Solved: Dell Optiplex 745 motherboard in Desktop case - Dell Community
Failed attempt to upgrade a DELL OptiPlex 745 USFF PC - YouTube
Restored Dell OptiPlex 745-SFF Desktop PC with Intel Core 2 Duo Processor, 4GB Memory, 1TB Hard Drive and Windows 10 Home (Monitor Not Included) (Refurbished) - Walmart.com