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Supermicro (M393A8G40AB2-CWE) 64GB SDRAM ECC Registered DDR4 3200 (PC4-25600) ...
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Supermicro (M393A8G40AB2-CWE) 64GB SDRAM ECC Registered DDR4 3200 (PC4-25600) ...
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Supermicro (HMA81GR7CJR8N-VK) 8GB SDRAM ECC Registered DDR4 2666 (PC4 21300) ...
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SuperMicro 8GB 288-Pin DDR4 SDRAM ECC Registered DDR4 3200 (PC4 25600) Server ...
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Supermicro (MTA36ASF4G72PZ-2G6E1) 32GB SDRAM ECC Registered DDR4 2666 (PC4 ...
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Kingston Premier Series 16GB 288-Pin DDR4 SDRAM ECC Unbuffered DDR4 3200 (PC4 ...
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Kingston 32GB DDR4 2666MHz 288pin DIMM ECC Reg Memory Module KSM26ED8/32ME
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Supermicro (MTA36ASF4G72PZ-2G9E2) 32GB SDRAM ECC Registered DDR4 2933 (PC4 ...
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SuperMicro (M393A8G40MB2-CVF) 64GB 288-Pin DDR4 SDRAM ECC Registered DDR4 2933 ...
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Kingston Premier Series 64GB 288-Pin DDR4 SDRAM ECC Registered DDR4 3200 (PC4 25600) ...
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Kingston ME KSM32ES8 8HD 8GB 3200MHz DDR4 ECC CL22 DIMM 1Rx8 Hynix D Retail
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Kingston ME KSM29ES8 8HD 8GB 2933MHz DDR4 ECC CL21 DIMM 1Rx8 Hynix D Retail
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32GB 3200MHZ DDR4 ECC CL22
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8GB 2Rx4 PC3L-12800R ECC REG Server Memory M393B1K70QB0-YK0
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HP 664695-001 4GB (1x4GB) DDR3 1333 (PC3 10600) ECC Unbuffered UDIMM Memory by ...
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NEMIX RAM 128GB 4x32GB DDR4-2400 PC4-19200 4Rx4 ECC Load Reduced Memory
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32GB DDR4-3200 PC4-25600 ECC Registered Memory for ASRock Rack EPYCD8-2T Board by ...
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16GB DDR4 2666 ECC UDIMM (Synology D4EC-2666-16G Equivalent) Server Memory RAM by ...
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Cisco UCS-MR-2X162RX-C 32GB (2 x 16GB) PC3L-10600 RDIMM Memory for Cisco UCS ...
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CPC7G - Dell Compatible 32GB PC4-19200 DDR4-2400Mhz 2Rx4 1.2v Registered RDIMM
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Supermicro (HMAA8GR7AJR4N-XN) 64GB SDRAM ECC Registered DDR4 3200 (PC4-25600) ...
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Micron MTA18ASF2G72PDZ-2G6D1SI MICRON 16GB 2RX8 PC4-2666V MEMORY MODULE ...
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NEMIX RAM 32GB 2x16GB DDR4-2133 PC4-17000 1Rx4 ECC Registered Memory
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SAMSUNG M391B1G73Ah0-Ch9 Memory Module-M391B1G73Ah0-Ch9
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Crucial 16GB DDR4 SDRAM ECC Unbuffered DDR4 2666 (PC4 21300) Server Memory ...
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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.