2GB 2X1GB RAM Memory for Compaq Presario A Series A900 CTO Black Diamond Memory Module DDR2 SO-DIMM 200pin PC2-5300 667MHz Upgrade - Walmart.com
8GB (4GBx2) Team High Performance Memory RAM Upgrade For HP - Compaq Presario CQ42-189TX CQ42-193TX CQ42-194TX CQ42-195TX Laptop. The Memory Kit comes with Life Time Warranty. at Amazon.com