Registered memory: Difference between revisions

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Buffers and registers dimms are not the same
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[[File:Two 8 GB DDR4-2133 ECC 1.2 V RDIMMs.jpg|thumb|right|upright=1.4|Two 8 GB [[DDR4]]-2133 ECC 1.2 V registered [[DIMM]]s (RDIMMs)]]
 
'''Registered''' (also called '''buffered''') Buffers are an older technology than registers(CompTIA A+) '''memory''' modules have a [[Hardware register|register]] between the [[Dynamic random access memory|DRAM]] modules and the system's [[memory controller]]. They place less electrical load on the memory controller and allow single systems to remain stable with more [[memory module]]s than they would have otherwise. When compared with registered memory, conventional memory is usually referred to as '''unbuffered memory''' or '''unregistered memory'''. When manufactured as a [[dual in-line memory module]] (DIMM), a registered memory module is called an '''RDIMM''', while unregistered memory is called '''UDIMM''' or simply '''DIMM'''.
 
Registered memory is often more expensive because of the [[Economies of scale|lower number of units sold]] and additional [[Electrical component|circuitry]] required, so it is usually found only in applications where the need for [[scalability]] and [[Robustness (computer science)|robustness]] outweighs the need for a low price{{snd}} for example, registered memory is usually used in [[Server (computing)|server]]s.