Solved: 390, CPU upgrades? - Page 4 - Dell Community
Dell Optiplex 390 MT Intel Core i3-2100 3.10GHz CPU 4GB RAM No HDD No OS | eBay
2GB Memory Upgrade for Dell Optiplex 390 DDR3 PC3-10600 1333MHz DIMM Non-ECC Desktop RAM (PARTS-QUICK Brand) at Amazon.com
Amazon.com: Dell Optiplex 390 Tower Business High Performance Desktop Computer PC Wi-Fi (Intel Quad-Core i5-2400 up to 3.4GHz, 8GB DDR3 Memory, 2TB HDD, DVD, Windows 10 Pro 64-bit HDMI (Renewedd) : Electronics
Dell Optiplex 390 MT Intel Core i3-2100, 4GB RAM, 120GB SSD, Windows 10 Pro | eBay