SystemCapacity (inGB)DIMM Size (inGB) Number ofDIMMs DIMM Rank,Organization, andFrequencyDIMM Slot Population2R, x8, 1866 MT/s NOTE: 16 GB DIMMs mustbe installed in slotsnumbered A1, A2, A3, A4,B1, B2, B3, and B4 and 8GB DIMMs must beinstalled in slots A5, A6, A7,and A8.192 16 12 2R, x4, 2133 MT/s,2R, x4, 1866 MT/sA1, A2, A3, A4, A5, A6,A7,A8, B1,B2, B3, B4384 32 12 RDIMM, 2R, x4, 2133MT/sRDIMM, 2R, x4, 1866MT/sA1, A2, A3, A4, A5, A6,A7,A8, B1,B2, B3, B4Removing memory modulePrerequisitesCAUTION: Many repairs may only be done by a certified service technician. You should onlyperform troubleshooting and simple repairs as authorized in your product documentation, or asdirected by the online or telephone service and support team. Damage due to servicing that isnot authorized by Dell is not covered by your warranty. Read and follow the safety instructionsthat came with the product.1. Ensure that you read the Safety instructions.2. Follow the procedure listed in Before working inside your system.3. Remove the cooling shroud.WARNING: The memory modules are hot to the touch for some time after the system has beenpowered down. Allow time for the memory modules to cool before handling them. Handle thememory modules by the card edges and avoid touching the components or metallic contacts onthe memory module.CAUTION: To ensure proper system cooling, memory-module blanks must be installed in anymemory socket that is not occupied. Remove memory-module blanks only if you intend to installmemory modules in those sockets.Steps1. Locate the appropriate memory module socket.CAUTION: Handle each memory module only by the card edges, making sure not to touchthe middle of the memory module or metallic contacts.2. To release the memory module from the socket, simultaneously press the ejectors on both ends ofthe memory-module socket.59
