Troubleshooting and repair of Dell OptiPlex 780 desktop PC

This video shows the complete teardown and replacement of a faulty power supply in Dell OptiPlex 780 "DT" desktop PC.  Also discuss additional troubleshooting and repair tips, hardware upgrades, and BIOS optimization.

The steps in this video are also applicable to most OptiPlex 745, 755, and 760 series PC's.

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