Tried upgrading optiplex 780 ram, wont turn on - Dell Community
Solved: 780, is there a better CPU? - Dell Community
2GB Memory Upgrade for Dell Optiplex 780 DT/MT/SFF DDR3 PC3-10600 1333MHz DIMM Non-ECC Desktop RAM (PARTS-QUICK Brand) at Amazon.com
Refurbished: Dell 3Nvj6 System Board For Optiplex 780 Sff - Newegg.com
Almost maxed out salvaged Optiplex 780 SFF : r/pcmods
Refurbished 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) - Walmart.com
Dell Optiplex 780 to replace my parents old pentium powered Inspiron. All I added was RAM and an SSD, but it makes a great family PC. : r/SleepingOptiplex
Dell OptiPlex 780 SFF/Core 2 Duo E8600 @ 3.33 GHz/DVD-RW
Dell Optiplex 780 SFF Intel Chipset Lga775 Motherboard 03NVJ6 With CPU SLAFZ for sale online | eBay