w w w . d e l l . c o m s u p p o r t . d e l l . c o m

HINT: If you want to upgrade the AC adapter for an existing Dell docking device, you can purchase an additional 90-W AC adapter from Dell.

74Solving Problems

NOTICE: Do not use an AC adapter rated under 70 W or a battery rated under 3600 mAh in this computer. To do so will cause indeterminate results, including data loss and/or immediate system shutdown. Using one of these lower-powered components will cause a SYSTEM CONFIGURATION ERROR message to appear.

Docking Power Considerations

The 4400-mAh battery supplied with the computer is not designed to support both the computer and a docking device. For optimum system performance, always use the 90-W AC adapter (with or without a battery installed) when using the computer in a docking device. You can identify the 90-W adapter by the lighter-gray tip on the connector that plugs into the 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 Running

To accommodate the initial power surge when connecting to a docking device with the computer running in normal (non-power conservation) mode, a 90- or 70-W AC adapter and at least one battery (a 4400- or

3800-mAh battery) must be installed in the computer. The computer will then run in either full-performance or reduced-performance mode, depending on the battery/AC adapter combination installed.

AC Power Loss While the Computer Is Docked

If a computer loses AC power while docked, the computer immediately goes into low-performance mode and displays an appropriate WARNING message.

Start-Up Error Messages

OP 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).

IN 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 a nonbootable floppy disk or CD. Insert a bootable floppy disk or CD.

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Dell 8200 owner manual Start-Up Error Messages, Docking Power Considerations, Docking While the Computer Is Running