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74 Solving Problems
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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
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.
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
OPERATING SYSTEM NOT FOUND — Contact Dell for technical assistance
(see page 124).
INSERT BOOTABLE MEDIA — The operating system is trying to boot to a
nonbootable floppy disk or CD. Insert a bootable floppy disk or CD.
1H018bk3.book Page 74 Monday, October 14, 2002 2:26 PM