Genuine Dell R1203 VN3TR JVJ59 For Precision M6500 Motherboard Logic Board Main System Board With Base Plastics Mobile Intel PM55 Chipset Motherboard Part Numbers: VN3TR, GNN2M, 4KMC9 Base Assembly Part Number: R1203 Plastic Part Numbers: 3JW5K , JVJ59 Genuine Dell Precision M6500 Motherboard with Base Plastics, Dell Part Numbers: VN3TR, GNN2M, 4KMC9, Base Assembly Part Number: R1203, Plastic Part Numbers: 3JW5K , JVJ59 Chipset: Mobile Intel PM55 Chipset, Supported Processor: Intel Core i5-520M Dual Core, Intel Core i5-540M Dual Core Intel Core i7-620M Dual Core, Intel Core i7-740QM Quad Core, Intel Core i7-840QM Quad Core, Intel Core i7-940XM Quad Core Extreme Supported Memory: DDR3 1333 MHz or 1600 MHz four SODIMM connectors NOTE: Intel Core i5/i7 dual-core processors support 1600 MHz and 1333 MHz memory modules, but the memory will operate at 1067 MHz. NOTE: Intel Core i7-920XM Quad-Core processor supports memory frequency up to 1600 MHz. All other Core i7 Quad-Core processors support memory frequency up to 1333 MHz only, even if memory modules of higher frequency are installed Video: discrete PCI-Express x16 Gen 2 capable (NOT INCLUDED), Audio: two-channel Intel High Definition Audio Peripheral Connections: microphone connector, stereo headphone/external speaker connector, 15-pin video connector dual-mode DisplayPort connector, RJ-45 connector, one USB 2.0-compliant connector one eSATA/USB 2.0-compliant connector two USB 3.0-compliant connectors,8-in-1 memory card reader supporting SD, SDIO, Hi-density SD, Hi-capacity SD, XD, MS, MS-Pro, MMC, Mini-MMC, and MMC+ cards, two full-height mini card slots two half-height mini-card slots, supports Type I and Type II cards, Texas Instruments PCI 8412 controller, powered 6-pin connector, 144-pin docking connector