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Supermicro 16GB 288-Pin DDR4 2666 (PC4 21300) Server Memory ...
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32GB RDIMM Memory for HP ProLiant DL580 G9 Server DDR4-2933 PC4-23400 CL21 ECC ...
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For Dell SNPDFK3YC/16G AA138422 16 GB 288-Pin DDR4 ECC RDIMM RAM for PowerEdge T430 ...
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Micron 32GB 288-Pin DDR4 SDRAM Registered DDR4 2933 (PC4 23400) Server Memory Model ...
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Crucial 32GB DDR4 2666 (PC4-21300) SDRAM Server Memory ECC Registered
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NEMIX RAM 16GB 2x8GB DDR4-2400 PC4-19200 1Rx8 ECC Unbuffered Memory
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Supermicro Certified MEM-DR416L-HL01-UN24 Hynix 16GB DDR4-2400 Non-ECC UDIMM
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Supermicro Certified MEM-DR480L-CL01-EU21 Micron 8GB DDR4-2133 2RX8 ECC UDIMM ...
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SK Hynix HMA82GU7DJR8N-VK 16GB 2RX8 PC4-2666V ECC UDIMM FOR Server
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16GB 2x8GB Memory DDR3 PC3-10600 ECC REG Comp to SuperMicro ...
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Hynix 16GB (2x 8GB) DDR2-667MHz Server Memory RAM PC2-5300F ECC FB-DIMM
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NEMIX RAM 16GB 2x8GB DDR3-1600 PC3-12800 2Rx8 1.35V ECC Unbuffered Memory
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16GB DDR4 2666 ECC UDIMM (Synology D4EC-2666-16G Equivalent) Server Memory RAM by ...
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SK Hynix HMA81GR7CJR8N-XN 8GB DDR4 1RX8 PC4-3200AA ECC For server
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Crucial 32GB 288-Pin SDRAM ECC LR DIMM DDR4 2666 (PC4 21300) Server Memory Model ...
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Supermicro Certified MEM-DR480L-CL03-ER26 Micron 8GB DDR4-2666 ECC RDIMM
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Micron MT18JDF51272PDZ-1G4D1-4G-1333-2RX8-VLP-REG
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Micron 16GB DDR4 3200 ECC/REG CL22 1Rx8 1.2V SDRAM RDIMM Server Memory Module - ...
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SK Hynix HMA451U7AFR8N-TF DDR4 4GB 2133 UDIMM For Server
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Micron 64GB 288-Pin DDR4 SDRAM Registered DDR4 2933 (PC4 23400) Server Memory Model ...
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Micron 8GB DDR4 2933 RDIMM 1RX8 CL21 1.2V Server Memory Module ...
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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.