P58839-001 HPE 16GB DDR5-4800MHz PC5-38400 1Rx8 ECC Single Rank Memory Module

General Information

• Manufacturer: HPE
• Part Number: P58839-001
• Product Name: 16GB DDR5 ECC Registered RDIMM

• Part number: P58839-001 (HPE)
• Capacity: 16GB (16 gibibytes / 16,384 MB)
• Memory type: DDR5 SDRAM
• Speed: 4800MT/s (commonly written as DDR5-4800)
• Bandwidth: PC5-38400 (38,400 MB/s theoretical peak per module)
• Organization: 1Rx8 (single rank with x8 devices)
• Error correction: ECC (Error-Correcting Code) for single-bit correction and multi-bit detection
• Form factor: RDIMM or UDIMM variant dependent on platform; check server compatibility list
• Operating voltage: DDR5 standard voltage (typically 1.1V nominal with on-module PMIC)
• JEDEC compliance: Manufactured to DDR5 JEDEC standards; optimized for HPE platform validation

Product Family and Quick Identification

HPE P58839-001 refers to a server-grade memory module: the HPE 16GB DDR5-4800MHz PC5-38400 1Rx8 ECC Single Rank Memory Module. This line belongs to Hewlett Packard Enterprise's validated memory family designed for modern servers and workstations that require the higher bandwidth and improved latency characteristics of DDR5 DRAM. The module’s key identifiers—16GB capacity, DDR5-4800 speed, PC5-38400 throughput, ECC error correction, and single-rank 1Rx8 architecture—make it a direct fit for systems that demand reliable, high-throughput memory for virtualization, database workloads, and mission-critical applications.

Performance Characteristics DDR5-4800 and PC5-38400 Explained

The designation DDR5-4800 indicates a data transfer rate of 4,800 mega-transfers per second (MT/s). In practical terms, paired with the module organization and memory channel configuration of compatible HPE servers, this translates to markedly improved memory throughput and concurrency compared to DDR4 generations. The label PC5-38400 corresponds to the theoretical maximum bandwidth of approximately 38.4 GB/s per module.

Advantages of DDR5 in Enterprise Servers

Transitioning from DDR4 to DDR5 memory brings notable benefits in bandwidth, efficiency, and reliability. The P58839-001 supports faster data rates, helping mission-critical applications such as virtualization, databases, analytics, and cloud workloads perform with greater responsiveness. ECC error checking protects against corruption, while the RDIMM structure enhances overall system stability.

ECC and Single-Rank Design

ECC (Error-Correcting Code) essential for server reliability

ECC memory detects and corrects single-bit errors and detects (but does not correct) some multi-bit errors. The HPE P58839-001's ECC capability protects data integrity in mission-critical environments by reducing silent data corruption risks. ECC is standard practice in enterprise servers, and HPE validates these modules on its platforms to ensure firmware and hardware-level compatibility with ECC functions such as machine check architecture (MCA) and correctable error logging.

Single Rank (1Rx8) vs. Multi-Rank modules

The single-rank (1Rx8) organization indicates each module exposes one rank to the memory controller and typically uses x8 DRAM chips. Single-rank modules can offer advantages in maximum populate density per memory channel and predictable timing behavior. They are often slightly more compatible with high-memory-density configurations and some server memory controller constraints, while dual-rank modules may deliver higher effective throughput in specific configurations due to interleaving across ranks.

Compatibility and Platform

HPE publishes validated memory lists and Interoperability matrices for its ProLiant and Synergy families. The P58839-001 is designed and validated to work with specific HPE server models that support DDR5 memory. Always consult the server Quick Specs or HPE support matrix for exact firmware versions and maximum supported DIMM population per CPU socket. Using manufacturer-validated memory reduces the risk of boot errors, degraded performance, or lack of support for advanced platform features like memory mirroring or sparing.

BIOS/UEFI and memory training

DDR5 modules undergo memory training at POST (Power-On Self Test). If the server fails to boot at advertised speeds, check BIOS settings for memory speed configuration (Auto vs. Manual), ensure firmware is updated, and reduce populated slot counts if testing for root-cause compatibility. HPE often provides memory tuning options that can improve stability in mixed-population environments.

Use Cases and Workload Suitability

Virtualization and Cloud Hosting

For virtualized environments, the combination of ECC and higher DDR5 bandwidth reduces I/O wait and improves VM density on a single host. The P58839-001 module is suitable where administrators need consistent performance and strict data integrity for multiple VMs running business-critical services.

Databases and In-Memory Analytics

In-memory databases, SAP HANA instances configured for smaller node sizes) benefit directly from DDR5’s increased throughput and concurrency. ECC protects dataset integrity in use cases where a corrupted memory bit could lead to data anomalies or application crashes.

High-Performance Computing (HPC) and Simulation

HPC workloads that rely on sustained memory bandwidth—such as simulation, numerical modeling, and large-scale data analysis—can leverage PC5-38400 capacity to reduce time-to-solution. The single-rank 1Rx8 modules provide predictable interleaving across channels, enabling consistent memory access patterns for compute-intensive tasks.