Dell Dimension 9200 Mother System Main Board CT017 Chipset: Intel P965 Express, Supported Processors: Socket 775 800/1066 Mhz FSB, Intel Smithfield Pentium D, Intel Prescott Pentium 4, Intel Core 2 Duo, Intel Core 2 Quad Q6600 (Latest Bios Only) Supported Memory: 4x 533 / 667 / 800 MHz DDR2 SDRAM, 4 GB Max Total, Audio: 7.1 channel Sigmatel 9227 audio codec Video: PCI Express x16 Video Card Not Included, Expansion Capabilities: 3x PCI Slots, 1x PCI Express x1 Slot, 1x PCI Express x4 Slot (Fits x8), 1x PCI Express x16 Slot Peripheral Interfaces: 6x SATA Connector, 1x RJ45 Ethernet/LAN Port, 6x back-panel USB 2.0 compliant connectors, 6x back panel audio connectors, 1x S/PDIF Optical Out Audio Connector Motherboard Part Numbers: CT017, WG885, JH484, WJ668