General

Engineer's Note

This 32GB DDR5-4800 RDIMM with registered signaling and ECC is purpose-built for server platforms running virtualization, in-memory databases, or other mission-critical workloads that demand uncompromising data integrity. Its single-rank x4 configuration minimizes bus loading per channel, enabling robust multi-DIMM population at full speed while the integrated ECC engine seamlessly corrects single-bit errors to sustain 24/7 operational reliability.

Technical Specs & Insights

1. Hardware error correction automatically detects and remedies single-bit memory faults, safeguarding data integrity for mission-critical enterprise applications running around the clock.
2. The registered clock driver buffers command and address signals, enabling the deployment of high-capacity memory stacks without signal degradation across large server fleets.
3. Generous module capacity elevates memory density per node, allowing hypervisors to host more virtual machines and supporting expansive in-memory datasets without swapping.
4. DDR5 architecture doubles internal bank groups and burst length, delivering substantially higher bandwidth to accelerate real-time analytics and AI training workloads.
5. Single Rank x4 organization utilizes narrow DRAM devices to enable granular error correction, strengthening system resilience against chip failures during prolonged compute sessions.

Why These Specs Matter

The MTC20F1045S1RC48B is a 32GB DDR5-4800 RDIMM built explicitly for modern server environments, and its four defining characteristics directly address the real-world pressures of enterprise data centers. When your virtualization cluster hosts dozens of mission-critical VMs on a single node, memory errors are not a minor nuisance; a single uncorrected bit-flip can crash entire services or silently corrupt financial transactions. That is why the integrated ECC continuously scrubs and corrects single-bit errors, preserving data integrity without performance loss. Meanwhile, the registered signal buffer stabilizes command and address lines under heavy load, so you can populate all channels with high-capacity DIMMs without risking signal degradation or boot failures—a stark contrast to unregistered alternatives that buckle as density climbs. For in-memory databases like SAP HANA or real-time analytics platforms, the 4800 MT/s speed paired with a single-rank x4 organization delivers superior bandwidth and optimized latency. The single-rank architecture reduces bus contention and enhances command scheduling efficiency, letting each data request complete faster under concurrent access patterns. The result is a tangible uplift in transactions per second, not just synthetic benchmarks. Finally, operating at a low 1.1 V, this module trims power draw per DIMM, which accumulates into meaningful savings on electricity and cooling across a rack full of servers—directly lowering your total cost of ownership while keeping performance reliably high.

Endurance & Reliability

General Virtualization
For a dual-socket server, deploying 16 x 32 GB RDIMMs (512 GB total) provides an optimal balance of density and cost per core, supporting roughly 100–120 medium-sized VMs. Stick to one DIMM per channel (1DPC) at 4800 MHz to avoid speed degradation, enabling consistent latency for mixed workloads. This configuration allows future expansion by leaving half the slots free, scaling to 1 TB when needed.

In-Memory Database
Maximize bandwidth by populating eight 32 GB modules across eight channels for a 256 GB footprint, crucial for Redis or SAP HANA workloads that demand sub-microsecond response. Use single-rank x4 DIMMs like this module to keep rank count low per channel, sustaining 4800 MT/s while leaving thermal headroom. Active ECC scrubbing is essential here to protect in-flight data integrity without performance penalties.

HPC
Build a balanced configuration of 16 x 32 GB (512 GB) across two sockets, aligning with typical 64-core nodes so each core gets 8 GB. Maintain 1DPC to preserve full 4800 MHz speed, critical for memory-bandwidth-bound simulations in CFD or weather modeling. Registered ECC minimizes silent data corruption during week-long parallel runs, and the single-rank design reduces electrical loading on the memory bus.

Verified Compatibility

This rigorously tested DDR5 RDIMM is compatible with Dell PowerEdge R760, HPE ProLiant DL380 Gen11, Lenovo ThinkSystem SR650 V3.

FAQ