Product Detail HP ms6000 Core 2 Quad Q9500 2.83 GHz Desktop PC General Features: Desktop Form Factor No Operating System! Intel Core 2 Quad Q9500 2.83 GHz Quad-core processor 6 GB DDR3 RAM (supports up to 8 GB) 500 GB SATA hard drive DVD RW DL drive with LightScribe technology No floppy drive Intel Graphics Media Accelerator 4500 Integrated High Definition audio with Realtek ALC261 codec . The "HP ms6000 Core 2 Quad Q9500 2.83GHz 6GB 500GB DVD±RW No Operating System" is best product for you. We recommended HP ms6000 Core 2 Quad Q9500 2.83GHz 6GB 500GB DVD±RW No Operating System