General

Engineer's Note

This 8GB DDR4-2400 UDIMM is a dual-rank x8 module ideal for desktop productivity and content creation workloads, where its dual-rank interleaving boosts effective bandwidth over single-rank designs. Its unbuffered architecture and CL17 latency deliver stable, low-latency signaling for responsive multitasking and reliable operation in mainstream platforms.

Technical Specs & Insights

1. Ample capacity handles simultaneous browser tabs, office suites, and light media editing without forcing the system to borrow from slower storage.
2. Elevated transfer rate ensures game textures stream instantly and frame times remain consistent, giving players fluid visuals in open-world titles.
3. Tight CAS timing reduces the delay before data delivery, translating into snappier keystroke-to-action response during competitive multiplayer sessions.
4. Dual-rank interleaving alternates access across memory blocks, accelerating parallel workloads like real-time rendering and heavy spreadsheet computation.
5. Low voltage operation curbs thermal output inside the case, helping air-cooled rigs maintain boost clocks longer during extended creative sessions.

Why These Specs Matter

The M391A1G43EB1-CRCQ is a desktop UDIMM, identifiable by its 288-pin, unbuffered, Non-ECC design—a configuration purpose-built for enthusiast and professional desktop users rather than servers or laptops. Its four defining characteristics directly address the real frustrations of gamers and content creators. The dual-rank x8 organization delivers outstanding bandwidth through bank interleaving: when you are editing a 4K video in DaVinci Resolve while a render queue runs in the background, this architecture keeps both tasks fluid instead of stuttering. Combined with a 2400MHz clock speed and a tight CAS latency of CL17, the module feeds your CPU with instant data, translating into higher minimum frame rates in competitive AAA titles and demonstrably faster shader compilation. Operating at a low 1.2V, it generates minimal waste heat inside your chassis—a vital advantage during extended rendering sessions where your GPU and CPU already push thermal limits, preserving quiet fan curves and long-term platform stability. Finally, as a widely compatible standard UDIMM, it represents a risk-free drop-in upgrade that eliminates hours of debugging memory training failures, letting you focus purely on creative work or high-refresh gaming.

Endurance & Reliability

Gaming Build
For dual-channel gaming setups, install a matched pair of these 8 GB DDR4-2400 UDIMMs to achieve a 16 GB kit running in symmetric interleaved mode, which significantly improves frame-time consistency over a single module. If your budget allows, extend to a 32 GB configuration by populating all four DIMM slots with identical 8 GB sticks, ensuring that the dual-rank x8 organization on each module already provides solid rank interleaving without overtaxing the memory controller.

Content Creation
Content creation workloads such as 4K video editing and 3D rendering thrive on capacity, and a 64 GB arrangement using eight of these 8 GB dual-rank modules delivers ample headroom for large timeline previews and complex scenes. Populate two modules per channel across four channels if your platform supports it, or fully load a four-slot consumer board to maintain dual-channel operation while maximizing density — the CL17 latency at 2400 MHz remains acceptable for throughput-oriented tasks where capacity outweighs absolute speed.

General Productivity
For office multitasking, web browsing, and light spreadsheets, a single 8 GB stick represents the most cost-effective entry point, leaving one slot free for a future upgrade. If you frequently work with dozens of browser tabs and multiple Office files simultaneously, installing two modules for a 16 GB dual-channel configuration eliminates memory pressure and utilizes the modest bandwidth gains of interleaving to keep everyday responsiveness smooth without overspending.

Verified Compatibility

Compatible with Dell OptiPlex, HP EliteDesk, Lenovo ThinkCentre desktops after rigorous testing.

FAQ