Compaq Presario SR1320NX Desktop PC (AMD Sempron processor 3100+, 512 MB RAM, 80 GB Hard Drive, DVD/CD-RW Drive) (Discontinued by Manufacturer) An AMD Sempron 3100+ Processor 1.80GHz Integrated SIS Mirage2 Graphics with up to 128MB shared memory from available RAM. Open AGP slot available for upgrade Integrated audio 1 External and 1 internal drive bays available for expansion Up to 56K modem with RJ11 connector