HMT31GR7CFR4A-PB Hynix 1x8GB DDR3 ECC RAM

Low-Profile DDR3L ECC Registered Server Memory Module for stable legacy expansion with the HMT31GR7CFR4A-PB

The HMT31GR7CFR4A-PB is an SK hynix DDR3L ECC RDIMM designed to extend the service life of DDR3-based Xeon and Opteron platforms where memory integrity and predictable latency are mandatory. As a registered 72-bit module, it reduces electrical loading on the memory channel compared to unbuffered DIMMs, supporting higher population levels and more consistent behavior in multi-DIMM server configurations.

Built as a 240-pin low-profile RDIMM, the HMT31GR7CFR4A-PB fits dense chassis and airflow-sensitive nodes while maintaining enterprise-grade ECC protection for virtualisation, general-purpose compute, and appliance workloads. With DDR3-1600 (PC3L-12800R) operation and a dual-rank x4 organisation, it aligns with common DDR3 memory controllers for balanced throughput and fault tolerance, while DDR3L 1.35V helps reduce per-node power draw in scale-out racks. Deploy the HMT31GR7CFR4A-PB to standardise memory footprints across fleets and to stabilise performance under mixed VM and I/O activity.

Why Choose the HMT31GR7CFR4A-PB?

The HMT31GR7CFR4A-PB provides a practical density-to-reliability upgrade path for environments committed to DDR3 platforms, enabling controlled scaling without altering CPU, storage, or PCIe topologies. Its registered design supports repeatable deployments across populated channels, and ECC operation reduces operational risk for long-running services and storage/networking appliances.

SK hynix engineering focuses on signal integrity, qualification discipline, and consistent bill-of-materials control to meet enterprise uptime expectations. The module’s low-voltage DDR3L profile and RoHS compliance align with modern data centre lifecycle and sustainability requirements while preserving compatibility with established server standards.

Key Applications:

• Legacy Xeon/Opteron memory expansion
• Virtualisation hosts on DDR3 platforms
• General-purpose compute nodes
• Storage and networking appliances requiring ECC RDIMMs

At Happyware - Server Hardware you benefit from non-binding offers tailored to your refresh or spare-stock requirements for the HMT31GR7CFR4A-PB, ensuring procurement aligns with validated configurations. For multi-node rollouts, bulk order discount options support consistent fleet standardisation while optimising total acquisition cost.