Compaq Presario SR5510F Athlon 64 X2 5000+ 2.6GHz 2GB 500GB DVD&plusmn;RW Vista Home Premium Compaq Presario SR5510F Athlon 64 X2 5000 2.6 GHz Desktop PC General Features: Microsoft Windows Vista Home Premium pre-installed w/COA AMD Athlon 64 X2 5000 2.6 GHz dual-core processor nVIDIA nForce 430 Chipset 2 GB DDR2 SDRAM 500 GB SATA hard drive DVD RW drive with LightScribe Technology No floppy drive NVIDIA GeForce 6150 SE video