Memorii ddr2 4gb

1x 667mhz: https://www.datamemorysystems.com/parts/lenovo/41X4256/

1x 800mhz: https://hardverapro.hu/apro/kingmax_kldd48f-b8kw6_1gb_ddr2_800_mhz_pc2-6400/hsz_1-50.html

2x 800mhz: https://www.electrobyt.com/index.php?main_page=product_info&products_id=496#.X9ex-9gzaHs