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SAMSUNG M393B2K70Cm0-Cf8Q5 Memory Module For Server-M393B2K70Cm0-Cf8Q5
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Lenovo 0A89417 16GB DDR3 1333 (PC3 10600) RDIMM Memory for Lenovo ThinkStation S30
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852261-001 - HP Compatible 8GB PC4-19200 DDR4-2400Mhz 1Rx4 1.2v Registered RDIMM
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NEMIX RAM N8102-651 for NEC Express5800/R120f-2E Storage-Rich 32GB (2x16GB) RDIMM ...
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861110-001 - HP Compatible 32GB PC4-19200 DDR4-2400Mhz 2Rx4 1.2v ECC Registered ...
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IBM 46C0599 16GB DDR3 1333 (PC3 10600) RDIMM Memory for IBM BladeCenter HS22 ...
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32GB Memory HP Pavilion tp01,TP01-1337C,TP01-135mcn,TP01-1363nb,TP01-1367nb
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NEMIX RAM 16GB DDR4-2666 1Rx4 RDIMM VLP for Intel S2600WFT
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NOT FOR PC/MAC! New 8GB Module ECC REG PC3-12800 Memory for Dell PowerEdge R515
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UCS-ML-X64G4RS-H 64GB for CISCO UCS C-Series C220 M5 by Micron (Crucial ...
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NEMIX RAM N8102-647F for NEC Express5800/R120f-2E Storage-Rich 32GB (1x32GB) ...
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16GB Memory HP Pavilion 590,595-p0000ur,595-p0001nb,595-p0001nk,595-p0001no
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NEMIX RAM 32GB DDR4-2666 2Rx4 RDIMM for Intel R2208WTTYSR
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16GB Memory HP 190,190-0458d,190-0459d,190-0500il,190-0501in,190-0502d
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HP 593915-B21 16GB DDR3 1066 (PC3 8500) RDIMM Memory for HP ProLiant DL580 G7 Server
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32GB RDIMM Memory for HP ProLiant XL250a G9 Server DDR4-2933 by Nemix Ram
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8GB RDIMM 2Rx8 Memory for Fujitsu Celsius M730 DDR3-1866 by Avarum
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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.