Ensuring Sufficient Power For Your Computer; Docking Power Considerations; Printer Problems - Dell Latitude ATG D620 User Manual

Troubleshooting: Dell Latitude ATG D620 User's Guide
Check the AC adapter —
ensure that the light is on.
Connect the computer directly to an electrical outlet —
strips, and the extension cable to verify that the computer turns on.
Eliminate possible interference —
appliances.
Adjust the power properties —
Reseat the memory modules —
reinstall the memory modules (see Memory).

Ensuring Sufficient Power for Your Computer

Your computer is designed to use a 65-W or 90-W AC adapter. However, for optimum system
performance, you should always use a 90-W adapter.
Using less-powerful AC adapters, including the 65-W AC adapter, will cause you to receive a WARNING
message.

Docking Power Considerations

Due to the extra power consumption when a computer is docked to the Dell D/Dock, normal computer
operation is not possible on battery power alone. Ensure that the AC adapter is connected to your
computer when the computer is docked to the Dell D/Dock.
Docking While the Computer Is Running
If a computer is connected to the Dell D/Dock or Dell D/Port while the computer is running, presence
of the docking device is ignored until the AC adapter is connected to the computer.
AC Power Loss While the Computer Is Docked
If a computer loses AC power while docked to the Dell D/Dock or Dell D/Port, the computer
immediately goes into low-performance mode.

Printer Problems

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Check the AC adapter cable connections. If the AC adapter has a light,
Turn off nearby fans, fluorescent lights, halogen lamps, or other
See Configuring Power Management
If the computer power light turns on but the display remains blank,
Bypass power protection devices, power
Settings.