Dell Optiplex 755 Alliance Envision Backup Control PC Lam Research Continuum | eBay
Solved: Optiplex 755 MT, modded E5450 CPU? - Dell Community
How to upgrade a DELL OptiPlex 755 USFF PC - YouTube
i found this dell optiplex 755 in a scrap yard perfectly functioning{came with side panel just have it off} its ungodly slow with only a single stick of ddr2 2gb ram and