370-AGRG Dell 128GB 4800MT/s 2Rx8 PC5 38400 DDR5 Registered 2rx8 1.1v ECC Memory Module

Dell 370-AGRG DDR5 Registered Memory Overview

The Dell 370-AGRG DDR5 SDRAM memory kit is engineered to meet the growing performance and reliability demands of modern enterprise servers and professional workstations. Designed around next-generation DDR5 technology, this high-capacity memory solution delivers faster data transfer rates, improved power efficiency, and enhanced stability for mission-critical computing environments. It is purpose-built for Dell PowerEdge servers and Precision workstations that require consistent throughput and dependable memory integrity.

Product Identification

• Manufacturer: Dell
• Part Number: 370-AGRG
• Memory Type: DDR5 SDRAM Registered

Technical Specifications

• Total Capacity: 128GB
• Configuration: 4 x 32GB RDIMM
• Speed Rating: 4800MT/s (DDR5-4800 / PC5-38400)
• Error Correction: ECC
• Operating Voltage: 1.1V

High-Capacity DDR5 Memory Architecture

• Total installed capacity of 128GB for demanding workloads
• Four matched 32GB modules for efficient channel utilization
• Advanced DDR5 SDRAM technology for higher bandwidth
• Optimized for enterprise-grade Dell platforms

Module Configuration and Rank Design

• 2Rx8 dual-rank layout for balanced performance
• Registered DIMM signaling for improved reliability
• Ideal for systems requiring large memory footprints

Memory Speed and Latency Profile

• 4800 MT/s transfer rate for accelerated data access
• DDR5-4800 / PC5-38400 compliance
• CL40 latency optimized for server stability

Key DDR5 Enhancements

• Higher memory bandwidth than DDR4
• Improved power management at the module level
• Better scalability for future server expansions

Optimized Voltage for Modern Servers

• 1.1V operating voltage for reduced power draw
• Lower heat generation for improved cooling efficiency
• Supports green and energy-aware IT strategies

Form Factor and Dimensions

• 288-pin Registered DIMM design
• Compact shipping height and depth
• Lightweight construction for easy deployment

Supported Dell PowerEdge Servers

• PowerEdge R660, R660xs, R6615, R6625
• PowerEdge R760, R760xa, R760xs, R760xd2
• PowerEdge R7615, R7625, R860, R960
• PowerEdge C6615, C6620
• PowerEdge T560 and XE-series servers

Precision Workstation Compatibility

• Precision Workstation 5860 Tower and 5860XL
• Precision Workstation 7960 Tower and 7960XL

Ideal Use Cases and Deployment Scenarios

• Virtual machines and hypervisor environments
• Database servers and analytics platforms
• AI, simulation, and rendering workloads
• Professional workstation applications

The Dell 370-AGRG DDR5 ECC Memory Module

In the demanding landscape of modern data centers, cloud infrastructure, and high-availability servers, system memory is far more than just a speed specification. It is the critical foundation for stability, data integrity, and relentless performance. The Dell 370-AGRG 128GB DDR5 Registered ECC Memory Module stands as a cornerstone component engineered specifically for this mission-critical environment. Designed for compatibility with Dell PowerEdge servers and other select enterprise platforms, this module transcends standard memory by integrating advanced error correction, optimized power efficiency, and massive capacity into a single, reliable unit. This detailed exploration delves into the architecture, benefits, and ideal use cases for this powerful memory category, providing the technical insight necessary for IT decision-makers and system architects.

The Dell 370-AGRG 128GB PC5 38400 DDR5 Registered ECC Memory

Every segment of this memory's part number and description conveys vital information about its capabilities and intended application. Understanding this nomenclature is key to selecting the right component for your server infrastructure.

Capacity: 128GB DDR5

This module offers a substantial 128 gigabytes (GB) of capacity on a single Dual In-Line Memory Module (DIMM). This high density is crucial for modern workloads like in-memory databases (e.g., SAP HANA), large-scale virtualization, and big data analytics, where maximizing memory per CPU socket directly translates to enhanced performance and reduced latency. As a DDR5 (Double Data Rate 5) module, it represents the latest generation of memory technology, succeeding DDR4. DDR5 introduces a fundamental architectural shift, providing significantly higher bandwidth, improved power management, and greater scalability compared to its predecessor.

