Lenovo R50 Series manual Solution Problem

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Solving computer problems

Solution:

If you select the Maximum Battery mode for the Intel SpeedStep® technology, this problem may occur. This mode is designed to achieve maximum battery life by switching the processor speed between the regular low speed and half of that speed, depending on how much the processor is used. If the use increases, Intel SpeedStep switches the processor speed to the lower speed. Operation in this mode can severely degrade the performance of the processor, and thus cause the playback of a DVD to be jerky.

To avoid or reduce this problem, you can choose any of three other modes of operation, as follows:

vMaximum Performance: Keeps the processor speed high at all times.

vAutomatic: Switches the processor speed between high and low, depending on how much the processor is used. If the use increases, Intel SpeedStep switches the processor speed to high.

vBattery Optimized Performance: Keeps the processor speed low at all times.

To choose a mode, do the following:

1.Start the ThinkPad Configuration Program.

2.Click Power Management.

3.Click the Intel SpeedStep technology tab.

4.From the list, select the mode you want.

5.Click OK.

Problem:

You cannot connect using the built-in wireless networking card.

Solution:

If the computer display is closed, open it and try again.

Problem:

If your operating system is Windows 2000 and you are using a USB 1.x device, then when your computer returns from standby or hibernation mode to normal operation, the Unsafe Removal of Devicemessage may appear.

Solution:

You can safely close this message. It is displayed because of the USB 2.0 driver problem on Windows 2000. You can get detailed information in the More Information section of the Microsoft Knowledge Base 328580 and 323754. Visit the Microsoft Knowledge Base homepage at http://support.microsoft.com/, type the number of the knowledge base article you need in the search field, and click the Search button.

Problem:

An application does not run correctly.

30ThinkPad® R50 Series Service and Troubleshooting Guide

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Contents ThinkPad R50 Series Service and Troubleshooting Guide Page ThinkPad R50 Series Service and Troubleshooting Guide Page Contents Iv ThinkPad R50 Series Service and Troubleshooting Guide Σηµαντικ Οδηγ Σχετικ Με την ασϕ ΣηµεΚαταστ Που πρ Να αντιµετωπ Απ εξουσιοδοτηµ Τεχνικ Και µε κ ΗλεκτρονικΣυντ Γενικ οδηγ ΑσϕΕπικ Κινητ µ Αποϕ Την επαϕ µε τα δ Σας και µε Του σ Επεκτ Καλωδ Και σχετικ Συσκευ Καλ Και µετασχηµατιστΠροσοχ Φις και πρ ΜπαταρΘερµ Και εξαερισµ CD και DVD DVDΠληροϕορ Ασϕ ΚΙΝ∆ΥΝΟΣXiii Προσοχη CDCΣχετικ Με τις προδιαγραϕ Των συσκευ Laser DVD-ROMΠΡΟΕΙ∆ΟΠΟΙΗΣΗ Ο χειρισµ Important regulatory notice for users Important notice for usersInformation about hard disk capacity Xviii ThinkPad R50 Series Service and Troubleshooting Guide Finding information with Access IBM XixXx ThinkPad R50 Series Service and Troubleshooting Guide Overview of your new ThinkPad computer Front view Your ThinkPad at a glanceRear view Features Features Specifications Important tips Be careful about where and how you work Caring for your ThinkPad computerBe gentle with your computer Carry your computer properlyHandle storage media and drives properly Take care in setting passwordsOther important tips Cleaning the cover of your computer Cleaning your computer keyboardCleaning your computer display Care for the fingerprint readerCaring for your ThinkPad computer Solving computer problems Diagnosing problems TroubleshootingError messages Click PC-DoctorSolving computer problems Solving computer problems Solving computer problems Select Security -IBM Predesktop Area -Access IBM Predesktop Problem Errors without messagesSolution My screen goes blank while the computer is on Power switch problem Password problemKeyboard problems UltraNav problems Standby or hibernation problems If these items are correct, have the computer serviced Select Timer Wake with Battery Operation by pressing Enter Computer screen problems Click Power ManagementBattery problems Click AdvancedHard disk drive problems Startup problem Fingerprint authentication problems Other problems Solution Problem Starting Bios Setup Utility Starting Bios Setup Utility Recovering pre-installed softwareRecovering pre-installed software Upgrading the hard disk driveUpgrading the hard disk drive Handling a hard disk driveUpgrading the hard disk drive Replacing the battery Replacing the battery Replacing the battery Getting help and service Getting help and service Getting help on the Web Calling the Customer Support CenterFRU Getting help around the world Wireless interoperability Appendix A. Wireless related informationUsage environment and your health Authorized Operation Within the United States and Canada Enabling Extended Channel Mode ThinkPad R50 Series Service and Troubleshooting Guide Appendix B. Warranty information Lenovo Statement of Limited WarrantyWhat this Warranty Covers Part 1 General TermsHow to Obtain Warranty Service What this Warranty Does not CoverWhat Lenovo Will Do to Correct Problems Exchange of a Machine or Part Your Additional ResponsibilitiesLimitation of Liability Governing LawPart 2 Country-unique Terms Mexico ParaguayPeru UruguayUnited States Asia Pacific AustraliaCambodia and Laos CAMBODIA, INDONESIA, and LaosIndia 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 ConsumersThinkPad R50 Series Service and Troubleshooting Guide Egypt Following Terms Apply to the Country Specified AustriaFrance Hungary GermanyIreland Items for Which Lenovo is Not Liable SlovakiaUnited Kingdom Part 3 Warranty Information Warranty PeriodTypes 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 ServiceWorldwide telephone list Country or Region Telephone Number Country or Region Telephone Number Guarantee supplement for Mexico ThinkPad R50 Series Service and Troubleshooting Guide Appendix C. Customer Replacement Units CRUs Customer replaceable units CRUsThinkPad R50 Series Service and Troubleshooting Guide Appendix D. Notices Television output notice Electronic emissions noticesIndustry Canada Class B emission compliance statement European Union EMC Directive conformance statementHandling a disused ThinkPad battery pack Disposing of a disused lithium batteryEnvironmental notices for Japan IBM Lotus Software Offer U. S. Or Canada Call Latin American Countries European CountriesTrademarks Asia Pacific CountriesThinkPad R50 Series Service and Troubleshooting Guide Index ThinkPad R50 Series Service and Troubleshooting Guide Page Part Number 39T2410