1GB PC2-6400S 200-Pin Laptop Memory: HP 598861-001 - 1GB (1x1GB) 800Mhz PC2-6400S 1.8V 200-Pin SODIMM Laptop Ram Memory Sale $14.00 Retail $39.00
HP 355926-001 - 512MB, 266MHz, 200-pin, PC2100 Small Outline Dual In-Line Memory Module (SODIMM) Part 355926-001 598861-001 Retail