Lenovo 8010, 8813, 8796, 8808, 8800, 8804, 8792 Troubleshooting and diagnostics, Basic troubleshooting

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Chapter 7. Troubleshooting and diagnostics

This chapter describes some basic troubleshooting and diagnostic programs. If your computer problem is not described here, see Chapter 8, “Getting information, help, and service,” on page 59 for additional troubleshooting resources.

Basic troubleshooting

The following table provides information to help you troubleshoot your computer problem.

Symptom

Action

 

 

The computer does not start

Verify that:

when you press the power

v The power cord is plugged into the rear of the computer and into a working

button.

electrical outlet.

 

 

v If your computer has a secondary power switch on the back of the computer,

 

ensure that it is switched on.

 

v The power indicator on the front of the computer is on.

 

v The voltage is set to the correct setting for your country.

 

If you cannot correct the problem, have the computer serviced. Refer to the

 

warranty and safety information that is provided with your computer for a list of

 

service and support telephone numbers.

 

 

The monitor screen is blank.

Verify that:

 

v The monitor cable is securely attached to the rear of the monitor and to the

 

rear of the computer.

 

v The monitor power cord is plugged into the monitor and into a working

 

electrical outlet.

 

v The monitor is turned on and the brightness and contrast controls are set

 

correctly.

 

v The monitor signal cable is securely connected to the monitor and to the

 

monitor connector on the computer.

 

Note: If your computer has two monitor connectors, verify that your monitor is

 

connected to the one in the AGP option connector rather than the one in the rear

 

of the system board. For more information, “Connecting your computer” on page

 

3.

 

If you cannot correct the problem, have the computer serviced. Refer to the

 

warranty and safety information that is provided with your computer for a list of

 

service and support telephone numbers.

 

 

The keyboard does not work.

Verify that:

The computer does not respond

v The computer is turned on.

to the keyboard.

v The monitor is turned on and the brightness and contrast controls are set

 

 

correctly.

 

v The keyboard is securely connected to the keyboard connector on the

 

computer.

 

v No keys are stuck.

 

If you cannot correct the problem, have the computer serviced. Refer to the

 

warranty and safety information that is provided with your computer for a list of

 

service and support telephone numbers.

 

 

© Lenovo 2006. Portions © IBM Corp. 2005.

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Contents User Guide Types 8010, 8792, 8796 Types 8804, 8808 Page User Guide Types 8010, 8792, 8796 Types 8804, 8808 Page Contents Index Appendix A. Manual modem Commands Conditions that require immediate action Important safety informationService General safety guidelinesPower cords and power adapters Extension cords and related devices Plugs and outletsBatteries Heat and product ventilation CD and DVD drive safetyLithium battery notice Additional safety informationLaser compliance statement Modem safety informationPower supply statement Introduction Xiv User Guide Arranging your workspace ComfortGlare and lighting Electrical outlets and cable lengths Air circulationConnecting your computer Setting up your computerUser Guide Setting up your computer 1394 Turning on power Finishing the software installation Completing important tasksUpdating your operating system Installing other operating systems Updating your antivirus softwareShutting down the computer User Guide Features Installing optionsMemory Expansion Available options Environment SpecificationsSupported operating positions Tools requiredHandling static-sensitive devices Installing external options Locating connectors on the rear of your computer Obtaining device drivers Connector DescriptionOpening the cover Locating components Accessing system board components and drives Identifying parts on the system board Installing memory What to do next Installing PCI adaptersInstalling internal drives Drive specifications Installing a drive in bay Connecting a serial ATA drive Installing a diskette drive in bay Installing options Security features Changing the battery Integrated cable lock Password protectionErasing a lost or forgotten password clearing Cmos Closing the cover and connecting the cables User Guide Creating and using product recovery discs Recovering softwareTo use Product Recovery discs, do the following Backup and recoveryUsing the Rescue and Recovery workspace Creating and using rescue media Solving recovery problemsTo create rescue media, do the following Creating and using a Recovery Repair disketteSetting a rescue device in the startup sequence Recovering or installing device driversRecovering software User Guide Starting the Setup Utility program Using the Setup UtilityViewing and changing settings Using passwordsAdministrator Password User PasswordSetting, changing, and deleting a password Selecting a startup deviceAdvanced settings Exiting from the Setup Utility programChanging the startup device sequence User Guide Using system programs Updating flashing Bios from a diskette or CD-ROMUpdating system programs Recovering from a POST/BIOS update failure Updating flashing Bios from your operating systemUpdating system programs User Guide Basic troubleshooting Troubleshooting and diagnosticsDiagnostic programs PC-Doctor for DOS PC-Doctor for WindowsRunning diagnostics from the CD or diskettes Cleaning the mouseNon-optical mouse Optical mouseUser Guide Information resources Getting information, help, and serviceOnline Books folder ThinkVantage Productivity CenterAccess Help Warranty and safetyHelp and service Calling for service Using the documentation and diagnostic programsPurchasing additional services Using other servicesBasic AT commands Appendix A. Manual modem commandsLow speaker volume Enable RTS/CTS hardware flow control Extended AT commands+MS=? MNP/V.42/V.42bis/V.44 commandsFax Class 2 commands Fax Class 1 commandsVoice commands Appendix A. Manual modem commands User Guide Appendix B. Notices Trademarks Television output noticeIndex Page Page Part Number
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8010, 8792, 8804, 8800, 8808 specifications

Lenovo has consistently been at the forefront of innovation and quality in the technology industry. Among its diverse range of products, the models 8796, 8813, 8808, 8792, and 8800 stand out for their unique features and specifications that cater to the varying needs of consumers.

The Lenovo 8796 model is known for its robust performance and reliability. It often features powerful processors paired with ample RAM, making it ideal for multitasking and demanding applications. The 8796’s display typically boasts vibrant colors and sharp resolution, enhancing the overall user experience whether for work or entertainment. Additionally, its extensive connectivity options allow for versatile use, accommodating a variety of peripherals.

Next, the Lenovo 8813 model is recognized for its sleek design and portability. Targeted towards professionals on the go, it provides a lightweight chassis without compromising performance. What sets the 8813 apart is its long battery life, enabling users to work for extended periods without needing to recharge. The inclusion of advanced security features ensures that sensitive data remains protected, making it a valuable choice for corporate users.

The Lenovo 8808 model emphasizes multimedia capabilities, featuring enhanced audio systems and high-resolution displays for a superior entertainment experience. Whether it’s gaming or streaming movies, the 8808 delivers on performance and quality. It also incorporates top-tier graphics options for graphics-intensive tasks, appealing to both gamers and creative professionals.

Moving on to the Lenovo 8792, this model is tailored for education and everyday tasks. Its affordability does not compromise quality, making it a popular choice among students and families. The 8792 typically includes user-friendly features and applications, promoting accessibility and efficiency for various tasks, from basic computing needs to online learning.

Finally, the Lenovo 8800 model combines business functionality with impressive specs. This device often features a durable build quality, catering to users requiring a reliable workhorse. Enhanced collaboration tools allow for seamless communication and teamwork, reflecting Lenovo’s commitment to supporting business environments.

Each of these Lenovo models showcases unique characteristics that appeal to different user demographics, making them excellent choices in their respective categories. With cutting-edge technology and thoughtful design, Lenovo continues to meet and exceed the expectations of its customers worldwide.
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