Genuine Dell CT017 WG885 WJ668 Dimension 9200, XPS 410 Desktop DT Intel P965 Express Socket LGA755 DDR2 SDRAM Motherboard Main Logic System Board Compatible Part Numbers: CT017, WG885, JH484, WJ668 Chipset Intel P965 Express | Supported Processor 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 | 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