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Difficulty: HardRAM Types and Characteristics

A systems engineer is preparing RAM upgrades for four specialized hardware deployments. Match each system requirement on the left with its corresponding memory specification or form factor feature on the right.

  • Ultra-thin laptop upgrade requiring module architecture with dual independent 32-bit subchannels and lower operating voltage than DDR4DDR5 SODIMM
  • Enterprise database server deployment requiring memory buffers to minimize electrical loading on the memory controller busLRDIMM with ECC
  • High-performance desktop workstation configured to double memory bandwidth by placing identical modules across separate channelsDual-channel population
  • Compact edge gateway appliance utilizing small-form-factor unbuffered modules with single-bit error detection capabilitiesECC SODIMM

Answer

The ultra-thin laptop specification matches DDR5 SODIMM; the enterprise database server requirement matches LRDIMM with ECC; the high-performance desktop setup matches Dual-channel population; and the compact edge gateway appliance matches ECC SODIMM.
Each deployment scenario aligns with specific memory traits: DDR5 SODIMM provides dual 32-bit subchannels in a compact mobile form factor; LRDIMM uses buffer logic to decrease electrical loading on server memory controllers; dual-channel population utilizes dual 64-bit paths for doubled data rate throughput; and ECC SODIMM brings enterprise single-bit error detection to small-form-factor devices.

Step-by-Step Solution

1
Analyze mobile form factor and architecture characteristics for the laptop upgrade requirement.
Identify DDR5 SODIMM as the correct match.
DDR5 modules split the traditional 64-bit bus into two 32-bit subchannels per DIMM and SODIMM is the standard compact form factor for laptops.
2
Analyze server memory requirements focused on electrical load reduction.
Identify LRDIMM with ECC as the correct match.
LRDIMMs buffer both control and data lines, allowing higher density per channel compared to standard registered or unbuffered modules.
3
Determine the memory population technique used to double bus bandwidth.
Identify Dual-channel population as the correct match.
Populating matched memory modules into corresponding slots on separate memory channels enables 128-bit aggregate memory bus communication.
4
Match small-form-factor error checking memory to the edge gateway requirement.
Identify ECC SODIMM as the correct match.
Compact devices requiring high reliability rely on SODIMMs built with extra data bits for Error-Correcting Code.

Key Concept

RAM Form Factors, Generations, and Error Correction Capabilities
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Topics

RAM Types and Characteristics

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