parts-quick 8GB (2 X 4GB) Memory for Dell OptiPlex 960 DDR2 800MHz PC2-6400 240 pin Desktop DIMM RAM at Amazon.com
8GB 2 X 4GB DDR2 PC2-6400 800MHZ 240Pin AMD DIMM Hgih Density Desktop Memory at Amazon.com
Bewinner 1PCS Memory RAM DDR2 4GB, 4GB Large Capacity DDR2 800Mhz Memory Module,Designed for AMD,Adopting 240Pin to Achieve High Anti-Interference and Antistatic Properties,Plug and Play at Amazon.com
Crucial 4GB DDR2-667MHz (PC2-5300) CL5 ECC RDIMM DR 240-pin Server Memory CT51272AB667 at Amazon.com