Lenovo ThinkPad 770Z ThinkPad 770 User's Guide - Page 131

A Universal Serial Bus (USB) Problem, A Modem Problem, Problem, Cause and Action, Computer

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Title: C79DMMST CreationDate: 07/16/97 13:09:22 A Universal Serial Bus (USB) Problem Problem A device connected to the USB port does not work. Cause and Action For Windows 95, make sure that: 1. The USB device is connected correctly. 2. Open the "Device Manager" window, and make sure that the USB device setup is correct, and that computer resource assignment and device driver installation are correct. Note: To open the "Device Manager" window, double-click on My Computer, Control Panel, and System. Then click on the Device Manager tab in the "System Properties" window. Refer to "Testing Your Computer" on page 4-32 and run the diagnostic test for the USB port. A Modem Problem Problem The internal modem does not work when you boot your computer from an operating system other than Windows 95. Action The operating system may 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. Refer to the online book to cancel the IRQ shared condition. Chapter 4. Solving Computer Problems 4-23

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A Universal Serial Bus (USB) Problem
Problem
Cause and Action
A device connected to the
USB port does not work.
For Windows 95, make sure that:
1. The USB device is connected correctly.
2. Open the “Device Manager” window, and make sure that the USB device
setup is correct, and that computer resource assignment and device driver
installation are correct.
Note:
To open the “Device Manager” window, double-click on
My
Computer
,
Control Panel
, and
System
.
Then click on the
Device
Manager
tab in the “System Properties” window.
Refer to “Testing Your Computer” on page
4-32 and run the diagnostic test for
the USB port.
A Modem Problem
Problem
Action
The internal modem does
not work when you boot
your computer from an
operating system other
than Windows 95.
The operating system may 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.
Refer to the online book to cancel the IRQ shared condition.
Chapter 4.
Solving Computer Problems
4-23
Title: C79DMMST CreationDate: 07/16/97 13:09:22