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Troubleshooting Guide
A Universal Serial Bus (USB) Problem
Problem
Cause and Action
A device connected to the
USB connector does not
work.
Do the following:
1. Make sure that the USB device is connected correctly.
2. Open the “Device Manager” window, and make sure that the USB device
setup is correct, and that the computer resource assignment and device
driver installation are correct.
Note: To open the “Device Manager” window, click on Start and move the
cursor to Settings and Control Panel. Double-click on Control
Panel, and System. Then click on the Device Manager tab in the
“System Properties” window.
Refer to “Testing Your Computer” on page 155 and run the Easy-Setup “Test”
submenu for diagnostic test of the USB connector.
PC Card or Built-in Modem Problems
Problem
Cause and Action
The internal modem does
not work when you start
your computer from an
operating system other
than Windows 95.
The operating system might be sharing the same IRQ levels as your modem.
The ThinkPad Modem software might not work under these conditions. You
must cancel the IRQ shared condition to use the modem.
To cancel the IRQ shared condition
Online User's Guide.
My modem application
does not work with the
ThinkPad modem.
Make sure that the internal modem port is enabled by opening the “Device
Manager” window and running the Modem Wizard or by opening the ThinkPad
Configuration program and doing as follows:
1. Click on Start.
2. Move the cursor to Programs and ThinkPad; then click on ThinkPad
Configuration.
3. Click on Internal Modem (
).
4. Select Enable.
5. Click on OK.
Your PC Card modem
does not work.
Make sure that the infrared port is disabled and the modem is set up correctly
by following the instructions in this book or manuals shipped with your PC Card
modem.
Chapter 4. Solving Computer Problems
143