Dell PowerEdge R620 Technical Manual

Also see for PowerEdge R620: Glossary Owner's manual Owner's manual Portfolio guide Installation, maintenance and troubleshooting manual

Dell PowerEdge R620 Technical Manual Manual pdf 19 page image

Table 9 lists the DIMMs supported by the R620. For the latest information on supported memory,visit Dell.com.Capacity(GB)Speed(MT/s)Type Ranks perDIMMDatawidthSDDC support Voltage2 1333 RDIMM 1 x8 Advanced ECC 1.352 1333 UDIMM 1 x8 Advanced ECC 1.352 1600 RDIMM 1 x8 Advanced ECC 1.54 1333 RDIMM 2 x8 Advanced ECC 1.354 1333 RDIMM 1 x4 All modes 1.354 1333 UDIMM 2 x8 Advanced ECC 1.354 1600 RDIMM 2 x8 Advanced ECC 1.58 1333 RDIMM 2 x4 All modes 1.358 1600 RDIMM 2 x4 All modes 1.516 1066 RDIMM 4 x4 All modes 1.3516 1333 RDIMM 2 x4 All modes 1.3516 1600 RDIMM 2 x4 All modes 1.532 1333 LRDIMM 4 x4 All modes 1.3532 1333 RDIMM 4 x4 All modes 1.35Flexible memory configurations are supported on the R620, ranging from capacities of 2 GB(minimum) to 768 GB (maximum). The system supports up to 12 DIMMs per processor (up to 24DIMMs in a dual-processor configuration). The R620 has four memory channels per processor, witheach channel supporting up to three DIMMs.The R620 supports a flexible memory configuration, according to these basic rules: Speed: If DIMMs of different speeds are mixed, all channels across all processors operate at theslowest DIMM’s common frequency. DIMM type: Only one type of DIMM is allowed per system: UDIMM, RDIMM, or LRDIMM. Thesetypes cannot be mixed.The following additional memory population guidelines apply to the R620: Up to two quad-rank (QR) DIMMs and up to three dual-rank (DR) or single-rank (SR) DIMMs maybe populated per channel. DIMMs must be installed in each channel, starting with the DIMM farthest from the processor. DIMMs should be installed with largest rank count to smallest. For example, if DR DIMMS aremixed with SR DIMMs, DR DIMMS should be placed in the lowest DIMM slots, followed by the SRDIMMs.For more information on memory configuration, see theDell PowerEdge R620 Systems Owner’sManual on Support.Dell.com/Manuals.