SK hynix HMA42GR7AFR4N-TF 16GB DDR4 2133MHz CL15 ECC Registered Dual Rank 1.2V 288-Pin Server RAM
- 16GB
- 288-Pin DDR4 SDRAM
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Brute Networks
64 GB DDR4-2666 ECC load-reduced DIMM with CL15 latency and 1.2 V operation for compatible Dell servers
This 64GB DDR4-2666 ECC LRDIMM targets administrators expanding memory in Dell-compatible servers. The 4Rx4 Load Reduced organisation allows higher density per channel than standard registered modules. It suits virtualisation hosts and database nodes that need maximum capacity within existing slots. The module runs at 1.2V and meets OEM specifications.
Standard DDR4 voltage of 1.2V keeps power draw predictable in populated chassis. Load Reduced buffering reduces electrical load on the memory controller, helping stability when all slots are filled. No active cooling is required on the module itself; airflow provided by the server chassis is sufficient. Acoustic impact is negligible compared to system fans.
Upgrading from smaller DDR4 modules eliminates swapping and lets each CPU address larger working sets. The jump is worth it when virtual machine density or in-memory database size is limited by current capacity. It does not suit platforms that only accept unbuffered UDIMMs or require different rank configurations. Compatibility follows the Dell 370-ADNH specification.
| Brand | Dell |
|---|---|
| Capacity | 64GB |
| Type | 288-Pin DDR4 SDRAM |
| Speed | DDR4 2666 (PC4 21300) |
| CAS Latency | CL15 |
| Voltage | 1.20V |
| ECC | Yes |
| Buffered/Registered | Load Reduced |
| Rank | 4Rx4 |
| Chipset | Major Brand Chipset |
Align the notch with the slot key, press firmly until both retention clips click, then verify the BIOS recognises the full 64GB at 2666 MHz; the step often missed is seating both ends evenly so the load-reduced register initialises correctly.
No scheduled maintenance is required; the module uses major-brand DRAM chips rated for continuous server operation, and if a correctable error count ever exceeds platform thresholds the DIMM would be replaced under the lifetime warranty.
The quad-rank density places the highest electrical load on the memory bus, so the platform's maximum DIMMs-per-channel limit is reached before thermal or voltage limits become a factor.
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