Compaq Presario R3340US  Laptop (AMD Athlon 64 Processor 3200+ with PowerNow! Technology, 512 MB RAM, 80 GB Hard Drive, DVD+/-RW/CD-RW Drive) AMD Athlon 64 Processor 3200+ (2.0 GHz) with PowerNow! Technology 1MB L2 Cache 512MB of PC2700 DDR SDRAM 1 RAM Slot (occupied - 256MB of RAM is non-removable) RAM is upgradable to 1.2GB