• Distortion, deformation, or discoloration of the cosmetic parts
• Plastic parts, latches, pins, or connectors that have been cracked or broken by excessive force
• Damage caused by liquid spilled into the system
• Damage caused by the improper insertion of a PC Card or the installation of an incompatible card
• Fuses blown by attachment of a nonsupported device
• Forgotten computer password (making the computer unusable)
• Sticky keys caused by spilling a liquid onto the keyboard
• Use of an incorrect ac power adapter on laptop products
The following symptoms might indicate damage caused by nonwarranted activities:
• Missing parts might be a symptom of unauthorized service or modification.
• If the spindle of a hard disk drive becomes noisy, it may have been subject to excessive force, or dropped.
Checkout guide
Use the following procedures as a guide in identifying and correcting problems with the ThinkPad notebook
computer.
Note: The diagnostic tests are intended to test only ThinkPad products. The use of non-ThinkPad products,
prototype cards, or modified options can lead to false indications of errors and invalid system responses.
1. Identify the failing symptoms in as much detail as possible.
2. Verify the symptoms. Try to re-create the failure by running the diagnostic test or by repeating the
operation.
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.
Note: The Lenovo Solution Center program is available only on models preinstalled with the Windows
operating system. It also can be downloaded from http://www.lenovo.com/diags.
To run the Lenovo Solution Center program, click Start ➙ Control Panel ➙ System and Security ➙ Lenovo
- System Health and Diagnostics, and then follow the instructions on the screen.
For additional information about this program, see the help information system.
Quick test programs
Lenovo Hard Drive Quick Test and Lenovo Memory Quick Test are two quick test programs that enable you
to troubleshoot and resolve computer internal storage and memory problems.
Notes:
• If the computer you are servicing is not installed with the Lenovo Solution Center program, you can
download the quick test programs from the Lenovo Support Web site.
• The two programs are applicable to computers installed with the Windows 7, Windows XP, Windows
Server 2003, or Windows Server 2008 operating system.
To download and install a quick test program, go to http://www.lenovo.com/diags, and follow the instructions
on the Web site.
To run a quick test using the downloaded program, do the following:
1. Go to the C:\SWTOOLS\ldiag folder.
24
Hardware Maintenance Manual
®
7