Lenovo 8131, 8124, 8138, 8123, 8137, TC A51-8122 warranty CD and DVD drive safety

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become blocked by placing the product on a bed, sofa, carpet, or other flexible surface. Never block, cover or disable these features.

You should inspect your desktop computer for dust accumulation at least once every three months. Before inspecting your computer, turn off the power and unplug the computer’s power cord from the electrical outlet; then remove any dust from vents and perforations in the bezel. If you notice external dust accumulation, you should also examine and remove dust from the inside of the computer including heat sink inlet fins, power supply vents, and fans. Always turn off and unplug the computer before opening the cover. If possible, avoid operating your computer within 2 feet of high-traffic areas. If you must operate your computer in or near a high-traffic area, you should inspect and, if necessary, clean your computer more frequently.

For your safety and to maintain optimum computer performance, always follow these basic precautions with your desktop computer:

vKeep the cover closed whenever the computer is plugged in.

vRegularly inspect the outside of the computer for dust accumulation.

vRemove dust from vents and any perforations in the bezel. More frequent cleanings might be required for computers in dusty or high-traffic areas.

vDo not block or restrict airflow into the front of the computer.

vDo not block the airflow vents on the back of the computer.

vDo not store or operate your computer inside furniture, as this might increase the risk of overheating.

vAirflow temperatures into the computer should not exceed 35° C (95° F).

vDo not use non-ThinkCentre air filtration devices.

CD and DVD drive safety

CD and DVD drives spin discs at a high speed. If a CD or DVD is cracked or otherwise physically damaged, it is possible for the disc to break apart or even shatter when the CD drive is in use. To protect against possible injury due to this situation, and to reduce the risk of damage to your machine, do the following:

vAlways store CD/DVD discs in their original packaging

vAlways store CD/DVD discs out of direct sunlight and away from direct heat sources

vRemove CD/DVD discs from the computer when not in use

vDo not bend or flex CD/DVD discs, or force them into the computer or their packaging

vCheck CD/DVD discs for cracks before each use. Do not use cracked or damaged discs

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Contents Quick Reference Page Quick Reference Page Contents Page Important safety information Conditions that require immediate actionGeneral safety guidelines ServicePower cords and power adapters Extension cords and related devices Plugs and outletsBatteries Heat and product ventilationCD and DVD drive safety Additional safety information Lithium battery noticeModem safety information Laser compliance statementPower supply statement Xiv Additional help Xvi Arranging your workspace ComfortGlare and lighting Air circulation Electrical outlets and cable lengthsSetting up your computer Phone Line Setting up your computer 1394 Turning on power Finishing the software installationInstalling other operating systems Completing important tasksUpdating your operating system Updating your antivirus softwareStarting the Setup Utility Shutting down the computerRecording your computer information Page Recovering software Creating and using product recovery discsBackup and recovery To create Product Recovery discs, do the followingTo use Product Recovery discs, do the following Using the rescue and recovery workspace To perform a backup operation, do the followingPage Solving recovery problems Post-recovery notesCreating and using rescue media Creating and using a Recovery Repair disketteRecovering or installing device drivers Setting a rescue device in the startup sequence Getting information, help, and service Getting help and serviceUsing the documentation and diagnostic programs Getting informationCalling for service Telephone numbersOther services Purchasing additional servicesPage Troubleshooting and diagnostics Basic troubleshootingSymptom Action Power supply and system board Diagnostic LEDs PC-Doctor for DOS DiagnosticsRunning Diagnostics from the Rescue and Recovery workspace Creating a Diagnostics disketteRunning the Diagnostics diskette Error codes Code Description ActionCode Description Action Post beep codes Beep pattern Description ActionPage Appendix A. IBM Lotus Software Offer U. S. Or Canada Call Latin American Countries European CountriesAsia Pacific Countries Page Appendix B. Lenovo Statement of Limited Warranty What this Warranty CoversWhat this Warranty Does not Cover Part 1 General TermsHow to Obtain Warranty Service What Lenovo Will Do to Correct ProblemsExchange of a Machine or Part Your Additional ResponsibilitiesLimitation of Liability Governing LawPart 2 Country-unique Terms Paraguay PeruUruguay VenezuelaAsia Pacific Australia Cambodia and LaosCAMBODIA, INDONESIA, and Laos India Japan MalaysiaNEW Zealand PEOPLE’S Republic of China PRCSingapore EUROPE, Middle EAST, Africa EmeaGoverning Law Arbitration The following is added under this heading European Union EU ConsumersFollowing paragraphs are added to this section Egypt FranceGermany Hungary IrelandItems for Which Lenovo is Not Liable SlovakiaUnited Kingdom Part 3 Warranty Information Warranty PeriodTypes Types Types Types of Warranty Service Customer Replaceable Unit ″CRU″ ServiceOn-site Service Courier or Depot ServiceCustomer Carry-In or Mail-In Service CRU and On-site ServiceCRU and Courier or Depot Service CRU and Customer Carry-In or Mail-In ServiceCountry or Region Telephone Number Country or Region Telephone Number Country or Region Telephone Number Guarantee supplement for Mexico Page Appendix C. Customer Replacement Units CRUs HDD Appendix D. Notices Television output notice TrademarksElectronic emissions notices Industry Canada Class B emission compliance statement European Union EMC Directive conformance statementCanadian Department of Communications certification label Power cord notice Power cord part Number Used in these countries and regions Power cord part Number Used in these countries and regions Appendix D. Notices Page Page Part Number 41D1345