Dell EMC PowerEdge R440 Installation And Service Manual

Table 21. Memory population rules (continued)Processor Configuration Memory population Memory population information● Optimizer population order isnot traditional for 8 and 14DIMM installations of dualprocessor.○ For 8 DIMMs: A1, A2, A4,A5, B1, B2, B4, B5○ For 14 DIMMs: A1, A2, A4,A5, A7, A8, A9, A10, B1, B2,B3, B4, B5, B6Mirroring population order A{1, 2, 3, 4, 5, 6}, B{1, 2, 3, 4,5, 6}Mirroring is supported with 6DIMM slots per processor.Single rank sparing populationorderA{1}, B{1}, A{2}, B{2}, A{3},B{3}...Populate in this order, odd amountper processor allowed. Requirestwo ranks or more per channel.Multi rank sparing populationorderA{1}, B{1}, A{2}, B{2}, A{3},B{3}...Populate in this order, odd amountper processor allowed. Requiresthree ranks or more per channel.Removing a memory modulePrerequisites1. Follow the safety guidelines listed in Safety instructions.2. Follow the procedure listed in Before working inside your system on page 26.3. If applicable, remove the air shroud.WARNING: Allow the memory modules to cool after you power off the system. Handle the memory modules bythe card edges and avoid touching the components or metallic contacts on the memory module.Steps1. Locate the appropriate memory module socket.CAUTION: Handle each memory module only by the card edges, ensuring not to touch the middle of thememory module or metallic contacts.2. Push the ejectors outward on both ends of the memory module socket to release the memory module from the socket.3. Lift and remove the memory module from the system.Figure 40. Removing a memory moduleInstalling and removing system components 51