2GB Memory Upgrade for HP Compaq Business Notebook NX7300, NX7400 DDR2 PC2-5300 667MHz 200 pin SODIMM RAM (PARTS-QUICK Brand) at Amazon.com
2GB RAM Memory for Compaq HP Business Notebooks Business Notebook nx7300 (Intel 945GM Chipset) Black Diamond Memory Module DDR2 SO-DIMM 200pin PC2-5300 667MHz Upgrade System Specific Memory - Newegg.com
CMS 2GB (1X2GB) DDR2 5300 667MHZ NON ECC SODIMM Memory Ram Compatible with HP/Compaq Business Notebook Nx7300, Nx7400, Nx8420 - A38 - Walmart.com
HP Compaq nc8430 RAM Replacement - iFixit Repair Guide
NeweggBusiness - HP Compaq Laptop nx Series Intel Celeron M 430 (1.73GHz) 512MB Memory 80GB HDD Intel GMA 950 15.4" Windows XP Home nx7300 (RM131UT#ABA)
HP Compaq nx7300 15.4" - Intel Celeron M 430 1.70GHz 1GB RAM - NO HDD NO OS | eBay