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8GB DDR4-3200 PC4-25600 RDIMM Memory for Supermicro H11SSL-NC AMD EPYC by Nemix ...
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NEMIX RAM 64GB Replacement for Samsung M393A8K40B2B-CTC DDR4-2400 ECC RDIMM ...
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MEM-DR416L-CL01-ER32 16GB Memory Compatible With Supermicro by NEMIX RAM
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NEMIX RAM 16GB Replacement for Samsung M393A2K43DB3-CWE DDR4-3200 ECC RDIMM ...
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NEMIX RAM 32GB 4x8GB DDR3-1600 PC3-12800 2Rx8 1.35V ECC Unbuffered Memory
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NEMIX RAM 16GB 2x8GB DDR3-1600 PC3-12800 2Rx8 1.35V ECC Unbuffered Memory
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16GB DDR4-3200 PC4-25600 RDIMM 1Rx4 Memory for Supermicro H11SSL-NC AMD EPYC by ...
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NEMIX RAM 32GB Replacement for Samsung M391A4G43AB1-CVF DDR4-2933 ECC UDIMM ...
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HMA82GU7CJR8N-VK - SK Hynix 1x 16GB DDR4-2666 ECC UDIMM PC4-21300V-E Dual Rank ...
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840756-191 - HP Compatible 16GB PC4-21300 DDR4-2666MHz 2Rx8 1.2V ECC Registered ...
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Kingston 16GB 288-Pin DDR4 SDRAM ECC Unbuffered DDR4 3200 (PC4 25600) Server ...
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Synology - D4EC-2666-16G - Synology 16GB DDR4 SDRAM Memory Module - For NAS Server - ...
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SAMSUNG DIMM 32GB 288-Pin DDR4 SDRAM ECC LRD Load Reduced DDR4 2133 (PC4 17000) ...
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Kingston Premier Series 32GB 288-Pin DDR4 SDRAM ECC Registered DDR4 3200 (PC4 25600) ...
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Black Diamond Memory 64GB (2 x 32GB) 240-Pin DDR3 SDRAM ECC Load Reduced DDR3 1866 ...
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Kingston 32GB 288-Pin DDR4 SDRAM ECC Unbuffered DDR4 3200 (PC4 25600) Server ...
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Black Diamond Memory 32GB (2 x 16GB) 288-Pin DDR4 SDRAM ECC Registered DDR4 2133 ...
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Black Diamond Memory 64GB (2 x 32GB) 240-Pin DDR3 SDRAM ECC Registered DDR3 1066 ...
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MICRON 64GB DDR4 3200 2Rx4 CL22 RDIMM Server Memory Module - ...
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Micron 64GB 288-Pin DDR4 SDRAM Registered DDR4 3200 (PC4 25600) Server Memory Model ...
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Black Diamond Memory 32GB 240-Pin DDR3 SDRAM ECC Load Reduced DDR3 1866 (PC3 ...
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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.