This is a, Genuine Dell FM586 RN474 GN723 Version G33M03 For Inspiron 530 530s, Vostro 200 400, Systems Intel G33 Express DDR2 SDRAM Motherboard Logic Board Main Board Compatible Part Numbers: FM586, RN474, GN723, G33M03 Features/Specifications: Chipset: Intel G33 Express Supported Processors: Many Intel Core 2 Duo / Quad Processors - But not all Known to work: E2180, E4400, E6550, E6600, E2140, E2180, E6320, E6700, E4300, E6420, E4500, E6750, E2220, E8300, E4700, E2200, E8200, E8400, E8500, E4600, E6850, Celeron D420, D430, D440 Memory: Up to 4GB Dual-Channel DDR2 SDRAM Video: Integrated Intel Graphics Media Accelerator 3100 Audio: Integrated 7.1 Channel Audio Expansion Capabilities PCI: 2 Slots PCIe x1: 1 Slot PCIe x16 (Graphics): 1 Slots Peripheral Interfaces 1 DVI, VGA and 1 S-Video (with add-in PCI-Express video card) IEEE 1394 (optional): 1 - 6-pin serial connector 10 USB ports (4 Front, 4 back) + 2 internal 6 back-panel connectors for line-in, line-out, microphone, rear surround, side surround, two front-panel connectors for headphones/microphone, integrated 7.1 channel sound Integrated 10/100 network interface Motherboard Compatible Part Numbers: FM586, RN474, GN723, G33M03