Dell 96GB 6400mt/s Pc5-51200 AD390130 Registered DDR5 SDRAM Dual Rank X4 Cl52 1.1v 288-pin Rdimm RAM Module For Server

Outline of Dell AD390130 96GB  PC5-51200 DDR5 Memory 

The Dell AD390130 96GB 6400mt/s PC5-51200 DDR5 SDRAM Registered (RDIMM) category covers server-grade memory modules engineered for modern enterprise workloads that demand high throughput, low latency, and robust data integrity. These modules are ECC (Error-Correcting Code), Registered, Dual Rank, X4-organization, CL52, 1.1V DDR5 RDIMMs with the industry-standard 288-pin edge connector. They are designed specifically for rack and tower servers, data center platforms, virtualization hosts, database servers, and high-performance computing nodes where reliability and predictable performance matter.

Key technical identifiers  

Important search terms and identifiers customers use include: Dell AD390130, 96GB DDR5 RDIMM, 6400MT/s PC5-51200, ECC Registered memory, Dual Rank x4, CL52, 1.1V, and 288-pin RDIMM for server. Optimizing content around these phrases helps buyers find modules compatible with modern Dell PowerEdge platforms and other servers that support DDR5 RDIMM specifications.

Specification breakdown  

Memory density and capacity: 96GB

A 96GB module allows for higher per-slot capacity than historical DDR4 options, enabling dense memory configurations without consuming extra DIMM slots. For server administrators this translates to larger VM consolidation ratios, bigger in-memory databases, and improved caching capacity per server node.

Speed and bandwidth: 6400MT/s, PC5-51200

6400 mega-transfers per second (MT/s) corresponds to the PC5-51200 class (nominal theoretical peak bandwidth ~51.2 GB/s per module in ideal conditions when considering the interface width). This class of DDR5 module is targeted at systems that benefit from high memory bandwidth — analytics, AI/ML inference nodes, and HPC applications.

Form factor and pinout: 288-pin RDIMM

The 288-pin layout is the standard physical interface for DDR5 RDIMM modules in servers. Registered DIMMs (RDIMM) include an address/command register between the memory controller and DRAM devices that reduces electrical loading and improves signal integrity at high densities and speeds.

ECC Registered vs UDIMM vs LRDIMM

ECC Registered (RDIMM) modules like these implement hardware ECC and register buffering to ensure system stability under heavy loads. Compared to UDIMM (unbuffered), RDIMMs are preferable in enterprise servers. LRDIMMs (Load Reduced DIMMs) offer even higher density in some configurations, but RDIMMs provide a balanced tradeoff of compatibility, latency, and density.

Rank and organization: Dual Rank x4

Dual-rank modules present two logical ranks of memory to the controller — this can improve effective parallelism and throughput on many memory controllers. The x4 organization indicates the internal DRAM chip width; x4 is common for server-grade DIMMs and often used for high-capacity modules due to chip size and addressing efficiency.

CAS Latency: CL52 and voltage: 1.1V

CL52 refers to the column access strobe (CAS) latency in cycles. While raw cycle counts may appear higher in DDR5 vs older generations, overall throughput improvements and architectural enhancements can produce superior real-world latency and bandwidth. The DDR5 standard typically operates near 1.1V for nominal voltage, improving power efficiency compared to higher-voltage DDR generations.

Use cases and workload suitability

Virtualization and cloud infrastructure

The 96GB capacity per DIMM is ideal for hypervisor hosts running many virtual machines (VMs). Systems populated with multiple 96GB RDIMMs allow administrators to support greater VM density while preserving memory headroom for live migration, snapshots, and memory-intensive guest OS tasks. ECC-correcting memory is critical for multi-tenant environments where data integrity is non-negotiable.

Databases and in-memory caching

Database servers (relational and NoSQL) and caching layers benefit from the combination of large capacity and high bandwidth. In-memory databases and large cache layers (Redis, Memcached, in-memory OLTP) often see direct latency and throughput improvements when upgraded to 6400MT/s DDR5 RDIMMs.

High-performance computing and analytics

Analytics workloads (OLAP, large-scale ETL, columnar stores) and HPC simulations need both bandwidth and capacity. Dual rank DDR5 RDIMMs supply stronger parallel memory access patterns for multi-threaded analytics engines and vectorized computation workloads.

AI/ML inference and data pipelines

While GPU-bound training is common, CPU-based inference and pre-/post-processing pipelines run on the server CPU and require fast memory. These RDIMMs help sustain data throughput into CPUs, accelerating preprocessing, batch inference, and feature engineering tasks.

