Filter
Top Products
Symptom Action
The mouse does not work.
Verify that:
• The computer is turned on.
• The mouse is correctly connected to an appropriate mouse connector (the PS/2
mouse connector or one of the USB connectors) on the computer.
• The mouse is clean. Refer to “Cleaning the mouse” on page 72
.
The operating system does not
start.
Verify that you list the device where the operating system resides in the startup
device sequence. Usually, the operating system is on the hard disk drive. For more
information, see “Selecting a startup device” on page 63
.
The computer beeps multiple
times before the operating
system starts.
Verify that no keys are stuck.
Diagnostic programs
Diagnostic programs are used to test hardware components of your computer. Diagnostic programs can
also report operating-system-controlled settings that interfere with the correct operation of your system.
You can use the preinstalled diagnostic program to diagnose computer problems, if your computer is
running the Windows operating system.
Notes:
1. Depending on the date when your computer was manufactured, your computer is preinstalled with
either the Lenovo Solution Center program or the Lenovo ThinkVantage Toolbox program for diagnostic
purposes. For more information about the Lenovo ThinkVantage Toolbox program, see “Lenovo
ThinkVantage Toolbox” on page 71
. For more information about the Lenovo Solution Center program,
see “Lenovo Solution Center” on page 70.
2. You can also download the PC-Doctor for DOS diagnostic program from http://www.lenovo.com/support.
See “PC-Doctor for DOS” on page 71 for detailed information.
3. If you are unable to isolate and repair the problem yourself after running the programs, save and print
the log les created by the programs. You will need the log les when you speak to a Lenovo technical
support representative.
Lenovo Solution Center
The Lenovo Solution Center program enables you to troubleshoot and resolve computer problems. It
combines diagnostic tests, system information collection, security status, and support information, along
with hints and tips for maximum system performance.
Notes:
• The Lenovo Solution Center program is available only on models preinstalled with the Windows 7
operating system. If your Windows 7 model is not preinstalled with the program, you can download it
from http://www.lenovo.com/diagnose.
• If you are using the Windows Vista or Windows XP operating system, go to
http://www.lenovo.com/diagnose for the latest information on diagnostics for your
computer.
To run the Lenovo Solution Center program on the Windows 7 operating system, click Start ➙ All Programs
➙ Lenovo ThinkVantage Tools ➙ System Health and Diagnostics. Follow the instructions on the screen.
For additional information, refer to the Lenovo Solution Center help system.
70 ThinkCentre User Guide