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Refurbished Dell OptiPlex 780-T Desktop PC with Intel Core 2 Duo Processor, 8GB Memory, 2TB Hard Drive and Windows 10 Pro Monitor Not Included (D780C2D8GB2TBW10Pro)
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Dell Optiplex 780 SFF Socket 775 Motherboard System Board 3NVJ6 03NVJ6 HDMI DP : Amazon.ca: Electronics
OptiPlex 780 - Steady orange power button light + numbers 1 and 2 blink every 1.5-2 seconds. - Dell Community
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