Installing A Battery; Running The Dell Diagnostics - Dell Latitude D400 System Information Manual

If the computer is connected to a docking device (docked), undock it. See the
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documentation that came with your docking device for instructions.
Slide and hold the battery-bay latch release on the bottom of the computer, and then
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remove the battery from the bay.

Installing a Battery

Slide the battery into the bay until the latch release clicks.

Running the Dell Diagnostics

The Dell Diagnostics is located on a hidden Diagnostic utility partition on your hard drive.
NOTE: If your computer cannot display a screen image, connect an external monitor and press
to switch the video image to the monitor. If the external monitor does not display
a screen image, contact Dell.
Shut down the computer.
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If the computer is connected to a docking device (docked), undock it. See the
2
documentation that came with your docking device for instructions.
System Infor mation Guide
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