• When you are using DOS, it is recommended that you use the DOS command MEM /C to review your DOS memory usage occasionally. And then:

  • Unload any unnecessary drivers from the CONFIG.SYS file. (For example, unload printer drivers if you do not use a printer.)

  • Reconfigure the UMB (upper memory block) using the DEVICEHIGH statement.

  • Use the multiple configuration setup for DOS (refer to the documents supplied with DOS).

• When you are using Windows Version 3.11:

  • Try the same actions as described for DOS.

  • Unload any unnecessary programs from the WIN.INI file (for example, FUELWIN for ac operations.)

• Make sure the display output type parameter of the ThinkPad Features program is set to CRT () or Both ().

• In the ThinkPad Features program, set the computer not to enter suspend mode when the LCD is closed.

1. Connect the AC Adapter to the computer.

2. Replace the battery pack with a fully charged one and then press the power switch.

   If the computer was in suspend mode, the data before entering suspend mode might not be saved.

• If you are using the AC Adapter and the computer is communicating, suspend and hibernation modes are disabled. (See "Considerations for Suspend Mode".)

• If using the hibernation mode, make sure you have created the hibernation file. (See reference #62.)

• In the U.S., access the IBM PC Company BBS to get the latest versions of device driver diskettes.

• Purchase the operating system diskettes or device driver diskettes. Contact your IBM reseller or IBM marketing representative. (See "How to receive Customer Support and Service" for IBM Customer Support and Services.)

1. Click on OK to disable DMA for the infrared port.
2. Close a parallel port panel.
3. Click on the Infrared device button to open the infrared panel.
4. Chose DMA0 or DMA1 for infrared port on the panel.
5. If you see the panel prompting if you want to disable DMA for an audible device, click on OK.

See Note on reference #19.

&Icap.9990301
(Hard disk drive error)
&Icap.9990305
(Startup error)

For &Icap.9990301, there is an error in the hard disk drive or it cannot be found.
For &Icap.9990305, the computer cannot find the startup drive.

Note: If you have upgraded your hard disk drive or have a new one, install an operating system first before proceeding.

Do the following:

1. Turn off the computer.

2. Press and hold F1; then turn on the computer to start Easy-Setup. Hold F1 until the Easy-Setup menu appears.

3. Select the Start up icon. If you are unable to set the startup sequence, have the computer serviced.

4. Check the list of devices on the startup sequence box. Is the default drive listed in the startup sequence box?

   Yes

   Exit this screen, and turn off the computer.

   No

   Select the Reset icon.

5.  Is an operating system installed?

   Yes

   Go to step 7.

   No

   Install operating system in your computer.

6. After the operating system is installed, turn off the computer.

7.  Turn on the computer.

If the same screen message appears, have the computer serviced.

Install an operating system following the instructions in "Installing Software".

(Except the above I999030x errors)

(Undefined date or configuration error)

(Device configuration error)

Have the computer serviced.

(Invalid password error)

(Critical low-battery error)

Connect the AC Adapter to the computer and charge the battery pack, or replace the battery pack with a fully charged one.

(Hibernation error)

If the memory size is changed, re-create the hibernation file (see reference #62).

(Hibernation error)

Have the computer serviced.

(Memory error)

(Keyboard error)

If there is still a problem, do the following:

• If the computer has an external keyboard connected, do the following:

  • Turn off the computer and disconnect the external keyboard; then turn on the computer. If no error occurred, your external keyboard might be damaged. Have the external keyboard serviced.

  • Verify that the external keyboard is connected to the correct side of the keyboard/mouse connector (see reference #84).

  • Verify that the keyboard/mouse connector is correctly connected to the computer.

  If the preceding items are correct, disconnect the keyboard/mouse connector from the computer and verify that the operation of the system keyboard is correct. If the system keyboard works correctly, have the keyboard/mouse connector or the external keyboard serviced.

• Test the computer by selecting the Start icon in the Test menu of Easy-Setup.

  • If the computer stops during testing and does not continue, have the computer serviced.

Note: If you are not sure about the beeps, turn the computer off; then turn it on again, and listen for the beeps.

• The battery pack is correctly installed.

• The AC Adapter is connected to the computer and the power cord is plugged into a working electrical outlet.

• The computer power switch is turned on.

If the preceding items are correct and the screen remains blank, have the computer serviced.

Note: If you are using an external monitor, go to "External Monitor Problems".

