CMS 8GB (2X4GB) DDR2 6400 800MHZ Non ECC SODIMM Memory Ram Upgrade Compatible with Dell® Dell® Studio 15 (1555) Notebook Ddr2 - A41 at Amazon.com
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