A7910489 Dell 32GB 2133MHz PC4-17000 CL15 ECC DDR4 SDRAM 288-Pin LRDIMM Memory

Product Information

• Brand Name: Dell
• Part Number: A7910489
• Product Type: 32GB DDR4 SDRAM Server Memory Module

Core Specifications

• Capacity: 32GB
• Technology: DDR4 SDRAM
• Speed: 2133MHz (PC4-17000)
• Voltage: 1.2V for efficient power usage
• Error Correction: ECC
• Processing Type: Registered for stable server operations
• Latency: CL15 timing for balanced performance
• Rank: Quad Rank X4 design

Physical Attributes

• Form Factor: 288-Pin LRDIMM
• Load Reduced: Optimized for heavy workloads

System Compatibility

• PowerEdge Servers: M630, R630, R730, R730xd, T430, T630
• Precision Workstations: R7910, R7910 XL, T5810, T5810 XL, T7810, T7810 XL, T7910, T7910 XL

Dell A7910489 32GB Memory Overview

The Dell A7910489 32GB 2133MHz PC4-17000 CL15 ECC Registered Quad Rank X4 1.2v DDR4 SDRAM Load Reduced 288-Pin LRDIMM occupies a crucial position in the server memory category where performance, reliability, and density intersect. Designed for modern multi-socket servers and enterprise-class systems, this memory module blends high-capacity 32GB density with load-reduced architecture to enable higher memory counts per channel and per system. As a 2133MHz PC4-17000 module with CL15 latency and ECC Registered functionality, it addresses the exacting demands of virtualization, large in-memory databases, analytics workloads, and memory-hungry applications while maintaining server-class error correction and data integrity standards.

Technical Characteristics

This category centers around DDR4 LRDIMM technology using a load-reduced buffer to isolate the memory controller from electrical loading issues caused by high-rank, high-density modules. The Dell A7910489 is a 288-pin DIMM formatted for server slots, operating at a nominal 1.2 volts, which reduces power draw relative to older generations while maintaining thermal stability in dense configurations. Quad rank X4 organization means that the module addresses memory as four separate internal ranks with x4 wide data paths across each DRAM component, enabling higher effective density and compatibility with systems optimized for quad rank modules. CL15 timing indicates the column access latency at the rated frequency and should be considered in balance with throughput for latency-sensitive applications.

Load-Reduced DIMM

Load-Reduced DIMMs differentiate themselves from Registered DIMMs by buffering address/command and data lines differently to reduce electrical load on the memory controller. In practical terms, this allows systems to populate more DIMM slots and install higher total memory capacity without destabilizing the memory subsystem. For administrators looking to maximize memory capacity in dual- or quad-socket servers, the LRDIMM approach represented by Dell A7910489 enables substantial capacity scaling while preserving signal integrity and maintaining support for ECC error detection and correction. The load-reduced buffer trades slightly higher module complexity for the ability to run dense configurations with consistent performance across slots.

Performance

The 2133MHz operating frequency delivers a strong throughput profile for typical server workloads, and when combined with the module’s 32GB capacity, the A7910489 is well suited for virtualization hosts running large numbers of virtual machines, in-memory caching layers, and analytics engines that require both large working sets and predictable error-correcting memory. CL15 timings provide a healthy balance between latency and bandwidth; while lower CAS latency modules exist, the design emphasis for this category is on overall system throughput and capacity scaling rather than absolute single-threaded latency. Workloads that benefit from this memory category include large-scale virtualization, database buffer pools, SAP HANA sizing scenarios that prefer denser DIMMs, big data frameworks, and compute clusters where per-node memory capacity is a limiting factor.

Energy Efficiency

Operating at 1.2 volts, this DDR4 LRDIMM model reduces power consumption compared to legacy DDR3 modules while increasing usable capacity. Data center operators focused on power efficiency will find that high-density LRDIMMs can reduce the watts-per-gigabyte metric when measured across fully populated servers. Thermal behavior must still be taken into account: densely populated memory channels in heavily loaded servers produce heat that affects adjacent components and may require tuned airflow from chassis fans or optimized rack cooling. The category emphasizes modules manufactured to server-grade thermal tolerances and tested for consistent behavior in multi-module arrays, but installers should always verify server vendor guidance regarding airflow, DIMM slot population order, and chassis fan policies to preserve long-term reliability.

Compatibility

Although marketed under Dell OEM identification, this memory category is largely compatible with a broad range of ECC-capable server platforms that explicitly support DDR4 LRDIMM modules and quad rank devices at 2133MHz. Dell PowerEdge servers configured for high memory capacity and multi-socket configurations often list models like the A7910489 as validated options. Compatibility is contingent on server BIOS/UEFI support for LRDIMM technology, correct memory population rules, and firmware that recognizes quad rank x4 memory organization. System integrators must consult the server vendor’s memory compatibility matrix and follow guidelines for supported mixes of LRDIMM and RDIMM types: typically, LRDIMMs cannot be mixed with RDIMMs or UDIMMs in the same system because of differing buffer architectures and electrical signaling behavior.

BIOS

System BIOS and firmware play a decisive role in extracting the performance and reliability benefits of this memory category. Many server platforms include memory training routines within the UEFI that detect module characteristics, set appropriate memory timings, voltage, and channel interleaving modes, and apply mitigation strategies for signal integrity. Administrators planning to deploy A7910489 modules should ensure servers run firmware versions that support DDR4 LRDIMM of the specified speed and rank configuration. Firmware updates often include important fixes that improve memory training success rates, enable new memory capacities, and address edge-case interoperability problems. When populating a server for the first time, consider executing memory diagnostics available in the server management toolset and documenting the results before placing the system into production.

ECC

Error-Correcting Code (ECC) is foundational to the server memory category and the Dell A7910489 is specifically an ECC Registered module. ECC functionality protects against single-bit and multi-bit soft errors depending on the system’s ECC implementation, and when combined with registered or load-reduced buffering, it helps ensure data integrity for mission-critical operations. Enterprises running long-running batch analytics or financial systems where silent data corruption is unacceptable will benefit from the additional safety layer ECC provides. The category also dovetails with system-level features like memory scrubbing, predictive failure analysis, and platform event logging, allowing IT teams to proactively detect and respond to memory-related faults before they manifest as application errors.

Use Cases

Within the broader server memory category, decision-makers often compare LRDIMM to RDIMM options. LRDIMMs, exemplified by this A7910489 module, excel in scenarios where raw capacity per socket is the priority and higher rank counts are needed. RDIMMs may offer slightly lower latency and simpler buffering for medium-density configurations and can be preferable when mixed memory types are necessary or when server platforms have limitations on LRDIMM use. Cost considerations also factor into selection: high-density LRDIMMs can be more expensive per module than lower-density RDIMMs, but when considering the required number of modules and associated system complexity to reach a target memory footprint, LRDIMMs can be the more economical path to the desired capacity. This category is targeted at buyers who prioritize maximum memory per server and compatibility with systems designed to leverage quad rank LRDIMMs.