PC3L-12800L 128GB (4x32GB) 1600MHz DDR3 LR ECC RG Memory Dell PowerEdge R720xd

The system’s memory specification:
The R720 and R720xd servers support flexible memory configurations ranging from capacities of 4GB (minimum) to 32GB (maximum). The R720 and R720xd support up to 12 DIMMs per processor (up to 24 DIMMs in a dual-processor configuration). Each server has four memory channels per processor, with each channel supporting up to three DIMMs. Both systems support a flexible memory configuration, according to the following basic rules:
? Speed: If DIMMs of different speeds are mixed, all channels across all processors operate at the slowest DIMM’s common frequency.
? DIMM type: Only one type of DIMM is allowed per system: UDIMM, RDIMM or LRDIMM. These types cannot be mixed.
The following additional memory-population guidelines apply to the R720 and R720xd:
? Up to two quad-rank (QR) DIMMs and up to three dual-rank (DR) or single-rank (SR) DIMMs may be populated per channel. Although an LRDIMM is physically a QR DIMM, logic on the LRDIMM can make it appear as a DR DIMM to the system, allowing up to three LDRIMMs 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 are mixed with SR DIMMs, DR DIMMS should be placed in the lowest DIMM slots, followed by the SR DIMMs.

Product Specifications
Memory Kit Description 128GB (4x32GB) PC3L-12800L 1600MHz DDR3 LR ECC RG Memory Dell PowerEdge R720xd
Total Memory Capacity 128GB
Kit Breakdown 4 X 32GB
Technology DDR3 ECC Registered Memory
Speed 1600MHz
Voltage 1.35V