Dell 3000 manual Power Management Mode, Smart CPU Mode, Standby Time-Out, Suspend Time-Out

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Power Management Mode

Customized (the default) allows you to control the power saving time-outs individually.

Select Disabled if you want to disable all power savings, regardless of how the time-out options are set.

Select Maximum Performance to configure power saving time-outs as a group to increase the performance of the computer. When this setting is selected, the Standby Time-Out option is set automatically to 4 minutes, and the Suspend Time-Out option is disabled. The Smart CPU Mode option is set automatically to Off.

Select Maximum Power Savings to configure the power saving time-outs as a group to save the most battery power. When this setting is selected, the Standby Time-Out option is set automatically to 1 minute, and the Suspend Time-Out option is set automatically to 5 min- utes. The Smart CPU Mode option is set automatically to On.

Smart CPU Mode

Smart CPU Mode allows the computer to slow down the microprocessor automatically if it is not being used. Set- tings for this option are:

•On — Allows the computer to slow down the micro- processor when it is inactive

•Off (the default) — Keeps the microprocessor run- ning at its normal operating speed regardless of microprocessor inactivity

To increase battery operating time, set the Smart CPU Mode option to On.

When the Smart CPU Mode option is enabled and the microprocessor is inactive, the computer slows the microprocessor to save power.

NOTES: Some communications software may not work properly when Smart CPU Mode is enabled. Dell recom- mends that you set Smart CPU Mode to Off if you are using communications software.

Interactive application programs should function well when Smart CPU Mode is enabled. (Examples of interac- tive programs include spreadsheet, text editor, graphics design, entertainment, educational, and utility pro- grams.) However, you may experience performance degradation when recalculating a large spreadsheet or

during an extensive screen redraw in a graphical pro- gram. Benchmark utilities may not perform as intended when doing microprocessor speed tests. If the software you use suffers significant performance degradation, set Smart CPU Mode to Off.

Standby Time-Out

Standby mode conserves battery power by stopping some computer activity, but leaves the computer ready to resume operations immediately. Use standby mode when you leave the computer unattended for less than a few minutes. Press <Fn><s> to enter standby mode when you are in Windows 95. Resume normal computer activity by moving the cursor or pressing any key on the built-in keyboard (the computer takes less than a second to return to normal operation).

The Standby Time-Out option lets you determine how long the computer remains idle (no I/O activity) before activating standby mode to conserve battery power. Set- tings for this option are Disabled, 1 min., 2 min., 4 min., 6 min., 8 min., 12 min., and 16 min.

To increase battery operating time, set this option to a lower number of minutes. Press any key on the built-in keyboard to resume normal computer operation.

If the time delay you set for standby mode is greater than the delay set for suspend mode, the computer enters standby mode first. For instance, if Standby Time-Out is set for 8 minutes and Suspend Time-Out is set for 5 min- utes, the computer enters standby mode after 8 minutes of no I/O activity and then enters save-to-disk or save-to-RAM suspend mode 5 minutes later.

NOTE: Set this option to Disabled if it causes compatibil- ity problems with your software.

Suspend Time-Out

Suspend Time-Out lets you determine how long the com- puter remains idle (no I/O activity) before activating save-to-RAM or save-to-disk suspend mode. Settings for this option are Disabled, 5 min., 10 min., 15 min.,

20 min., 30 min., 40 min., and 60 min.

To increase battery operating time, set this option to a lower number of minutes.

If the time delay you set for suspend mode is greater than the delay set for standby mode, the computer enters

