Form factor: XL-ATX mm x mm 12 mounting holes. CPU socket type: Socket Chipset: Intel X79 Express. Memory: 8 DIMM slotsCPU socket type: Socket Please download and execute the file in USB pen drive only. System will restart several times to update ME firmware after updated system BIOS. Please DO. MSI pulls out all the stops to create the Big Bang XPower II. A true enthusiast class motherboard designed for over the top enthusiast rigs.