Systemcapacity (inGB)DIMM size (inGB) Number ofDIMMs DIMM rank,organization, andfrequencyDIMM slot population64 8 LRDIMM, 4R, x4, 2133MT/sA1, A2, A3, A4, B1, B2, B3, B4768 32 24 LRDIMM, 4R, x4, 1866MT/sRDIMM, 2R, x4, 1866MT/sA1, A2, A3, A4, A5, A6, A7, A8,A9, A10, A11, A12, B1, B2, B3, B4,B5, B6, B7, B8, B9, B10, B11, B1264 12 LRDIMM, 4R, x4, 2133MT/sA1, A2, A3, A4, A5, A6, A7, A8,A9, A10, A11, A12, B1, B2, B3, B4,B5, B61536 64 24 LRDIMM, 4R, x4, 1866MT/sA1, A2, A3, A4, A5, A6, A7, A8,A9, A10, A11, A12, B1, B2, B3, B4,B5, B6, B7, B8, B9, B10, B11, B12Removing memory modulesPrerequisitesCAUTION: 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 touch for some time after the system has beenpowered down. Allow the memory modules to cool before handling them. Handle the memorymodules by the card edges and avoid touching the components or metallic contacts on thememory 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.65
