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
32GB DDR4-2133 ECC LRDIMM for Lenovo servers, CL15 at 1.20V with 4Rx4 organisation
This 32GB DDR4-2133 LRDIMM is built for Lenovo servers that require registered ECC memory. It runs at PC4-17000 speed with CL15 latency at 1.20V and uses a 4Rx4 organisation on a 288-pin module. The part matches Lenovo PN 4X70G78059 and carries a lifetime warranty.
This module fits systems that specifically call for 4Rx4 registered ECC LRDIMMs at DDR4-2133. It will not work in platforms limited to RDIMMs, UDIMMs or lower rank counts such as 1Rx4 or 2Rx4. Buyers who need a different rank configuration or a non-ECC type should look elsewhere.
The 4Rx4 organisation is the single specification that determines whether this LRDIMM will be accepted by the memory controller. Verify the server documentation for 4Rx4 support before ordering, as an incorrect rank layout will prevent the system from posting.
| Brand | Lenovo |
|---|---|
| Capacity | 32GB |
| Type | 288-Pin DDR4 SDRAM |
| Speed | DDR4 2133 (PC4 17000) |
| CAS Latency | CL15 |
| Voltage | 1.20V |
| ECC | Yes |
| Buffered/Registered | Registered |
| Rank | 4Rx4 |
| Chipset | Major Brand Chipset |
This is a 32GB DDR4-2133 LRDIMM running at 1.2V with CL15 latency. It uses a 4Rx4 organisation and major-brand chips from Samsung, SK Hynix or Micron. The module is 100% tested for LENOVO compatibility and carries a lifetime warranty from Brute Networks.
PC4-17000 indicates a peak transfer rate of 17000 MB/s per module. Actual throughput depends on the memory controller, channel population and BIOS settings, but the rated DDR4-2133 speed sets the upper limit for this LRDIMM.
The 288-pin DDR4 form factor supports higher speeds, but this specific module is validated at 2133 MT/s (PC4-17000). The registered 4Rx4 design and 1.2V operation are tuned for stable server operation at that frequency.
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