If a power-on password is not set, verify that the brightness control on the computer is correctly adjusted. If the preceding items are correct and the screen remains blank, have the computer serviced.

If there is still a problem, have the computer serviced.

• The ThinkPad display driver is installed correctly (refer to "Installing Software" for installation instructions).

• The refresh rate settings in the ThinkPad Features program's display setup screen (under the Advanced... button) are set to your display resolution and color type.

If so, have the computer serviced.

• The battery pack is charged.

• The environmental temperature is within the acceptable range. Refer to "Specifications".

If the preceding items are correct, have the computer serviced.

If so, press F1. If both prompts remain, have the computer serviced.

Set the date and time by typing or clicking on the or to set the numbers; then click on the OK button.

If there is still a problem, have the computer serviced.

• If you cannot go beyond the Test screen, have the computer serviced.

• If the computer stops during testing and does not continue, have the computer serviced.

• If testing does not find a problem but one still exists, find the problem in "What If Testing Cannot Find the Problem?".

  If the test ends with an error, make a note of the error code and have the computer serviced.

If the test ends with an error, make a note of the error code and have the computer serviced.

If the test ends with an error, make a note of the error code and have the computer serviced.

You can start the operating system by pressing F1 instead and ignore the error.

If the test ends with an error, make a note of the error code and have the computer serviced.

If you cannot start Easy-Setup, have the computer serviced.

If there is still a problem, have the computer serviced.

If there is still a problem, press the Power Shutdown switch on the bottom of the computer with the tip of a pen to turn off the computer.

1. Turn off the computer.

2. Make sure that the battery pack is in the computer.

3. Connect the AC Adapter to the computer and let it charge.

If the battery pack cannot be fully charged in 24 hours, use a new battery pack.

• The power cord for the external monitor is plugged into a working electrical outlet and into the external monitor.

• The external monitor is turned on and the brightness and contrast controls are adjusted.

• The signal cable for the external monitor is plugged into the external-monitor connector on the computer. Some signal cables might not fit into the external-monitor connector because of the connector type.

• The external monitor (CRT or Both ) is selected as the display device using the Fn key function (see reference #12) or the ThinkPad Features program (see reference #15).

After verifying the preceding items, turn off the computer; then turn it on.

If the external monitor remains blank, run the display tests described in the instructions supplied with the external monitor. If the tests show the external display is OK, have the computer serviced.

• The ThinkPad display driver is installed correctly (see "Installing Software").

• The device setup parameters in the display setting screen (click on the Display () icon in the ThinkPad Features program) are set to your display resolution and color type (see reference #33).

To change or set up the external monitor, see "Attaching an External Monitor".

If these are correct, run the tests described in the instructions supplied with the external monitor. If the tests show the external display is OK, have the computer serviced.

If so, have the computer serviced.

• Did you create the hibernation file?

  You must create the hibernation file before entering hibernation mode (see reference #62).

• Are you using PC Cards?

  If you are using one of the IBM communication PC Cards listed in the "Considerations for Hibernation Mode", the computer cannot enter hibernation mode.

  To enter hibernation mode, stop the communication program, and then remove the PC Card or turn off the power to the PC Card slot using the PC Card Director.

• Power is supplied to the infrared port by the ThinkPad Features program (click on the Infrared () icon).

• The infrared function is enabled and other choices are set correctly in the ThinkPad Features program (click on the Infrared () icon in the ThinkPad Features program).

• The communicating device is using an equivalent communication speed (see reference #38).

• The infrared port is clean and does not have any spots.

• No cable or electrical device is between the computer and the communicating device.

• The distance and angle between the computer and the communicating device are correct.

• The distance and angle between the devices are correct.

• The communicating device is using an equivalent communication speed.

• There is no device radiating infrared rays, such as remote-controlled devices or wireless headphones, near the computer or device.

• Direct sunlight or fluorescent lamps are not near the computer or device.

• If the problem occurs immediately after the computer returns to normal operation from suspend mode, enter the power-on password. If a power-on password is set, you must enter the password.

• If the external keyboard is connected, the numeric keypad on the system keyboard will not work.

• If the external numeric keypad or the mouse is connected:

  1. Turn off the computer.

  2. Remove the external numeric keypad or the mouse.

  3. Turn on the computer and try using the keyboard again.

If the keyboard problem is resolved, check the connection of the external numeric keypad, external keyboard, or the mouse. If there is still a problem, have the computer serviced.

