Lenovo 41N5624 manual Enabling DMA for Windows XP

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Appendix C. Customizing the device-driver configuration settings

The DMA parameter improves computer performance by having the computer DMA controller handle data transfers from the CD to memory, freeing the computer microprocessor to perform more important tasks. For example, activating DMA might make movies and games run more smoothly because the microprocessor will be allocating more processing time to video.

Enabling DMA for Windows 2000

To change the DMA parameter setting for Windows 2000, do the following:

1.Click Start --> Settings --> Control Panel.

2.Double-click System.

3.Click the Hardware tab.

4.Click Device Manager.

5.Click the IDE ATA/ATAPI controller to open up the tree.

6.Double-click the device that corresponds to your CD-ROM port. It is either Primary IDE or Secondary IDE.

7.Click the Advanced Settings tab.

8.Click the Transfer Mode menu and select DMA if available.

9.Click OK.

10.Click Close to close the System Properties window. A message is displayed, informing you that the system settings have changed.

11.Click OK to restart the computer.

Enabling DMA for Windows XP

To change the DMA parameter setting from the Windows XP desktop, do the following:

1.Click Start --> Control Panel.

2.Click Switch to classic view.

3.Double-click System.

4.Click the Hardware tab.

5.Click the Device Manager button.

6.Click on the IDE ATA/ATAPI controller to expand the tree.

7.Double-click on the controller that corresponds to where your CD-RW is located (Primary IDE or Secondary IDE).

8.Click on the Advanced Settings tab.

9.Select the appropriate Transfer Mode pull-down that corresponds to the CD-RW location, (Device 0 for Master, Device 1 for Slave).

10.Select DMA if it is available.

11.Click OK.

© Lenovo 2006. Portions © IBM Corp. 2004.

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Contents Page Page Page Page Iii Safety information Read firstPage Service General safety guidelinesPower cords and power adapters Plugs and outlets Extension cords and related devicesBatteries Heat and product ventilation CD and DVD drive safetyPage Contents Page Part 2 Appendixes Part 1 Installation and user’s guideAbout this book Registering your optionPage Multimedia Center for Think Offerings Installation and user’s guideProduct description Software descriptionUDF Reader Installation requirementsHandling precautions Before you beginUnpacking the drive Drive controls and connectorsInstalling the drive Opening the computerAttaching the cables to the drive and main board Mounting the drive in the bayCD safety information Completing the hardware installationUpdating your computer configuration Care and maintenanceCaring for the CD-RW / DVD-ROM Combination Drive Installing softwareManually ejecting a disc Playing audio CDs Configuring the drive for digital playbackConfiguring the playback application for digital playback Using WinDVDChanging the DVD region code Starting WinDVDClick the General Properties tab Using the Multimedia Center for Think OfferingsCopying and imaging discs Click Intervideo WinDVDClick the task Burn Image to CD or DVD Using Direct-to-Disc DLAClick Make Compatible Page Physical specifications Appendix A. Product specificationsPower requirements Environmental requirements Average access timesSustained Transfer Rate Appendix B. Problem solving Video appears to be choppy or is dropping frames Select Advanced/IDE ConfigurationDisc cannot be read. Take the following actions There is no sound from the discEnabling DMA for Windows XP Enabling DMA for WindowsPage Appendix D. Enabling Digital Audio Extraction Page Appendix D. Enabling Digital Audio Extraction D-3 Page Part 1 General Terms Appendix E. Lenovo Statement of Limited WarrantyWhat this Warranty Covers What this Warranty Does not CoverWhat Lenovo Will Do to Correct Problems How to Obtain Warranty ServiceExchange of a Machine or Part Limitation of Liability Your Additional ResponsibilitiesPart 2 Country-unique Terms Venezuela ParaguayPeru UruguayCAMBODIA, INDONESIA, and Laos Cambodia and LaosIndia PEOPLE’S Republic of China PRC JapanMalaysia NEW ZealandSingapore PhilippinesEUROPE, Middle EAST, Africa Emea Appendix E. Lenovo Statement of Limited Warranty E-9 Following Terms Apply to ALL EU Countries European Union EUConsumers Germany AustriaEgypt FranceIreland HungaryItems for Which Lenovo is Not Liable United Kingdom SlovakiaCustomer Replaceable Unit ″CRU″ Service Part 3 Warranty InformationWarranty Period Types of Warranty ServiceWorldwide telephone list Appendix E. Lenovo Statement of Limited Warranty E-17 Country or Region Telephone Number Guarantee supplement for Mexico Page Online technical support Appendix F. Service and SupportTelephone technical support Page Appendix G. Notices Trademarks Avis de conformité à la réglementation d’Industrie Canada Appendix H. Electronic emission noticesFederal Communications Commission FCC Emission Notice Industry Canada Class B emission compliance statementAvis de conformité à la directive de l’Union Européenne Unione Europea Directiva EMC Conformidad électromagnética Unión Europea Normativa EMCPage Page Part Number 41N5624