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Symptom Action
The USB Keyboard does not
work.
Verify that:
v The computer is turned on.
v The keyboard is securely connected to a USB connector on the front or rear of
the computer.
v No keys are stuck.
The mouse does not work. The
computer does not respond to
the mouse.
Verify that:
v The computer is turned on.
v The mouse is securely connected to the mouse connector on the computer.
v The mouse is clean. Refer to “Cleaning the mouse” on page 70 for further
information.
The operating system will not
start.
Verify that:
v There is no diskette in the diskette drive.
v The startup sequence includes the device where the operating system resides.
Usually, the operating system is on the hard disk drive. For more information,
see “Selecting a startup device” on page 61.
The computer beeps multiple
times before the operating
system starts.
Verify that no keys are stuck down.
Diagnostic programs
Diagnostic programs are used to test hardware components of your computer.
Diagnostic programs are also used to report operating-system-controlled settings
that interfere with the correct operation of your computer. There are two programs
preinstalled on your computer to help you diagnose computer problems:
v Lenovo ThinkVantage Toolbox or Lenovo System Toolbox, depending on your
operating system (used when you are running the Windows operating system)
v PC-Doctor for Rescue and Recovery (used when your Windows operating
system does not start)
Notes:
1. You can also download the PC-Doctor for DOS diagnostic program from
http://www.lenovo.com/support. See “PC-Doctor for DOS” on page 70 for
detailed information.
2. If you are unable to isolate and repair the problem yourself after running the
diagnostic programs, save and print the log files created by the diagnostic
programs. You will need the log files when you speak to a Lenovo technical
support representative.
Lenovo ThinkVantage Toolbox
Note: The Lenovo ThinkVantage Toolbox program is only available on computers
preinstalled with the Windows 7 operating system from Lenovo.
The Lenovo ThinkVantage Toolbox program helps you maintain your computer,
improve computing security, diagnose computer problems, get familiar with the
innovative technologies provided by Lenovo, and get more information about your
computer. You can use the Diagnostics feature of the Lenovo ThinkVantage Toolbox
program to test devices, diagnose computer problems, create bootable diagnostic
media, update system drivers, and view system information.
68 User Guide