8GB 4X2GB Dell OptiPlex 745 DDR2 PC2-5300 Memory at Amazon.com
2GB [1x2GB] DDR2-800 PC2-6400 Memory RAM for Dell OptiPlex 745 Systems at Amazon.com
CMS 8GB (4X2GB) DDR2 6400 800MHZ Non ECC DIMM Memory Ram Upgrade Compatible with Dell® Optiplex 745, 745C Series Desktop - A92 at Amazon.com
Refurbished: Dell Optiplex 745 Mini Tower Pentium D Dual Core, 3.4 Ghz, 500 Gb Hard Drive, 4 Gb Ram, Windows 7 Home Premium - Newegg.com
OFFTEK 2GB Replacement Memory RAM Upgrade for Dell OptiPlex 745 (Desktop MiniTower and Small Form Factor) (DDR2-5300 - Non-ECC) Desktop Memory at Amazon.com
Solved: Supported memory configuration for Dell Optiplex 745? - Dell Community
Dell Optiplex 745 - Business Machines Center
OptiPlex 745 Small Form Factor ( SFF) Removal Guide for the Memory, Heatsink, Power Supply and System Fan | Dell New Zealand
Dell Optiplex 745 CPU Upgrade and Intel Virtualization Technology - YouTube