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Kingston 64GB 288-Pin DDR4 SDRAM ECC Registered DDR4 3200 (PC4 25600) Server ...
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NEMIX RAM MEM-DR464LE-LR26 64GB Replacement Memory for Supermicro
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M0VW4 - Dell Compatible 8GB PC4-19200 DDR4-2400Mhz 1Rx8 1.2v Non-ECC UDIMM
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370-AEVO - Dell Compatible 8GB PC4-25600 DDR4-3200Mhz 1Rx8 1.2v ECC Registered ...
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Crucial 32GB DDR4 3200 (PC4-25600) RDIMM CL22 Server Memory Module
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NEMIX RAM 16GB Replacement for Samsung M393B2G70BH0-CK0 DDR3-1600 ECC RDIMM ...
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MEM-DR316L-EV01-EU13 16GB Memory Compatible With Supermicro by NEMIX RAM
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128GB 8x16GB DDR4-3200 PC4-25600 1Rx4 RDIMM ECC Registered Memory by Nemix Ram
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Kingston ValueRAM 1GB 184-Pin DDR SDRAM ECC Unbuffered DDR 400 (PC 3200) Server ...
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NEMIX RAM 64GB 8x8GB DDR4-2133 PC4-17000 1Rx4 ECC Registered Memory
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512GB Kit (4 x 128GB) DDR4-3200 PC4-25600 4Rx4 ECC Registered Memory for Servers / ...
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NEMIX RAM 128GB Replacement for Samsung M393AAG40M3B-CYF DDR4-2933 ECC RDIMM ...
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Supermicro (HMA84GR7DJR4N-XN) 32GB SDRAM ECC Registered DDR4 3200 (PC4-25600) ...
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Differences between Desktop and Server Memory

Introduction

While many servers are compatible with both desktop and server memory, it is advantageous to use server RAM. Compared to desktop memory, computer server RAM has two major features make it more suited for the needs of servers. Those two major features are error correction code (ECC) and registered memory. Below, NeweggBusiness will detail why those two features are important for servers.

Error Correction Code (ECC)

It can sometimes also be referred to as error-correcting code. ECC is a feature that checks for and corrects errors in memory automatically without requiring input from the processor, operating system, or user. When data is saved onto server RAM, an algorithm generates a code that describes the data. The code is then saved along with the data. When the data is retrieved later, the RAM runs the same algorithm again. If the newly calculated code does not match the code stored with the data, the RAM attempts to repair the data by comparing the codes.

ECC memory has slightly slower performance than non-ECC memory, but increases system stability and reduces the likelihood of data corruption. It is important to not install ECC memory and non-ECC memory in the same system, or use it with a motherboard that does not support ECC. Doing either will result in ECC being disabled and may cause system instability.

Registry

Registered memory is a type of memory that has a hardware register between the RAM chips and the system memory controller. The register is a component that delays the transfer of data between the RAM and system memory controller to increase stability. Without a hardware register, the stability of the server RAM would decrease as the amount of memory increases. Registered memory allows for more RAM to be put onto one module without sacrificing stability.

Registered memory has slower performance than non-registered memory but is available in larger capacities. In an environment where quantity is preferred over performance, registered memory is the best option.

Load-Reduced Dual In-line Memory Module (LR-DIMM or LRDIMM)

A type of memory that allows for even more RAM chips on one module than registered memory. LR-DIMM memory utilizes a buffer instead of a register to support the increased memory. On the upper end of the price spectrum, LR-DIMM memory is mostly used by organizations with larger IT budgets.