P19045-B21 HPE 64GB SDRAM DDR4 Ecc 2933MHZ Pc4-23400 288 Pin Reg Ram
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| SKU/MPN | Warranty | Price | Condition | You save |
|---|---|---|---|---|
| P19045-B21 | 1 Year Warranty | $855.00 | Factory-Sealed New in Original Box (FSB) | You save: $299.25 (26%) |
| P19045-B21 | 1 Year Warranty | $625.00 | New (System) Pull | You save: $218.75 (26%) |
HPE 64GB DDR4 ECC Memory
The HPE P19045-B21 Smart Memory module delivers exceptional performance and reliability for enterprise-grade servers. Built with advanced DDR4 technology, this 64GB registered DIMM ensures seamless multitasking and optimized system efficiency.
General Details
- Manufacturer: HPE
- Part Number: P19045-B21
- Device Type: Smart Memory – DDR4 – 64GB – DIMM 288-pin – Registered
Technical Specifications
Capacity and Structure
- Storage Size: 64GB
- Module Count: 1 x 64GB
- Form Factor: DIMM 288-pin
Performance Attributes
- Memory Type: DDR4 SDRAM
- Speed: 2933 MHz (PC4-23400)
- Rank: Dual Rank x4
- Voltage: 1.2 V
- Latency: CL21 (21-21-21)
Reliability Features
- Error Correction: ECC (Error-Correcting Code)
- Upgrade Type: System Specific
Physical Dimensions
- Height: 8.89 cm
- Width: 19.05 cm
- Depth: 1.91 cm
Compatibility Information
Supported Server Models
HPE ProLiant DL325 Gen10 Series
- DL325 Gen10 Base
- DL325 Gen10 Entry
- DL325 Gen10 Performance
- DL325 Gen10 SMB Solution
HPE ProLiant DL385 Gen10 Series
- DL385 Gen10 Base
- DL385 Gen10 Entry
- DL385 Gen10 High-Performance
- DL385 Gen10 Performance
- DL385 Gen10 Solution
P19045-B21 64GB DDR4 ECC Registered Memory Overview
The HPE P19045-B21 64GB SDRAM 2933MHz PC4-23400 DDR4 ECC 288-Pin Registered RAM is a high-performance server memory module designed to meet the demanding requirements of enterprise-grade computing environments. Built for compatibility with modern Hewlett Packard Enterprise servers, this advanced memory module delivers reliability, stability, and optimized data throughput in mission-critical systems. Organizations that rely on virtualization platforms, high-density databases, cloud infrastructure, and large-scale applications require memory solutions capable of delivering consistent performance under heavy workloads, and this DDR4 ECC registered RAM module is engineered precisely for those environments.
With a total capacity of 64GB, this server memory module offers substantial memory expansion potential for systems that must handle complex workloads, high concurrency, and massive datasets. The 2933MHz speed rating ensures efficient data transfer between the memory and processor, enabling servers to operate smoothly during intensive computational tasks. The PC4-23400 classification indicates the theoretical maximum bandwidth of the module, allowing improved responsiveness and performance in modern server architectures.
Designed using DDR4 technology, the HPE P19045-B21 module benefits from the energy efficiency improvements, increased density, and enhanced data rates that DDR4 memory provides over previous DDR3 generations. Furthermore, the integrated ECC (Error Correcting Code) functionality ensures system reliability by detecting and correcting data corruption in real time, making it ideal for environments where data accuracy and uptime are essential.
Understanding DDR4 SDRAM Server Memory Technology
Evolution from DDR3 to DDR4 Memory
DDR4 SDRAM represents a significant advancement in server memory technology compared to earlier DDR3 modules. With increased bandwidth capabilities, lower operating voltages, and improved signal integrity, DDR4 memory has become the industry standard for modern data center servers and enterprise systems. The HPE P19045-B21 module utilizes DDR4 architecture to provide better power efficiency while simultaneously increasing performance capabilities.
DDR4 memory modules operate at lower voltages than DDR3, typically around 1.2V rather than 1.5V. This reduction in power consumption is critical in large-scale data centers where hundreds or thousands of servers operate simultaneously. Reduced voltage translates directly into lower heat output and improved overall energy efficiency, which helps reduce operational costs and cooling requirements.
Improved Data Throughput and Memory Density
One of the most notable advantages of DDR4 memory technology is its ability to support higher memory densities. The HPE 64GB module exemplifies this improvement by providing a large memory capacity within a single DIMM slot. Higher density memory modules allow system administrators to increase server memory without occupying additional slots, making it easier to scale systems for growing workloads.
