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| Product Type | Memory Module |
|---|---|
| Compliance Standards | RoHS |
| Memory Capacity | 4 GB |
| Memory Technology | DDR3 |
| Product Voltage | 1.35V |
| RAM Speed | 1600MHz |
| RAM Standard | DDR3-1600/PC3-12800 |
| Error Identifying | ECC |
| Signal Type | Registered |
| Column Access Strobe (CAS) | CL11 |
| Rank | Dual Rank x8 |
| Quantity of Pins | 240-pin |
| RAM Genre | VLP RDIMM |
Designed for 1U rack servers and virtualized environments requiring reliable, space-efficient memory, this 4GB DDR3L-1600 VLP RDIMM operates at 1.35V with dual-rank x8 organization to balance capacity and interleaving performance in dense node configurations. Its registered ECC architecture ensures end-to-end data integrity under sustained memory database and virtualization workloads, while the very low-profile form factor minimizes airflow obstruction in compact chassis.
1. ECC error correction silently detects and fixes single-bit memory faults, protecting financial transactions and database records from undetected corruption in mission-critical server environments.
2. Registered signal buffering stabilizes the command and address buses when populating multiple DIMMs per channel, enabling reliable operation at full memory capacity for heavy virtualization workloads.
3. 1.35V low-voltage operation trims datacenter energy consumption and reduces cooling overhead, directly improving power usage effectiveness in dense rack deployments.
4. VLP RDIMM form factor fits ultra-low-profile 1U and blade server chassis, allowing maximum memory capacity without obstructing airflow or limiting CPU cooler clearance.
5. Dual Rank x8 organization leverages rank interleaving to hide row-cycle latencies, boosting effective memory throughput for concurrent virtual machines under sustained load.
When deploying virtualized clusters or in-memory databases, the MT18KDF51272PDZ-1G6K server memory module directly addresses the risks that keep IT managers awake at night. This DDR3-1600 VLP RDIMM’s ECC technology silently corrects single-bit errors before they corrupt a financial transaction or destabilize a hypervisor hosting dozens of virtual machines. Its registered buffers stabilize signal integrity when all 24 DIMM slots are populated, letting you scale to hundreds of gigabytes without the random reboots that plague unbuffered configurations—essential for keeping a Redis or SAP HANA instance fully in-RAM with deterministic latency. The dual-rank x8 organization interleaves memory banks, delivering higher sustained bandwidth during simultaneous VM live migrations and heavy query concurrency; you will notice shorter batch processing windows rather than theoretical numbers. Operated at 1.35V, this module cuts thermal load noticeably across a fully loaded rack, shrinking your cooling OpEx while the very low profile form factor fits seamlessly into 1U blade servers where every millimeter of clearance is contested. Ultimately, it transforms memory from a commodity component into a strategic asset for uptime and performance density.
General Virtualization
For light to moderate virtualization workloads, populate servers with at least six to eight of these 4 GB DDR3L-1600 RDIMMs per CPU to reach 24–32 GB. The low 1.35 V operation reduces power draw across dense VM hosts, while registered ECC ensures data integrity under multi-tenant memory pressure. Balance modules across memory channels to maintain bandwidth and avoid NUMA penalties.
In-Memory Database
In-memory databases such as Redis or SAP HANA demand both capacity and reliability. Deploy these modules in fully populated configurations across all channels, aiming for 64–128 GB per socket by installing 16–32 identical 4 GB RDIMMs. ECC and registered signal types guard against soft errors that could corrupt critical in-memory datasets, and dual-rank x8 designs deliver predictable latency at CL11.
High-Performance Computing
HPC clusters require maximum memory bandwidth and stability. Use one 4 GB RDIMM per channel across all available memory channels to enable optimal interleaving, typically resulting in 16–32 GB per compute node for small to mid-scale MPI jobs. The very low-profile form factor improves airflow in dense racks, and the 1.35 V registered interface keeps thermal envelopes tight while sustaining consistent 1600 MT/s throughput.
Rigorously validated server memory, compatible with Dell PowerEdge R720, HP ProLiant DL380p Gen8, and similar platforms.
Q: Can I mix this MT18KDF51272PDZ-1G6K with other memory modules of different brands or speeds?
A: Mixing Registered ECC modules of different brands or speeds is not recommended. It can cause instability or system failure. For reliable server operation, use identical modules with the same speed, rank, and timings across all channels.
Q: Is this memory compatible with my server system?
A: This DDR3-1600 Registered ECC VLP RDIMM is compatible with servers supporting 240-pin DDR3 Registered DIMMs, such as platforms using Intel Xeon E5-2400/2600 v1/v2 or AMD Opteron 6300 series. Verify that your motherboard specifies support for 1.35V low-voltage RDIMMs.
Q: What is the recommended DIMM population order for optimal performance?
A: Follow your server motherboard’s population guide. Typically, populate identical modules in matching colors or slots starting with channel 1 (A1, B1, etc.) to balance memory channels and enable interleaving. For dual-socket systems, evenly distribute capacity across both processors.
Q: Does this module support overclocking or XMP profiles?
A: No. This is a standard JEDEC-compliant Registered ECC module operating at DDR3-1600 with CL11. It does not support overclocking or XMP profiles, as server memory prioritizes stability and data integrity over performance tuning.
Q: What warranty and typical failure rate can I expect?
A: This module includes a one-year warranty. Enterprise Registered ECC memory typically demonstrates very low annualized failure rates, often below 0.5% under specified operating conditions, due to rigorous component screening and testing.