Lenovo G40 Series manual Solving computer problems

Page 51

Solving computer problems

Solution: Be sure that the disk meets the standard for your country. Usually, a disk that meets the local standards is marked with a CD logo (as shown below) on the label. If you use a disk that does not meet these standards, we cannot guarantee that it will play, or that, if it does play, the sound quality will be good.

Problem: The system shows slow performance.

Solution: This problem may occur when the ac adapter is not attached. To prolong battery life with the higher frequency of Intel’s Pentium 4/Celeron processors, the ThinkPad G40 implements the Dynamic CPU Throttling feature, which reduces CPU frequency dynamically: 1) when the system operates in battery mode; 2) when the system increases power consumption; 3) when system temperature increases.

To avoid or reduce this problem, do one or all of the following:

1.Attach the ac adapter.

2.Close applications not being used.

3.Try to lower system temperature by increasing the fan speed with the Battery MaxiMiser Wizard with Fan Control.

Problem: Playback of DVD is not smooth.

Solution: This problem may occur when the ac adapter is not attached. To prolong battery life with the higher frequency of Intel’s Pentium 4/Celeron processors, the ThinkPad G40 implements the Dynamic CPU Throttling feature, which reduces CPU frequency dynamically: 1) when the system operates in battery mode; 2) when the system increases power consumption; 3) when system temperature increases.

To avoid or reduce this problem, do one or all of the following:

1.Attach the ac adapter.

2.Close applications not being used.

3.Try to lower system temperature by increasing the fan speed with the Battery MaxiMiser Wizard with Fan Control.

Chapter 2. Solving computer problems 29

Image 51
Contents ThinkPad G40 Series Service and Troubleshooting Guide Page ThinkPad G40 Series Service and Troubleshooting Guide Page Contents Iv ThinkPad G40 Series Service and Troubleshooting Guide Σηµε Σηµαντικ Οδηγ Σχετικ Με την ασϕΕξουσιοδοτηµ Τεχνικ Και µε κ Ηλεκτρονικ Να βρε Κατ Με τους αριθµο τηλεϕ Που µπορε Να καλ Για Να ζητΚαι υποστ Στην απ Προσοχ ΚΙΝ∆ΥΝΟΣΚαλ Και µετασχηµατιστ Φις και πρ Θερµ Και εξαερισµ CD και DVD Πληροϕορ Ασϕ Xiii CDC ΠροσοχηΣχετικ Με τις προδιαγραϕ Των συσκευ Laser ΠΡΟΕΙ∆ΟΠΟΙΗΣΗ Ο χειρισµ Important notice for users Important regulatory notice for usersInformation about hard disk capacity Xviii ThinkPad G40 Series Service and Troubleshooting Guide Xix Finding information with Access IBMXx ThinkPad G40 Series Service and Troubleshooting Guide Overview of your new ThinkPad computer Your ThinkPad at a glance Front viewRear view Features External interface Diskette driveSpecifications Carry your computer properly Important tips Be careful about where and how you workCaring for your ThinkPad computer Be gentle with your computerTake care in setting passwords Handle storage media and drives properlyOther important tips Cleaning your computer keyboard Cleaning the cover of your computerCleaning your computer display Caring for your ThinkPad computer Solving computer problems Click PC-Doctor Diagnosing problemsTroubleshooting Error messagesSolving computer problems Solving computer problems Solving computer problems Select Security Predesktop Area- Access IBM Predesktop Area Errors without messages ProblemSolution Password problem Keyboard problems Power switch problemTrackPoint problems Standby or hibernation problems Click Power Management Click Advanced Computer screen problemsFor Windows XP Click Control PanelFor Windows Hard disk drive problems Battery problemsStartup problem Solving computer problems Other problems Solving computer problems Starting Bios Setup Utility Click Restore factory contents Recovering pre-installed softwareHandling a hard disk drive Upgrading the hard disk driveUpgrading the hard disk drive Replacing the battery Replacing the battery Replacing the battery Getting help and service Getting help on the Web Calling the Customer Support Center Getting help and serviceFRU Getting help around the worldGetting help and service Appendix A. Wireless related information Wireless interoperabilityUsage environment and your health Authorized Operation Within the United States and Canada Enabling Extended Channel ModeAppendix A. Wireless related information ThinkPad G40 Series Service and Troubleshooting Guide Part 1 General Terms Appendix B. Warranty informationLenovo Statement of Limited Warranty What this Warranty CoversWhat this Warranty Does not Cover How to Obtain Warranty ServiceWhat Lenovo Will Do to Correct Problems Your Additional Responsibilities Exchange of a Machine or PartGoverning Law Limitation of LiabilityPart 2 Country-unique Terms Uruguay MexicoParaguay PeruCAMBODIA, INDONESIA, and Laos United StatesAsia Pacific Australia Cambodia and LaosIndia PEOPLE’S Republic of China PRC JapanMalaysia NEW ZealandEUROPE, Middle EAST, Africa Emea SingaporeGoverning Law Arbitration The following is added under this heading Consumers European Union EUThinkPad G40 Series Service and Troubleshooting Guide Following Terms Apply to the Country Specified Austria EgyptFrance Germany HungaryIreland Slovakia Items for Which Lenovo is Not LiableUnited Kingdom Warranty Period Part 3 Warranty InformationCustomer Carry-In or Mail-In Service Customer Replaceable Unit ″CRU″ ServiceOn-site Service Courier or Depot ServiceWorldwide telephone list CRU and Customer Carry-In or Mail-In ServiceCountry or Region Telephone Number Country or Region Telephone Number Guarantee supplement for Mexico Appendix B. Warranty information ThinkPad G40 Series Service and Troubleshooting Guide IBM Appendix C. Customer Replaceable Units CRUsThinkPad G40 Series Service and Troubleshooting Guide Appendix D. Notices Electronic emissions notices Television output noticeEuropean Union EMC Directive conformance statement Industry Canada Class B emission compliance statementDisposing of a disused lithium battery Handling a disused ThinkPad battery packEnvironmental notices for Japan IBM Lotus Software Offer European Countries U. S. Or Canada Call Latin American CountriesAsia Pacific Countries TrademarksThinkPad G40 Series Service and Troubleshooting Guide Index ThinkPad G40 Series Service and Troubleshooting Guide Page Part Number 39T5951