CPX-GD7H7 Dell 128GB DDR5 5600Mt/s PC5-44800 ECC Registered CL46 288-pin Rdimm Memory

Overview Of Dell CPX-GD7H7 128GB DDR5 Memory Module

The Dell CPX-GD7H7 128GB DDR5 SDRAM memory module is engineered to meet the demanding performance, scalability, and reliability requirements of modern enterprise server environments. Designed as a high-capacity registered DIMM solution, this DDR5 memory module supports data-intensive workloads, virtualization platforms, cloud infrastructures, and mission-critical applications that require consistent throughput and dependable data integrity.

General Information

• Manufacturer: Dell
• Part Number: CPX-GD7H7
• Product Type: Memory Module

Technical Specifications

• Total Capacity: 128GB
• Rank Features: 4rx4
• Cas Latency Timings: CL46
• Signal Processing: Registered
• Data Integrity Check: ECC
• Bus Speed: DDR5-44800 /PC5-44800
• Number Of Modules: 1 X 64gb
• Memory Technology: DDR5 Sdram

Physical Specifications

• 288-pin registered DIMM form factor
• Compact shipping height of 1.00 inch
• Shipping depth of 6.75 inches
• Lightweight design at approximately 0.20 lb

Supported Dell PowerEdge Systems

• PowerEdge C6620
• PowerEdge HS5610
• PowerEdge HS5620
• PowerEdge MX760c
• PowerEdge R660
• PowerEdge R760
• PowerEdge R760xa

The Dell CPX-GD7H7 DDR5 PC5-44800 RDIMM Memory Module

The Dell CPX-GD7H7 128GB DDR5 RDIMM memory module represents a high-density server memory category engineered for enterprise-class computing environments that demand reliability, scalability, and sustained performance. This category focuses on registered DDR5 SDRAM modules designed specifically for modern server architectures, virtualization platforms, cloud workloads, and data-intensive applications. With a capacity of 128GB in a single module, this class of memory enables system architects to maximize memory footprints while minimizing physical slot usage, supporting dense configurations in rack-mounted and blade servers.

High-Capacity DDR5 Server Memory

With a total capacity of 128GB in a single module, this Dell DDR5 RDIMM delivers exceptional memory density, allowing servers to maximize available slots while maintaining optimal performance. The advanced DDR5 SDRAM architecture improves bandwidth efficiency, power regulation, and overall responsiveness compared to previous-generation memory technologies.

Advanced Performance

Operating at a bus speed of 5600MT/s (PC5-44800), this memory module ensures faster data transfer rates and reduced latency for compute-heavy server tasks. The CL46 latency profile is optimized for stability and sustained workloads, making it ideal for enterprise-grade systems running databases, analytics engines, and virtualization software.

ECC Registered Memory for Data Reliability

The Dell CPX-GD7H7 module features Error-Correcting Code (ECC) technology combined with registered signal processing. ECC functionality automatically detects and corrects single-bit memory errors, helping maintain system uptime and protect critical data from corruption. Registered DIMM architecture further enhances signal integrity, ensuring reliable communication between the memory controller and the module under high-load conditions.

4Rx4 Rank Configuration Benefits

The 4Rx4 rank configuration improves memory interleaving and data handling efficiency, particularly in multi-processor and high-core-count server platforms. This rank structure supports increased stability and performance consistency across demanding enterprise workloads.

Power-Efficient 1.1V DDR5 Design

Operating at a low voltage of 1.1V, this DDR5 RDIMM module helps reduce overall power consumption while maintaining high throughput. Lower voltage operation contributes to improved thermal performance, reduced cooling requirements, and better energy efficiency within data centers and enterprise IT environments.

