8GB (4GBx2) Team High Performance Memory RAM Upgrade For Dell Studio 1555 (DDR2) Model Laptop. The Memory Kit comes with Life Time Warranty. at Amazon.com
Dell Studio 1555 Battery Replacement | Battery4Dell Canada
Dell Studio 1555 RAM Replacement - iFixit Repair Guide
Dell Studio 1555 RAM Replacement - iFixit Repair Guide
8GB 2X4GB Memory RAM for Dell Studio Laptop 1555 200pin 800MHz PC2-6400 DDR2 SO-DIMM Black Diamond Memory Module Upgrade - Newegg.com
CMS 8GB (2X4GB) DDR3 12800 1600MHz Non ECC SODIMM Memory Ram Upgrade Compatible with Dell® Studio 1555 (Ddr3) Only - A21 at Amazon.com