What are the LED status inidcators (lights) on the LCD? - ThinkPad T40, T40p, T41, T41p, T42, T42p, T43, T43p
The following table shows what the LED status indicators are for and what the different colors or blinking of the lights mean.
Index number
LED indicator
LED indicator color
LED indicator meaning
1
Ultrabay Slim status
Green
An Ultrabay Slim device is installed and in use.
Blinking green
An Ultrabay Slim device is in the process of being detached. Note: If you are using Microsoft Windows 2000, the Ultrabay Slim status indicator does not blink while an Ultrabay Slim device is being detached. Instead, a message box pops up when the process is completed; then the indicator turns off.
Stop blinking and turn off
An Ultrabay Slim device is ready to be attached or detached.
2
Standby status
Green
The computer is in standby mode.
Blinking green
The computer is entering standby mode or hibernation mode, or is resuming normal operation.
3
Battery status
Green
The battery is in use and has enough power. The ac adapter has charged the battery completely.
Blinking green
The battery is being charged, but still has enough power to operate. (At regular intervals, the indicator light turns off briefly.)
Orange
The battery is being charged, but the battery power is still low.
Blinking orange
The battery needs to be charged. When the indicator starts blinking orange, the computer beeps three times.
4
Power on
Green
The computer is on and ready to use. This indicator stays lit whenever the computer is on and is not in standby mode.
5
Drive in use
Green
Data is being read from or written to the hard-disk drive, the diskette drive, or the drive in the Ultrabay Slim device. When this indicator is on, do not put the computer into standby mode or turn off the computer. Note: Do not move the system while the green drive-in-use light is on. Sudden physical shock could cause drive errors.
6
Caps lock
Green
Caps Lock mode is enabled. To enable or disable Caps Lock mode, press the Caps Lock key.
7
Num lock
Green
The numeric keypad on the keyboard is enabled. To enable or disable the keypad, press and hold the Shift key, and press the NumLk (ScrLk) key.
8
Bluetooth status
Green
Bluetooth is operational. This indicator is on when the Bluetooth is on and not in suspend mode.
9
Wireless status
Green
The wireless feature (the IEEE 802.11 standard) is on, and the radio link is ready for use.
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