AA579531 Dell 32GB DDR4 SDRAM ECC Memory Module PC4-23400 2933MHz

Dell AA579531 32GB Memory Overview

The Dell AA579531 32GB 2933MHz PC4-23400 CL21 ECC Registered Dual Rank X4 1.2v DDR4 SDRAM 288-Pin RDIMM for PowerEdge server memory module belongs to a category of enterprise-grade server memory engineered to meet the demanding reliability, availability, and serviceability standards expected in modern data centers and enterprise IT environments. This memory module is designed to integrate seamlessly with Dell PowerEdge servers, offering optimized performance for virtualization, database processing, high-performance computing tasks, and mixed workload consolidation. The module’s DDR4 architecture, coupled with ECC and Registered features, reduces error rates and protects critical workloads against silent data corruption, while the 2933MHz frequency provides a balance between latency and throughput for latency-sensitive server applications.

Architecture

The AA579531 RDIMM is built using industry-standard DDR4 SDRAM technology and conforms to the PC4-23400 specification, indicating theoretical peak bandwidth suited to 2933MT/s operation. The module uses a dual-rank X4 organization which affects both memory channel utilization and compatibility with certain server motherboard topologies. At 1.2 volts operating voltage, it follows modern low-voltage standards for DDR4, reducing thermal footprint relative to older, higher-voltage memory types. The 288-pin RDIMM form factor is standard for 2U through 4U rack servers and tower systems built around server-grade chipsets and BIOS microcode optimized for registered memory. The combination of ECC and Registered buffering ensures that this module is not only able to detect and correct single-bit errors but also to present stable electrical signaling to the memory controller, which is crucial when populating many DIMM slots or operating with high-density memory.

Memory

Dual-rank modules like the AA579531 contain two sets of DRAM chips that the memory controller treats as separate banks for access. Dual-rank modules often deliver improved throughput under multi-threaded server workloads compared to single-rank alternatives, because the memory controller can interleave operations across ranks. The X4 device width indicates that each DRAM chip contributes 4 data bits per access cycle, which influences refresh behavior and error-correction characteristics. Dual-rank X4 modules are typically preferred in server environments where maximizing density per channel while maintaining strong error detect-and-correct capability delivers the best return on investment for memory-heavy workloads.

ECC Registered

Error-Correcting Code, or ECC, embedded in this module provides real-time single-bit error correction and multi-bit error detection. This capability dramatically decreases the chance that memory errors propagate into corrupted application data or system stability events. Registered memory, sometimes called buffered memory, introduces a register between the DRAM chips and the memory controller. This register buffers control and address signals, which reduces electrical load on the memory controller when many modules are present. In large server configurations, the Registered aspect is what allows systems to scale to higher total memory capacities without unstable signal integrity. For mission-critical tasks such as transaction processing, virtualization hosts, and in-memory analytics, the combination of ECC and Registered features provided by this module is essential for predictable, consistent service levels.

Compatibility

The Dell AA579531 was validated to operate with a wide range of PowerEdge platforms and BIOS revisions. Compatibility includes multiple generations of PowerEdge servers in Dell’s rack and tower portfolio; however, exact compatibility depends on BIOS microcode, memory population rules, and processor generation. System firmware and platform configuration guidelines from Dell specify which DIMM slot configurations, maximum supported densities, and mixed-rank arrangements are supported. Because server designers often apply specific SPD (Serial Presence Detect) programming to modules intended for certain motherboard families, purchasing Dell-validated modules such as the AA579531 helps ensure that the module will initialize correctly, reach advertised speeds, and adhere to manufacturer support matrices in warranty and service agreements.

Performance

The 2933MHz transfer rate of the PC4-23400 class results in higher sustained memory bandwidth compared to lower-frequency DDR4 modules while maintaining stable latencies appropriate to server workloads. CL21 indicates the column access strobe latency in DDR4 terminology; although latency numbers are one factor, end-to-end application performance is influenced by the interplay of frequency, ranks, and server memory architecture. In practical terms, deploying 32GB RDIMMs at 2933MHz increases a server’s ability to service concurrent virtual machines, cache larger datasets in memory for database engines, accelerate large-scale analytics, and reduce page swapping that would otherwise degrade performance. For environments where throughput and error resilience are prioritized together, these modules are a pragmatic selection.

Thermal

Operating at 1.2 volts helps lower total memory subsystem power draw in large-scale deployments, which can translate into measurable reductions in data center cooling. RDIMMs are often fitted with heat spreaders or designed with thermal-friendly PCB layouts to support consistent thermal dissipation under sustained loads. When populating many DIMM slots, administrators should consider overall airflow patterns and verify that populated banks do not create hotspots that stress the thermal design of the server chassis. Monitoring tools and system telemetry integrated into modern server management stacks provide insights into adjacent module temperatures and help guide placement or density decisions to maintain long-term module reliability.

Use Cases

The Dell AA579531 RDIMM is ideally suited to virtualization hosts where high memory capacity and resilience reduce sensitivity to noisy-neighbor effects, to database servers that keep large portions of datasets in memory to reduce disk I/O, to in-memory caching layers that demand consistent low-latency access, and to computational nodes running parallel scientific or machine learning tasks where memory bandwidth is a bottleneck. Cloud providers, managed service operators, and enterprise IT teams commonly standardize on RDIMM modules for these workloads because they enable predictable scaling and simplified supportability with supplier-backed validation. In mixed workload environments, the module’s balance of density, speed, and error correction helps deliver a reliable platform for both OLTP and OLAP style processing concurrently.

Comparisons

Compared to unbuffered ECC modules typically found in workstations, Registered RDIMMs like the AA579531 enable higher maximum densities per system and improved signal integrity for multi-DIMM configurations, albeit at a modest latency and premium. For memory architectures requiring the absolute lowest latency, load-reduced DIMMs (LRDIMMs) are an alternative that pushes density further by buffering data paths differently, but they carry their own compatibility considerations.