HPE 32GB 1Rx4 PC5-4800B-R RDIMM SmartMemory

The HPE 32GB 1Rx4 PC5-4800B-R RDIMM SmartMemory (P43329-B21) is a DDR5-4800 registered ECC DIMM engineered for HPE ProLiant Gen11 servers. Built on a single-rank, x4 chip-width architecture, this 288-pin RDIMM operates at 4800 MT/s with a native DDR5 voltage of 1.1V, delivering a substantial leap in bandwidth and power efficiency over previous DDR4 generations. The module is designed and validated exclusively within HPE's SmartMemory ecosystem, enabling the server's Intelligent Memory platform to authenticate the DIMM and unlock advanced RAS features including on-die ECC, post-package repair, and proactive memory health monitoring through HPE iLO 6.

As a 1Rx4 configuration, the module places all 32GB of capacity on a single rank using x4-wide DRAM devices, optimizing signal integrity and compatibility in high-density multi-DIMM configurations. The registered (buffered) design incorporates an RCD (Registering Clock Driver) that re-drives command, address, and control signals, allowing stable operation across the full DIMM slot population of supported HPE platforms. This architecture is particularly well-suited for workloads that demand consistent, low-latency memory access at scale, such as in-memory analytics, large virtual machine deployments, and AI inference serving.

HPE SmartMemory certification ensures the module has undergone rigorous validation against HPE server firmware and thermal envelopes, providing a verified bill of materials and enabling memory-specific telemetry. When seated in a certified HPE Gen11 platform, SmartMemory unlocks the Advanced Memory Protection feature set and provides detailed logging of correctable and uncorrectable error events directly within HPE iLO 6 and HPE OneView management frameworks, supporting compliance-driven datacenter operations across enterprise, government, and cloud-adjacent environments.

Ideal for

• High-density virtualization hosts running VMware vSphere or Microsoft Hyper-V, where per-slot capacity and ECC reliability are critical to consolidation ratios
• In-memory database acceleration for SAP HANA, Oracle Database In-Memory, and Redis Enterprise deployments requiring sustained high-bandwidth, low-latency DRAM access
• AI and machine learning inference servers where large model weight sets must reside entirely in DRAM to minimize serving latency on HPE ProLiant Gen11 platforms
• Enterprise private cloud infrastructure built on HPE GreenLake or HPE Synergy composable compute, requiring authenticated SmartMemory for policy-based provisioning
• Mission-critical ERP and financial transaction processing environments where registered ECC and proactive fault detection through iLO 6 support continuous availability requirements
• Datacenter refresh and server expansion projects in UAE, GCC, EMEA, and APAC regions standardizing on HPE Gen11 compute with validated DDR5 memory configurations

Technical specifications

Available from Omnixon Global. Submit an RFQ and our team will confirm configuration and availability for your order.