Compatibility and server support

Server families and firmware considerations

These RDIMMs are targeted to modern server platforms that explicitly support DDR5 RDIMM modules. Always verify server documentation and HCL (Hardware Compatibility List) for supported memory densities, speeds, and population rules. Firmware and BIOS updates may be required to enable max speed (e.g., 6400MT/s) or to support higher-capacity DIMMs. Consult OEM memory compatibility lists for validated configurations.

Memory population rules and channel topology

Server motherboards use multi-channel memory controllers (dual-, quad-, or octa-channel depending on CPU/socket). For best performance, populate memory channels per vendor guidelines to enable interleaving and maximize parallel access. Mixing ranks, speeds, or module types may force the system to downclock or default to a safe JEDEC speed.

Mixing with other memory types

Mixing DDR5 RDIMMs of different speeds or vendors can cause the platform to operate at the lowest common denominator speed/voltage/timings. For predictable production behavior, use matched kit sets or identical modules (same part number) across channels. ECC and RDIMM buffering generally ensure higher tolerance to mixed populations than unbuffered memory, but identical modules remain the recommended best practice.

Handling and ESD precautions

Server memory is sensitive to electrostatic discharge (ESD). Follow ESD-safe handling: grounded wrist straps, anti-static mats, and avoid touching gold edge connectors or circuitry. Keep modules in anti-static sleeves until installation and avoid flexing or bending the DIMM.

Memory training and POST

On the first boot after installing higher-density or high-speed modules, the platform may perform extended memory training routines. Allow the server to complete POST and training cycles. If the system fails to boot or reports memory errors, reseat modules, try alternate slots, or consult vendor debug logs (iDRAC, ILO) for DIMM errors.

Performance tuning and optimization

Choosing the right memory topology for your workload

Achieving optimal performance is a balance between capacity, rank count, and channel population. Dual-rank modules can improve throughput in systems optimized for rank interleaving. However, adding more ranks across channels may increase memory controller load; always test real-world workloads to find optimal mixes.

Latency vs bandwidth tradeoffs

While DDR5 increases peak bandwidth significantly, CAS latency numbers may be numerically higher than DDR4. Many enterprise workloads benefit more from bandwidth than marginal lower latency, but latency-sensitive applications (certain OLTP workloads) should be benchmarked specifically to ensure performance goals are met.

NUMA considerations

In multi-socket servers, memory is often partitioned in NUMA nodes. Populate DIMMs in a way that preserves NUMA locality for processes that are memory- or NUMA-sensitive. NUMA-aware scheduling and tuning can dramatically improve throughput and reduce cross-socket memory access penalties.

Reliability, ECC behavior, and data integrity

ECC operation and corrected vs uncorrected errors

ECC memory can detect and correct single-bit errors and detect multi-bit events depending on implementation. Registered ECC RDIMMs greatly reduce the frequency of silent data corruption by automatically correcting single-bit memory errors and flagging multi-bit errors for system and admin action. Proper monitoring and logging ensure quick action on uncorrectable events.

Registered buffering advantages

The register on RDIMMs buffers address/command signals, reducing trace loading and enabling stable signaling at higher speeds and densities. For servers running in 24/7 production, registered buffering helps maintain predictability and reduces the risk of timing-related memory errors.

Thermal and power considerations

Higher density and higher-speed modules can generate more heat. Ensure proper airflow in server chassis and that system fans and thermal management profiles are configured to handle increased memory thermal load. DDR5's nominal 1.1V helps with power efficiency, but real-world power draw will depend on module architecture and system population.

Comparison and alternatives

Comparing Dell AD390130 to lower speed DDR5 RDIMMs

Compared to lower-speed DDR5 RDIMMs (e.g., 4800MT/s), the 6400MT/s class delivers higher theoretical bandwidth and can reduce memory-bound bottlenecks. The tradeoffs are ensuring platform support and potentially higher cost. In many cases the incremental performance justifies the investment for bandwidth-sensitive workloads.

Dual Rank RDIMM vs LRDIMM for extreme density

If a deployment requires pushing memory capacity to the absolute maximum per socket, LRDIMMs may allow higher cumulative capacity by reducing electrical loading. However, LRDIMMs can have slightly higher latency and cost. For many balanced workloads, RDIMMs like the AD390130 offer an excellent compromise between latency, compatibility, and cost.

Vendor lock-in and cross-vendor compatibility

Dell-labeled modules are validated for Dell platforms, but DDR5 RDIMMs from reputable third-party manufacturers can also work in Dell servers if they adhere to JEDEC and OEM compatibility. For enterprise procurement, validated vendor lists and warranty coverage are important factors — buying OEM-validated memory reduces risk and improves supportability.