IBM Thinkpad T40 Manual

Status indicators
The system status indicators show the status of the
computer, as follows:
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Product overview
ThinkPad T40 Series47 

Indicator Meaning

1Ultrabay
Slim statusGreen:
An Ultrabay Slim device is installed and in
use.
Blinking green:
An Ultrabay Slim device is in the process of
being detached.
Turn off:
An Ultrabay Slim device is ready to be
attached or detached.
Note:If you are using 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.

2Standby
status
Green:
The computer...

Indicator Meaning

6Caps lock
Green:
Caps Lock mode is enabled. To enable or
disable Caps Lock mode, press the Caps
Lock key.

7Num 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.

8Bluetooth
status
Green:
Bluetooth is operational. This indicator is on
when the Bluetooth is on and not in
suspend mode.

9Wireless
status
Green:
The wireless feature (the IEEE 802.11
standard) is on, and the radio...

FRU Applicable test
Diskette drive 1.Diagnostics-->Diskette Drives
2.Interactive Tests-->Diskette
DVD drive or
DVD/CD-RW
combo drive1.Diagnostics-->Other Devices-->
CD-ROM/DVD
2.Interactive Tests-->CD-ROM/DVD Test
Memory 1. If two DIMMs are installed, remove one of
them and runDiagnostics-->Memory
Test—Quick.
2. If the problem does not recur, return the
DIMM to its place, remove the other one,
and run the test again.
3. If the test does not detect the error, run
Diagnostics-->Memory Test—Full.
Fan 1....

Fn key combinations
The following table shows the function of each combination
of Fn with a function key.
Key
combinationDescription
Fn+F1 Reserved.
Fn+F2 Reserved.
Fn+F3 Turn off the computer display, leaving the
screen blank. To turn the computer display on
again, press any key or press the TrackPoint
pointing stick.
Fn+F4 Put the computer in standby mode. To return to
normal operation, press the Fn key only,
without pressing a function key.
Notes:
1. This mode is called suspend mode in
Windows NT.
2....

Key
combinationDescription
Fn+F7 To enable this function in Windows 2000 and
Windows XP, the following procedure is
needed:
vWhen you log on to Windows 2000 and
Windows XP for the first time, press Fn+F7
and select a display-switching function in the
Initial setup window. In Windows 2000 and
Windows XP, multiple users can log on to a
single operating system by using different
user IDs. To enable this function, each user
needs to select the function in the initial
setup window when logging on for the...

Key
combinationDescription
Fn+F9 Open the IBM ThinkPad EasyEject Utility
screen. buttons for the following choices are
displayed.
vEject ThinkPad PC from Dock: This button
is displayed only if the ThinkPad computer
have been attached to a ThinkPad Mini
Dock. The computer can be detached from
the ThinkPad Mini Dock.
vEject ThinkPad PC from Mini Dock: This
button is displayed only if the ThinkPad
computer to a ThinkPad Mini Dock and
connected one or more USB devices to the
ThinkPad Mini Dock. All the USB...

Symptom-to-FRU index
The symptom-to-FRU index in this section lists symptoms
and errors and their possible causes. The most likely
cause is listed first, in boldface type.
Note:Do the FRU replacement or other actions in the
sequence shown in the column headed“FRU or
action, in sequence.”If replacing a FRU does not
solve the problem, put the original part back in the
computer. Do not replace a nondefective FRU.
This index can also help you determine, during regular
servicing, what FRUs are likely to need...

Symptom or error FRU or action, in sequence
0185
Bad startup sequence settings.
Enter BIOS Setup and load
Setup defaults.1.Run IBM BIOS Setup
Utility. Press F9, and
Enter to load the default
setting. Then save current
setting by pressing F10.
0187
EAIA data access error—The
access to EEPROM is failed.System board.
0188
Invalid RFID Serialization
Information Area.System board.
0189
Invalid RFID configuration
information area—The
EEPROM checksum is not
correct.System board.
0190
Critical low-battery...

Symptom or error FRU or action, in sequence
0220
Monitor type error—Monitor
type does not match the one
specified in CMOS.Load Setup Defaults in IBM
BIOS Setup Utility.
0230
Shadow RAM error—Shadow
RAM fails at offset nnnn.System board.
0231
System RAM error—System
RAM fails at offset nnnn.1.DIMM.
2. System board.
0232
Extended RAM
error—Extended RAM fails at
offset nnnn.1.DIMM.
2. System board.
0250
System battery error—System
battery is dead.Replace the backup battery
and run IBM BIOS Setup
Utility to...