MSI Master LS2 User Guide - Page 22

Hardware Setup Memory modules can be installed in any combination as follows: DIMM1 128MB~2GB 128MB~2GB DIMM2 128MB~2GB 128MB~2GB DIMM3 128MB~2GB 128MB~2GB DIMM4 128MB~2GB 128MB~2GB System Density 256MB~4GB 256MB~4GB 512MB~8GB MSI Reminds You... Make sure that you install memory modules of the same type and density on DDR DIMMs "in pairs" -- {DIMM1 & DIMM2} {DIMM3 & DIMM4}. Installing DDR Modules 1. The DDR DIMM has only one notch on the center of module. The module will only fit in the right orientation. 2. Insert the DIMM memory module vertically into the DIMM slot. Then push it in until the golden finger on the memory module is deeply inserted in the socket. MSI Reminds You... You can barely see the golden finger if the module is properly inserted in the socket. 3. The plastic clip at each side of the DIMM slot will automatically close. Volt Notch 2-7