• When the computer is turned on.

• When resuming normal operation.

• When the TrackPoint III is pressed for a long period of time.

• When the environmental temperature changes.

• Verify that the mouse or pointing-device cable is securely connected to the computer.

• Try using the TrackPoint III. If the TrackPoint III works, suspect the externally attached pointing device.

• If you are using Windows 3.11, make sure Computer is set as MS-DOS System with APM. See reference #102.

• If you are using a mouse that is not compatible with the IBM PS/2 Mouse, disable the TrackPoint III using the ThinkPad Features program.
  1. For OS/2 and Windows, see reference #83 to disable the TrackPoint III.
  2. For DOS, see "Starting the Program for DOS" or reference #130.

• The keyboard/mouse connector is correctly connected to the computer.

• The keyboard connector is connected to the correct side of the keyboard/mouse connector.

If the preceding items are correct, disconnect the keyboard/mouse connector from the computer and verify that the operation of the system keyboard is correct. If the system keyboard works, have the keyboard/mouse connector or the external keyboard serviced.

• AC Adapter is connected to the port replicator.

• The power-on indicator of the port replicator is on.

• The computer is securely attached to the port replicator.

If there is still a problem, have the ThinkPad 380 or 385 port replicator serviced.

• AC Adapter is connected to the port replicator.

• The power-on indicator of the port replicator is on.

• The computer is securely attached to the port replicator.

If there is still a problem, have the ThinkPad 380 or 385 port replicator serviced.

• The option is designed an IBM ThinkPad 380 or 380D computer.

• You installed option correctly by following the instructions supplied with the option or this book.

• Other installed options or cables are not loose.

• No I/O address or interrupt level (IRQ) conflict has occurred. To see the system resource status, start the ThinkPad Features program and click on each device icon. (For some devices, the I/O address or IRQ can be seen when you click on the Advanced.. button.)

If the test programs for the option did not find the problem, have the computer and option serviced, or see Appendix A. "Avoiding Hardware Conflicts".

• All the option hardware and cable connections are securely connected.

• If the option came with its own test instructions, use those instructions to test the option.

• System resource conflicts do not occur (see Appendix A. "Avoiding Hardware Conflicts").

If the preceding items are correct and the test programs did not find the problem, have the computer and option serviced.

• If the PC Card is not a modem, ATA, flash, or SRAM card, you must have the proper client device driver for the card. In Windows 95, the PC Card must have an INF file associated with it.

• Your PC Card supports PCMCIA Release 2.0, 2.01, and 2.10. Refer to the manual that came with your PC Card.

  If your PC Card does not support PCMCIA Release 2.0, 2.01, or 2.10, you cannot use PC Card Director. Contact your PC Card supplier.

• Your PC Card is working by following the diagnostic instructions for your PC Card, if any.

• The PC Card enabler is installed.

  Refer to the manuals supplied with your PC Card.

• If the PC Card is not a modem, ATA, flash, or SRAM card, you must have the proper client device driver for the card. In Windows 95, the PC Card must have an INF file associated with it.

• The resources for the PC Card are correctly reserved.

  Refer to "Checking the Allocated Resources for the PC Card".

• The resources reserved for the PC Card do not conflict with those for other system devices.

• The resources reserved for the PC Card match the settings in the application program.

  If you are using a modem card, check the COM number, I/O port address, and IRQ level. If you are using a network card, check the I/O port address, IRQ level, and memory window address. To check the resources assigned to the PC Card, check the card information screen or click on the Status button in the PC Card Director program.

• The parallel port is enabled. (Click on the Parallel Port () icon.)

• The printer is turned on and ready to print.

• The printer signal cable is connected to the correct connector on the computer. (For the location of the printer connector, see"parallel connector" on reference #7.)

If the preceding items are correct and the printer still does not work, run the tests described in the printer manual. If the tests show that the printer is OK, have the computer serviced.

• Your computer has the minimum memory required to use the software. Refer to the manuals supplied with the software to verify this.

• The software is designed to operate with your computer and your operating system.

• Other software works correctly with your computer.

• Necessary device drivers are installed (see "Installing Software").

• The software you are using works correctly with another computer.

If you have received any error messages when using the application program, refer to the manuals supplied with the software for a description of the messages and a solution to the problem.

If the preceding items are correct and there is still a problem, contact your IBM authorized reseller or IBM marketing representative for help.