Dell PowerEdge R720 Owner's Manual - Page 47
Removing Memory Modules, A1, A2, A3, A4, A5, A6, A7, A8, A9 - end of support
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System Capacity (in GB) DIMM Size (in GB) Number of DIMMs 256 16 16 384 16 24 32 12 512 32 16 768 32 24 DIMM Rank, Organization, and Frequency 2R, x4, 1600 MT/s 2R, x4, 1333 MT/s, 2R, x4, 1600 MT/s, 2R, x4, 1333 MT/s 4R, x4, 1333 MT/s 4R, x4, 1066 MT/s 4R, x4, 1333 MT/s LRDIMM, x4, 1333 MT/s DIMM Slot Population B1, B2, B3, B4, B5, B6 A1, A2, A3, A4, A5, A6, A7, A8 B1, B2, B3, B4, B5, B6, B7, B8 A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12 B1, B2, B3, B4, B5, B6, B7, B8, B9, B10, B11, B12 A1, A2, A3, A4, A5, A6 B1, B2, B3, B4, B5, B6 A1, A2, A3, A4, A5, A6, A7, A8 B1, B2, B3, B4, B5, B6, B7, B8 A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12 B1, B2, B3, B4, B5, B6, B7, B8, B9, B10, B11, B12 Removing Memory Modules WARNING: The memory modules are hot to the touch for some time after the system has been powered down. Allow time for the memory modules to cool before handling them. Handle the memory modules by the card edges and avoid touching the components on the memory module. CAUTION: Many repairs may only be done by a certified service technician. You should only perform troubleshooting and simple repairs as authorized in your product documentation, or as directed by the online or telephone service and support team. Damage due to servicing that is not authorized by Dell is not covered by your warranty. Read and follow the safety instructions that came with the product. CAUTION: To ensure proper system cooling, memory-module blanks must be installed in any memory socket that is not occupied. Remove memory-module blanks only if you intend to install memory in those sockets. 1. Turn off the system, including any attached peripherals, and disconnect the system from the electrical outlet and peripherals. 2. Open the system. 3. Remove the cooling shroud. 4. Locate the appropriate memory module socket(s). CAUTION: Handle each memory module only on either card edge, making sure not to touch the middle of the memory module. 5. Press down and out on the ejectors on each end of the socket until the memory module pops out of the socket. 47