A-Tech 8GB Kit (4 x 2GB) DDR2 800MHz PC2-6400 Non-ECC DIMM for HP Compaq DC Series Desktop dc5800 dc5850 - RAM Memory Modules at Amazon.com
8GB (2 X 4GB) Memory for HP Business Desktop dc7900 / dc7900e SFF/CMT/MT DDR2 800MHz PC2-6400 240 pin Desktop DIMM RAM (PARTS-QUICK Brand) at Amazon.com
8GB 2x 4GB DDR2 PC2-6400 800MHz 200 pin SODIMM Laptop Memory RAM for HP Pavilion Entertainment Notebook dv7 1200 1400 Series (PARTS-QUICK BRAND) at Amazon.com
DDR2 RAM 8GB (2 X 4GB) 240 PIN 800Mhz AMD DIMM Desktop Memory 1.8V at Amazon .com