2GB Memory for Compaq Presario Notebook CQ61-411WM DDR2 PC2-6400 800MHz SODIMM RAM Upgrade (PARTS-QUICK Brand) at Amazon.com
CMS 4GB (1X4GB) DDR2 6400 800MHZ Non ECC SODIMM Memory Ram Upgrade Compatible with Compaq Presario Cq56-219Wm Ddr2 Sodimm - A42 at Amazon.com
Amazon.com: A-Tech 4 GB de RAM para COMPAQ PRESARIO CQ56 | DDR3 1066MHz SODIMM PC3-8500 204-Pin módulo de actualización de memoria no ECC : Electrónica
Best Buy: Compaq Presario Laptop / AMD V-Series Processor / 15.6" Display / 2GB Memory / 250GB Hard Drive Basic Black CQ56-115DX