In addition to increased density, DDR4 memory also delivers significantly higher bandwidth. The 2933MHz speed of the HPE P19045-B21 RAM allows for faster communication between system components, including processors, storage devices, and network interfaces. This high-speed performance is particularly beneficial for servers that manage heavy transactional workloads or real-time analytics.
PC4-23400 Memory Bandwidth
The PC4-23400 designation indicates the maximum theoretical bandwidth of approximately 23,400 MB per second. This bandwidth level allows modern multi-core processors to access data efficiently without encountering memory bottlenecks. In high-performance server environments where multiple applications run simultaneously, adequate memory bandwidth is crucial to maintaining system stability and performance.
288-Pin DIMM Form Factor
The module utilizes the standard 288-pin DIMM form factor used by DDR4 server memory modules. This configuration ensures compatibility with a wide range of enterprise server motherboards designed to support DDR4 registered memory. The physical design of the 288-pin module allows for stable electrical connections and reliable communication between the memory module and the system board.
System Stability for Continuous Operations
Enterprise servers often operate continuously for months or even years without interruption. ECC memory helps maintain stability in these long-running systems by preventing minor memory errors from accumulating and causing system failures. For organizations that rely on uninterrupted services such as financial platforms, healthcare systems, or e-commerce websites, ECC memory is a fundamental component of reliable infrastructure.
Benefits of Registered (Buffered) RAM in Server Architecture
Enhanced Memory Capacity Support
Registered memory, also known as buffered memory, includes a register between the memory module and the system memory controller. This design reduces the electrical load on the memory controller, allowing servers to support a greater number of memory modules without compromising stability.
The HPE P19045-B21 module uses registered memory architecture to enable large memory configurations within enterprise servers. By buffering control signals, the module ensures stable communication between multiple DIMMs installed in the system.
Improved Reliability in Multi-DIMM Environments
In servers that utilize numerous memory modules simultaneously, electrical signal integrity becomes increasingly important. Registered memory helps maintain reliable communication by stabilizing signals before they reach the memory controller. This design allows servers to support high-capacity memory configurations necessary for large-scale enterprise applications.
Compatibility with HPE Enterprise Servers
Optimized for HPE ProLiant Servers
The HPE P19045-B21 64GB DDR4 RAM module is engineered to work seamlessly with compatible HPE ProLiant server models. These servers are widely used in data centers and enterprise environments due to their reliability, scalability, and performance capabilities. Installing genuine HPE memory ensures full compatibility with system firmware and hardware components.
Using manufacturer-certified memory modules helps maintain optimal system performance and ensures that servers operate within their intended specifications. Compatibility testing performed by HPE guarantees that this memory module integrates correctly with supported server platforms.
Integration with Enterprise IT Infrastructure
Modern enterprise IT infrastructures consist of interconnected servers, storage systems, and networking equipment. Memory modules such as the HPE P19045-B21 play a critical role in supporting the performance requirements of these systems. High-capacity RAM enables servers to process larger workloads, run multiple applications simultaneously, and support cloud computing environments.
Database Management Systems
Database servers frequently rely on large amounts of RAM to store indexes, query results, and frequently accessed data in memory. By reducing reliance on disk-based storage, high-capacity RAM significantly improves database performance and response times. The HPE P19045-B21 memory module supports these requirements by providing reliable, high-speed memory for enterprise database environments.
Cloud Computing Infrastructure
Cloud service providers operate large server clusters that deliver computing resources to customers on demand. These environments require scalable memory configurations to support dynamic workloads and multiple tenants. High-density memory modules allow cloud servers to allocate resources efficiently and maintain consistent performance levels.
Key Optimization with 2933MHz Memory Speed
Reducing Memory Bottlenecks
In high-performance computing environments, slow memory access can create bottlenecks that limit overall system efficiency. The 2933MHz speed of the HPE P19045-B21 DDR4 RAM helps minimize these bottlenecks by allowing faster communication between processors and memory.
Servers equipped with high-speed memory can process data more quickly, improving application responsiveness and reducing latency for end users. This performance advantage becomes especially noticeable in workloads involving real-time analytics, financial modeling, or high-frequency transactions.
Supporting Multi-Core Processor Architectures
Modern server processors often feature dozens of cores capable of executing multiple threads simultaneously. These processors require fast memory access to maintain optimal performance. The high bandwidth of PC4-23400 DDR4 memory ensures that multi-core CPUs receive data quickly, preventing delays that could reduce processing efficiency.