Registered DIMM Technology

Registered DIMM technology is a cornerstone of this memory category. By incorporating a register between the DRAM modules and the memory controller, RDIMM designs reduce electrical load and improve signal stability. This is particularly important in configurations with multiple DIMMs per channel, where unbuffered memory would struggle to maintain timing accuracy and signal clarity.The Dell CPX-GD7H7 DDR5 RDIMM category is built to support enterprise-grade platforms that rely on registered memory for predictable behavior under sustained workloads. The register allows systems to support larger memory capacities and higher speeds without sacrificing reliability, making this category a preferred choice for data centers and professional IT infrastructures.

DDR5 SDRAM Performance

DDR5 SDRAM introduces significant advancements over DDR4, and this category fully leverages those improvements. Operating at 5600 MT/s, DDR5 memory modules deliver higher data transfer rates, enabling faster communication between the processor and memory subsystem. This increased bandwidth is essential for modern CPUs with higher core counts and parallel processing capabilities.

PC5-44800 Bandwidth Memory

The PC5-44800 designation reflects the theoretical maximum bandwidth of the memory module, reaching up to 44.8 GB/s per module. This level of throughput supports high-performance computing tasks, large-scale simulations, and enterprise applications that rely on rapid data access. The category emphasizes sustained bandwidth rather than short bursts, ensuring consistent performance during long-running operations.

ECC Registered Benefits in Server

ECC Registered memory provides a dual layer of protection by combining error correction with registered signal buffering. This approach enhances both data integrity and system stability, particularly in large memory configurations. The category supports environments where memory errors could lead to application crashes, data loss, or costly downtime.By reducing the likelihood of undetected memory errors, this category contributes to overall system reliability and long-term operational efficiency. Enterprises benefit from reduced maintenance costs and improved confidence in their infrastructure when deploying ECC Registered DDR5 memory modules.

Power Efficiency and 1.1V Operating Voltage

Power efficiency is a defining attribute of the DDR5 RDIMM category, and the Dell CPX-GD7H7 module operates at a nominal voltage of 1.1V. This lower operating voltage compared to previous generations reduces overall power consumption, which is a critical consideration in large-scale data centers where energy costs and thermal management are major factors.Lower voltage operation also contributes to reduced heat generation, allowing servers to maintain optimal operating temperatures even under heavy workloads. This category supports energy-efficient computing initiatives without compromising performance or reliability, aligning with modern sustainability goals in enterprise IT environments.

CAS Latency and Timing

The Dell CPX-GD7H7 DDR5 RDIMM category features a CAS latency of CL46, which is optimized for high-capacity server memory. While latency values increase with higher frequencies in DDR5 technology, the overall performance gain from increased bandwidth outweighs the latency difference in most enterprise workloads.This category is engineered to balance latency, bandwidth, and stability, ensuring predictable performance across a wide range of applications. Timing parameters are carefully tuned to meet server platform requirements, supporting consistent operation in multi-DIMM configurations.

288-Pin RDIMM Form Factor

The 288-pin RDIMM form factor is the industry standard for DDR5 server memory, ensuring broad compatibility with current and future server platforms. This category is designed to fit seamlessly into enterprise motherboards that support DDR5 RDIMMs, simplifying system upgrades and expansions.Physical and electrical specifications are aligned with JEDEC standards, allowing system integrators and IT professionals to deploy this memory category with confidence. The standardized form factor supports tool-less installation and reliable mechanical retention in server DIMM slots.

Integration with Modern Server

Modern server architectures are designed to exploit the advantages of DDR5 RDIMM memory, including higher memory channel counts and improved memory controllers. This category integrates smoothly into such platforms, enabling optimal utilization of available memory bandwidth and capacity.Whether deployed in single-socket or multi-socket systems, the 288-pin RDIMM design ensures consistent electrical performance and compatibility across a wide range of enterprise hardware.

Scalability and Future-Proofing

Scalability is a core attribute of this memory category. By supporting high-density modules and DDR5 speeds, it enables organizations to build systems that can scale with future workload demands. As software applications continue to grow in complexity and data volume, memory capacity and bandwidth become increasingly critical.