is being used to read and
Reader	write data. When this indicator is blinking, do not put the
	computer into sleep mode, remove the card from the slot, or turn
	off the computer.
Numeric lock	The numeric keypad on the keyboard is enabled. To enable or
	disable the keypad, press and hold the Shift key or Fn key, and
	press the NumLk (Delete) key.
CapsLock	CapsLock mode is enabled. You can enter all alphabetic
	characters (A-Z) in uppercase without pressing the Shift key. To
	enable or disable CapsLock mode, press and hold the Shift key,
	and press the CapsLock key.

52ThinkPad SL300 Hardware Maintenance Manual