General

Engineer's Note

This is a server-class DDR3 VLP RDIMM designed for dense virtualization and in-memory database workloads, where its dual-rank x4 organization with ECC and registered signal buffering ensures robust data integrity across highly populated memory channels. The 1.35V low-voltage operation and very low-profile form factor make it ideal for power-constrained rack servers and blade systems that demand reliable, high-density memory without sacrificing thermal headroom.

Technical Specs & Insights

1. ECC memory detects and corrects single-bit data errors on the fly, safeguarding long-running virtualization and database workloads against silent corruption.
2. Registered signal buffering stabilizes command and address lines across fully loaded memory channels, essential for scaling up capacity in multi-socket enterprise servers.
3. Very low profile RDIMM design maximizes airflow clearance in dense blade and 1U chassis, preventing thermal throttling in compute clusters.
4. Dual-rank architecture increases bank-level parallelism, sustaining higher throughput when numerous virtual machines contend for memory access simultaneously.
5. Low-voltage DDR3L operation cuts per-DIMM power consumption, reducing total cost of ownership for hyperscale deployments through cooler rack environments.

Why These Specs Matter

Built for the relentless demands of enterprise servers, this module—identified by its VLP RDIMM format, ECC, and registered signal type—delivers essential resilience where consumer-grade memory would fail. In a dense virtualization cluster hosting dozens of VMs, a single undetected bit flip can corrupt a transactional database or crash critical services; the integrated ECC actively detects and corrects such errors, safeguarding uptime and data integrity. The registered buffer re-drives address and command signals, stabilizing signal integrity when all 24 DIMM slots are populated, which allows you to scale memory capacity confidently without random system instability. Meanwhile, the dual-rank x4 organization interleaves memory banks, meaning your in-memory database or analytics workloads benefit from measurably higher sustained bandwidth and lower latency under concurrent access—real speed when millions of queries hit the dataset simultaneously. Its 1.35V low-voltage operation reduces thermal load inside rack-dense environments, and the VLP form factor eases airflow in compact 1U nodes. For your virtualized workloads or RAM-hungry database instances, this module means fewer silent data corruptions, smoother scalability, and better performance per watt.

Endurance & Reliability

The specifications—DDR3-1333, ECC, Registered, 1.35V, 240-pin—identify this 16GB module as server memory (VLP RDIMM). Capacity planning should align with workload demands.

General Virtualization
Install at least one DIMM per memory channel for balanced bandwidth. A typical dual-socket server with 8 such modules delivers 128 GB, comfortably hosting 20–30 medium VMs while ECC safeguards data. The 1.35V low-voltage operation helps minimize overall power draw in dense virtualization clusters.

In-Memory Database
Fill all DIMM slots to achieve maximum capacity, e.g., 24 modules for 384 GB, enabling entire datasets to reside in RAM for ultra-low latency. Registered DIMMs support high slot counts, and ECC is essential for data integrity. The low voltage also curbs cooling demands in packed racks.

High Performance Computing
Configure one DIMM per channel (1DPC) to sustain the rated 1333 MHz speed without throttling. A dual-socket node with 12 modules yields 192 GB of high-bandwidth memory; the dual-rank x4 construction enables efficient rank interleaving. The VLP profile improves airflow in dense compute sleds.

Verified Compatibility

Rigorously tested, verified compatible with Dell PowerEdge R720/R620, HP DL380p Gen8, Lenovo System x3650 M4.

FAQ