General

Engineer's Note

This 4GB DDR4-2400 RDIMM with ECC and a registered signal type is purpose-built for server environments demanding uncompromising data integrity and stable multi-DIMM operation, making it ideally suited for virtualization hosts, in-memory databases, and lightweight edge-computing nodes. Its single-rank x8 configuration minimizes electrical loading for faster command response, while the CL17 latency and 1.2V power envelope deliver a balance of low access delay and energy efficiency per channel.

Technical Specs & Insights

1. ECC error correction safeguards in-memory data integrity, essential for preventing silent data corruption in financial transactions or virtualization hosts.
2. Registered signal buffering stabilizes command and address lines, allowing dense server configurations to scale memory capacity without sacrificing signal integrity.
3. 2400 MT/s throughput ensures consistent memory bandwidth for concurrent database queries, bolstering application responsiveness under peak loads.
4. Operating at just 1.2 volts, the module reduces overall server power draw and thermal footprint, directly lowering cooling costs in data centers.
5. Single Rank x8 organization minimizes electrical loading on the memory channel, enabling higher memory population without compromising stability in multi-slot servers.

Why These Specs Matter

The MTA9ASF51272PZ-2G3B1IG server RDIMM addresses real pain points with ECC, Registered buffering, single‑rank x8 layout, and CAS‑17 latency. In virtualization clusters, ECC corrects silent bit flips that would otherwise crash multiple VMs or corrupt hypervisor data—keeping your farm stable. Registered logic buffers address and command signals, so fully loading system memory doesn’t force the memory controller to downclock; you maintain full 2400 MHz speed across all DIMMs for higher VM density. The single‑rank design cuts electrical reflections and inter‑rank turnaround delays, delivering more consistent latencies for mixed workloads. That payoff becomes tangible in an in‑memory database like Redis: a CAS latency of 17 cycles accelerates key‑value retrieval, and ECC guarantees that a flipped cell won’t silently return wrong data to a financial transaction. For IT teams running virtual infrastructure and caching layers, these features deliver ironclad data integrity, predictable low latency, and a platform that won’t silently compromise under errors.

Endurance & Reliability

The provided specifications (ECC, Registered, 288-pin DDR4) identify this as a server-grade RDIMM. With only 4 GB capacity per module, careful balancing of channels and slots is critical for different workloads.

General Virtualization
Populate all memory channels with identical 4 GB RDIMMs to maintain balanced bandwidth. A dual‑processor server using 8 modules per CPU (32 GB total) supports light virtualization. Scale by adding matched pairs, targeting 64–96 GB for moderate VM density.

In-Memory Database
Maximize capacity by filling all DIMM slots. A fully populated 24‑slot server yields 96 GB, sufficient for small in‑memory datasets. Use identical modules across every channel to preserve ECC integrity and low latency. For larger databases, deploy a multi‑node cluster.

High Performance Computing
Install one 4 GB RDIMM per memory channel to achieve peak bandwidth. A 12‑channel node with 48 GB meets many HPC memory‑per‑core targets. Increase memory by populating additional DIMMs per channel only if required, keeping ranks balanced.

Verified Compatibility

Strictly tested, compatible with servers: Dell PowerEdge R750, HPE ProLiant DL380 Gen10, Lenovo ThinkSystem SR650.

FAQ