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Dell OptiPlex 990 Mini-Tower - Page 71

Dell OptiPlex 990 Mini-Tower
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If the problem persists, the system board is faulty.
LED
Power Button
Problem Description A possible coin cell battery failure has occurred.
Troubleshooting Steps Remove the coin cell battery for one minute, reinstall the
battery, and restart.
LED
Power Button
Problem Description A possible processor failure has occurred.
Troubleshooting Steps Re-seat the processor.
LED
Power Button
Problem Description Memory modules are detected, but a memory failure has
occurred.
Troubleshooting
Steps
If two or more memory modules are installed, remove
the modules, then re-install one module and re-start
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.
71

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