Speed and Classification: 4800MT/s, PC5 38400, and 2Rx8

The 4800 Mega Transfers per second (MT/s) denotes the data rate, indicating the module can complete 4.8 billion data transfers per second per pin. The related PC5 38400 is the industry standard module designation, where "PC5" indicates DDR5 and "38400" refers to the approximate bandwidth in MB/s per module (calculated as 4800 MT/s * 8 bytes * 1 channel ≈ 38400 MB/s). The term 2Rx8 describes the physical organization of the memory chips. "2R" means the module has two "Ranks" – logical groupings of chips that the memory controller can access independently. "x8" refers to the data width of the individual DRAM chips (8 bits). This 2Rx8 configuration is a common and efficient design for high-capacity server modules.

Error-Correcting Code (ECC) Memory

ECC is a non-negotiable feature for any server handling critical data or applications. Cosmic rays, electrical interference, and other factors can cause random bit flips in memory—a phenomenon known as a soft error. ECC memory adds extra bits to each data word to create a code. When data is read, the memory controller recalculates the code and compares it to the stored code. This allows it to detect and automatically correct single-bit errors, and detect (though not correct) multi-bit errors. For the Dell 370-AGRG, this is coupled with the on-die ECC of DDR5, creating a robust, multi-layered defense against data corruption, silent or otherwise, which is essential for financial transactions, scientific computing, and enterprise databases.

Registered DIMMs (RDIMMs): Enabling Stability at Scale

The "Registered" in the module's title signifies that it is an RDIMM. These modules include a register (or buffer) on the DIMM itself, placed between the memory controller and the DRAM chips. This register buffers the address and command signals, reducing the electrical load on the memory controller. This is critical when populating a server with many high-density DIMMs, as it:

Power Efficiency: The 1.1v Standard

DDR5 operates at a lower nominal voltage of 1.1 volts (V), compared to DDR4's typical 1.2V. This reduction, while seemingly small, translates to significant power savings at the data center scale, especially when multiplied across hundreds or thousands of servers. Lower voltage also contributes to reduced heat output, easing thermal management demands within the server chassis and lowering overall cooling costs.

Enhanced Bandwidth and Channel Architecture

The move to DDR5's 4800MT/s base speed provides a substantial bandwidth uplift over common DDR4 speeds (e.g., 3200MT/s). The innovative split into two independent 32-bit (with ECC) sub-channels per DIMM allows for finer-grained memory access. This means the memory controller can issue two simultaneous 32-bit commands to different sub-channels, improving overall concurrency and efficiency, which is particularly beneficial for multi-core CPUs accessing memory in parallel.

Reliability, Serviceability, and Availability (RAS) Features

Enterprise modules are designed with RAS features at their core. The combination of ECC and the Registered design forms the foundation. Furthermore, Dell qualified memory often supports advanced platform-specific RAS features such as:

Populating for Optimal Performance: Channel and Rank Balancing

Modern server CPUs have multiple memory channels (typically 8 or 12 per CPU). For best performance, DIMMs should be installed in a balanced configuration across all channels. Using identical modules, like multiple Dell 370-AGRG 128GB sticks, is strongly recommended. Mixing this module with DIMMs of different capacities, speeds, or ranks can force the system to run all memory at the speed and timings of the slowest DIMM, potentially negating the performance benefits of DDR5. Consulting your specific server's Owner's Manual or Memory Configuration Guide is essential to determine the optimal population order for modules of this density and type.

Compatibility

The Dell 370-AGRG 128GB 4800MT/s DDR5 Registered ECC Memory Module is more than just server RAM; it is a meticulously engineered component designed to deliver uncompromising data integrity, massive scalability, and cutting-edge performance for the most demanding enterprise applications. By combining the raw speed and efficiency of DDR5 with the stability of Registered design and the essential protection of ECC, it provides the reliable, high-capacity memory foundation that modern data-centric workloads require. When planning a Dell PowerEdge server deployment for virtualization, databases, analytics, or HPC, specifying qualified, high-density RDIMMs like the 370-AGRG is a strategic decision that directly contributes to system stability, performance, and total cost of ownership over the server's lifecycle.