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| Model | M391A1K43BB1-CRC00 |
|---|---|
| Compliance Standards | EU RoHS,FCC |
| Product Type | Memory Module |
| Memory Capacity | 8 GB |
| Memory Technology | DDR4 |
| Product Voltage | 1.2V |
| RAM Speed | 2400MHz |
| RAM Standard | DDR4-2400/PC4-19200 |
| Error Identifying | ECC |
| Signal Type | Unbuffered |
| Column Access Strobe (CAS) | CL17 |
| Rank | Single Rank x8 |
| Quantity of Pins | 288-pin |
| RAM Genre | UDIMM |
This is an unbuffered ECC DDR4 module tailored for entry-level servers and workstations where data integrity is critical. Its Single Rank x8 organization and CL17 latency deliver stable 2400 MT/s throughput with error correction, making it ideal for file servers, light virtualization, and mission-critical edge computing.
1. Integrated ECC actively detects and corrects single-bit errors, safeguarding critical data integrity for always-on services like financial transaction logs or medical record systems.
2. This capacity density supports essential system operations and moderate virtualization loads, striking a cost-efficient balance for lightweight hypervisor and edge server deployments.
3. The DDR4 speed grade delivers consistent memory throughput, effectively handling concurrent requests to keep response times low on small-scale web and database servers.
4. Low operating voltage cuts overall power consumption and reduces thermal stress, helping data centers lower cooling bills and improve energy efficiency in dense rack configurations.
5. Unbuffered architecture eliminates register latency, pairing ECC protection with fast signal paths for entry-level server builds where responsive performance matters as much as uptime.
Based on the 288-pin UDIMM form factor and ECC support, the M391A1K43BB1-CRC00 is an unbuffered server memory module designed for entry-level servers and workstations where data integrity meets cost‑effective performance. Its four key characteristics translate directly into real‑world reliability for demanding business workloads.
The ECC error correction is your safety net against silent data corruption. In a virtualization cluster running multiple VMs on a single node or in an in‑memory database like Redis, a single‑bit flip from background radiation can crash critical services or return wrong financials. ECC detects and corrects those errors automatically, keeping your transactions accurate and your uptime numbers up.
The 2400MHz speed and single‑rank x8 organization balance latency and signal integrity. When you are saturating a hypervisor with a mix of database and web servers, the predictable CL17 latency avoids I/O bottlenecks, while the single‑rank design eases the memory controller load, allowing you to populate all four DIMM slots without dropping to a lower speed—vital when you need to scale memory capacity for more VMs.
Finally, the 1.2V low‑voltage operation reduces the thermal footprint inside a compact 1U server or a small‑form‑factor workstation. Less heat means lower fan speeds and less dust build‑up over a 24/7 lifecycle, directly lowering your total cost of ownership while preserving performance. Together, these features mean you deploy one module that keeps your applications responsive, your data safe, and your infrastructure lean.
General Virtualization
For modest virtualization hosts using hypervisors like VMware ESXi or Proxmox, deploy this 8 GB ECC UDIMM in pairs to maintain memory interleaving and error resilience. Aim for at least four modules (32 GB total) to comfortably host a handful of lightweight VMs; scale by populating all available channels with identical 8 GB sticks to maximize bandwidth without sacrificing ECC protection.
In-Memory Database
In-memory databases such as Redis or SAP HANA demand both capacity and data integrity, making ECC non‑negotiable. Populate every DIMM slot with this 8 GB module to reach 64–128 GB, ensuring the dataset fits entirely in RAM. Because latency is critical, configure one module per channel to avoid rank contention and keep CAS 17 timing tight.
High-Performance Computing
HPC workloads benefit from ECC‑guarded memory when running long‑duration simulations. Use a fully balanced population—six or eight identical 8 GB UDIMMs—to exploit all memory channels and deliver peak GB/s. For dual‑socket nodes, evenly distribute modules across sockets to maintain NUMA locality and prevent silent data corruption during MPI‑parallel jobs.
Rigorously tested, compatible with Dell PowerEdge R240, HPE DL20 Gen10, Lenovo ST250, and more.
Q: Can I mix this M391A1K43BB1-CRC00 with other memory modules of different brands or speeds?
A: Mixing modules is not recommended as it may cause system instability. For guaranteed server reliability, use identical M391A1K43BB1-CRC00 modules with the same speed, rank, and ECC support.
Q: Is this memory compatible with my system?
A: This ECC UDIMM is built for server platforms supporting DDR4, such as Intel Xeon E3-1200 v5/v6 or AMD Ryzen Pro series. Please confirm compatibility against your server motherboard’s official QVL list.
Q: What is the recommended DIMM population order for optimal performance?
A: Follow your server motherboard manual. Typically, populate the farthest slot from the CPU in each channel first. Use matched pairs to enable dual-channel mode and maximize memory bandwidth.
Q: Does this module support overclocking or XMP profiles?
A: No. This is a JEDEC-compliant server memory module fixed at 2400MHz with no XMP profile support. Overclocking is disabled to maintain the strict stability required by server environments.
Q: What warranty and typical failure rate can I expect?
A: This module includes a 1-year warranty. As an enterprise-grade component, its expected annualized failure rate is extremely low, delivering the sustained reliability demanded by server operations.