74 Solv ing Pr oble m sw w w . d e l l . c o m | s u p p o r t . d e l l . c o m NOTICE: Do not use an AC adapter rated under 70 W or a battery ratedunder 3600 mAh in this computer. To do so will cause indeterminate results,including data loss and/or immediate system shutdown. Using one of theselower-powered components will cause a SYSTEM CONFIGURATION ERRORmessage to appear.Docking Power ConsiderationsHINT: If you want toupgrade the AC adapterfor an existing Delldocking device, you canpurchase an additional90-W AC adapter fromDell.The 4400-mAh battery supplied with the computer is not designed tosupport both the computer and a docking device. For optimum systemperformance, always use the 90-W AC adapter (with or without a batteryinstalled) when using the computer in a docking device. You can identifythe 90-W adapter by the lighter-gray tip on the connector that plugs intothe computer or docking device.Using a 70-W AC adapter will cause the computer to run in reduced-performance mode and may display an AC adapter WARNING message.Docking While the Computer Is RunningTo accommodate the initial power surge when connecting to a dockingdevice with the computer running in normal (non-power conservation)mode, a 90- or 70-W AC adapter and at least one battery (a 4400- or3800-mAh battery) must be installed in the computer. The computer willthen run in either full-performance or reduced-performance mode,depending on the battery/AC adapter combination installed.AC Power Loss While the Computer Is DockedIf a computer loses AC power while docked, the computer immediately goesinto low-performance mode and displays an appropriate WARNING message.Start-Up Error MessagesO P E R A T I N G S Y S T E M N O T F O U N D — Contact Dell for technical assistance(see page 124).I N S E R T B O O T A B L E M E D I A — The operating system is trying to boot to anonbootable floppy disk or CD. Insert a bootable floppy disk or CD.1H018bk3.book Page 74 Monday, October 14, 2002 2:26 PM