2-8 Dell Inspiron 3000 Reference and Troubleshooting Guide

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Contents 551&$1 7528%/6+227,1 Page Safety Instructions When Using Your ComputerWhen Removing or Installing Memory Modules Ergonomic Computing HabitsProtecting Against Electrostatic Discharge Viii Warranty and Return Policy Information PrefaceAbout This Guide Other Documents You May Need Notational ConventionsTypographical Conventions Examples autoexec.bat and c\windows Xii Contents Chapter Troubleshooting Your Computer Chapter Running the Dell Diagnostics Xvi Chapter Getting Help Xviii Appendix C Regulatory Notices Figures Dell Confidential Preliminary 2/4/98 Xxiv Xxv Xxvi Introduction Front View of the Portable ComputerHardware Features Back View of the Portable ComputerIntroduction Software Features Using the Power ButtonAccessing Online Documentation Available OptionsGetting Help Dell Inspiron 3000 Reference and Troubleshooting Guide Customizing System Features System UtilitiesSetup Program Accessing the Setup ProgramMain Menu Options Quiet Boot System TimeSystem Date Floppy DriveSystem Memory Extended MemorySystem Devices Menu Options PS/2 Mouse IDE ControllerFDD Controller CD-ROM Drive SpeedAudio Security Menu OptionsSystem Password Set System PasswordPassword on Boot Power Menu OptionsPower Management Mode Smart CPU ModeStandby Time-Out Suspend Time-OutSuspend Mode Boot Menu OptionsResume on Modem Ring Resume on Time of DayBoot Menu of Setup Program Exit Menu OptionsReinstalling Utilities and Drivers Reinstalling Video Drivers Click the Settings tab Click the Advanced Properties buttonDouble-click the Display icon Adapter Type box, click the Change ButtonReinstalling Touch Pad Drivers Reinstalling Audio DriversReinstalling the Soft Wavetable Reinstalling Infrared DriversReinstalling the System User’s Guide Click the Service and Support iconWhen prompted, save the file to your hard-disk drive Click Technical Information, and then click DocumentationTroubleshooting Your Computer Backing Up Your FilesBasic Checks Is your computer wet or damaged?Checking Connections Did you receive a system message or beep code?Look and Listen Checking an Optional DeviceSetup Options Boot Routine IndicationsSystem Error Messages Messages and CodesFaulty Ter 5, Getting Help System Beep Codes CmosBeep Codes Finding Software Solutions Installing and Configuring SoftwareUsing Software Error MessagesInput Errors Memory-Resident ProgramsProgram Conflicts Avoiding Interrupt Assignment ConflictsTroubleshooting Procedures Troubleshooting a Wet ComputerTroubleshooting a Damaged Computer Troubleshooting a Power Failure Total Power Failure When Using the AC AdapterTotal Power Failure When Using a Battery Is the battery status indicator blinking? Yes. Go to stepUse the AC adapter to fully charge the battery Call Dell for technical assistanceNo Power to a Part of the Computer Troubleshooting the Diskette DriveTroubleshooting the CD-ROM Drive Does the computer display a drive error message?Troubleshooting the Hard-Disk Drive Troubleshooting an External Keyboard Does the computer recognize the external keyboard?Troubleshooting Memory Troubleshooting the Built-In DisplayTroubleshooting an External Monitor Is an external monitor connected to the computer?Troubleshooting the Serial and Parallel Ports Troubleshooting the Basic I/O FunctionsTroubleshooting a Parallel Printer Troubleshooting a Serial I/O DeviceChange the necessary statements in the start-up files Attempt another print operation on the parallel printerTroubleshooting the Infrared Port Troubleshooting the Touch PadTroubleshooting Audio Functions Dell Inspiron 3000 Reference and Troubleshooting Guide Running the Dell Diagnostics Features of the Dell DiagnosticsWhen to Use the Dell Diagnostics Before You Start Testing Starting the Dell DiagnosticsInstall a CD-ROM drive in the options bay Completing the Dell Diagnostics How to Use the Dell DiagnosticsConfirming the System Configuration Information How to Use the Menu Main Menu OptionsRun SelectOptions Maximum Errors Allowed Number of Times to Repeat TestsPause for User Response Option ParametersOutput Device for Error Messages Output Device for Status MessagesTest Limits Tests in the Dell Diagnostics AboutKey-Help QuitDell Diagnostics Tests RAMDell Diagnostics Tests Error Messages RAM Test GroupSystem Set Test Group Video Test Group Why Run a Video Test? Why Run a Keyboard Test?Keyboard Test Group Why Run the Mouse Test? Mouse TestDiskette Drives Test Group Why Run a Diskette Drives Test? Why Run a Hard-Disk Drives Test?Hard-Disk Drives Non-SCSI Test Group Why Run an IDE CD ROM Drives Test? IDE CD ROM Drives Test GroupWhy Run a Serial/Infrared Ports Test? Why Run a Parallel Ports Test?Serial/Infrared Ports Test Group Parallel Ports Test GroupWhy Run an Audio Test? Audio Test GroupDell Inspiron 3000 Reference and Troubleshooting Guide Run the diagnostics for your Dell computer Getting HelpTechnical Assistance Review the Dell Q&AHelp Tools Help ToolsReference and Troubleshooting Guide Commercial Online ServiceDell Diagnostics Program AutoTech ServiceTechFax Service Technical Support ServiceTechConnect BBS Automated Order-Status SystemProblems With Your Order Returning Items for Warranty Repair or CreditProduct Information Before You CallDiagnostics Checklist Diagnostics ChecklistDell Contact Numbers 1344International Dialing Codes Dell Contact Numbers AustraliaAustria BelgiumBrunei CanadaChile ChinaDenmark FinlandFrance GermanyIreland ItalyJapan KoreaLatin America LuxembourgMacau MalaysiaMexico NetherlandsNew Zealand NorwaySingapore South AfricaSoutheast Asian Pacific CountriesSwitzerland TaiwanThailand Technical Specifications Table A-1. Technical SpecificationsSdram Audio Display XGA Touch Pad Table A-1. Technical Specifications AC Adapter Environmental Computer Diagnostic Video Tests Text Mode Character TestVideo Memory Test Video Hardware TestCharacter Attributes Subtest 80 x Character Set Subtest 80 xCharacter Attributes Subtest 40 x Character Set Subtest 40 xText Mode Color Test Color Attributes Subtest 80 xTable B-1. Color Attributes Text Mode Pages Test Graphics Mode TestColor Palettes Test Solid Colors Test Regulatory Notices FCC Class B Notice U.S. OnlyModem Requirements IC Notice Canada OnlyEN 55022 Compliance Czech Republic Only CE NoticeCanadian Modem Requirements Vcci Notices Japan Only Korean Regulatory NoticePolish Center for Testing and Certification Notice 8ZNBHBOJB 1PMTLJFHP$FOUSVNNOM 024 Information Mexico Only Limited One-Year Warranty U.S. and Canada Only Warranties and Return PolicyLimited Three-Year Warranty U.S. and Canada Only Coverage During Year OneCoverage During Years Two and Three GeneralTotal Satisfaction Return Policy U.S. and Canada Only Index Dell Inspiron 3000 Reference and Troubleshooting Guide Help tools TechFax service, 5-4 user’s documentation Dell Inspiron 3000 Reference and Troubleshooting Guide Post Dell Inspiron 3000 Reference and Troubleshooting Guide Index XGA display Dell Information Development File Names &
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