Dell OptiPlex 390 Small Form Factor Owner's Manual page 72

If available, install working memory of the same type
. A possible hard drive failure has occurred
. Re-seat all power and data cables
Re-install all USB devices and check all cable
If two or more memory modules are installed,
remove the modules, then reinstall one module 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
. into your computer
. A possible USB failure has occurred
. No memory modules are detected
•
Problem Description
Troubleshooting Steps
Problem Description
Troubleshooting Steps
. connections
Problem Description
•
. error
LED
Power Button
LED
Power Button
LED
Power Button
Troubleshooting
Steps
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