• If available, install working memory of the same type
into your computer.
LED
Power Button
Problem Description
A possible hard drive failure has occurred.
Troubleshooting Steps
Re-seat all power and data cables.
LED
Power Button
Problem Description
A possible USB failure has occurred.
Troubleshooting Steps Re-install all USB devices and check all cable
connections.
LED
Power Button
Problem Description No memory modules are detected.
Troubleshooting
Steps
• If two or more memory modules are installed,
remove the modules (see your service manual), then
reinstall one module (see your service manual) and
restart the computer. If the computer starts normally,
continue to install additional memory modules (one
at a time) until you have identified a faulty module or
reinstalled all modules without error.
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Содержание OptiPlex 390 Mini-Tower
Страница 1: ...Dell OptiPlex 390 Mini Tower Owner s Manual Regulatory Model D12M Regulatory Type D12M001 ...
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Страница 36: ...8 Pry the power switch cable free 9 Slide the power switch cable out through the front of the computer 36 ...
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Страница 52: ...7 Remove the screws that secure the system board to the computer 52 ...
Страница 53: ...8 Slide the system board towards the front of the computer 53 ...
Страница 54: ...9 Carefully tilt the system board to 45 degrees and then lift the system board out of the computer 54 ...
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