Dell OptiPlex 780 SFF LGA 775 Q45 Motherboard 3NVJ6 + Core 2 Duo E8400 3GHz CPU - The620Guy.com
Dell Optiplex 780 SFF CPU Upgrade Tutorial - YouTube
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optiplex 780 gaming - Dell Community
optiplex 780 gaming - Dell Community
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Best gpu using Dell optiplex 780/w C2D 3.0Ghz ,8GB Ram,800 watt PS | TechPowerUp Forums
Restored Dell Optiplex 780 Small Form Factor Desktop PC with Intel Core 2 Duo Processor, 8GB Memory, 1TB Hard Drive and Windows 10 Pro (Monitor Not Included) (Refurbished) - Walmart.com