2-8MS-6734 M-ATX MainboardDIMM Module CombinationInstall at least one DIMM module on the slots. You can install either single- or double-sided modules in any order to meet your own needs.Memory modules can be installed in any combination as follows:Installing DDR Modules1.The DDR DIMM has only one notch on the center of module. The module will onlyfit in the right orientation.2.Insert the DIMM memory module vertically into the DIMM slot. Then push it in untilthe golden finger on the memory module is deeply inserted in the socket.3.The plastic clip at each side of the DIMM slot will automatically close.MSI Reminds You...You can barely see the golden finger if the module is properlyinserted in the socket.VoltNotchS: Single SideD: Double SideSlotMemory ModuleTotal MemoryDIMM 1DDR S/D64MB~1GB(Bank 0 & 1)DIMM 2DDR S/D64MB~1GB(Bank 2 & 3)Maximum System Memory Suppported64MB~2GB