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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NEMIX RAM
A 1 TB DDR5 registered ECC memory kit of sixteen 64 GB modules running at 4800 MT/s CL40 and 1.1 V, built for the Dell PowerEdge XE9640
This NEMIX RAM kit supplies 1 TB of DDR5 memory in sixteen 64 GB registered ECC modules built for the Dell PowerEdge XE9640. Each module runs at 4800 MT/s with CL40 latency at 1.1 V using 288-pin RDIMM form factor. The 2Rx4 organisation and major-brand Samsung, Micron or Hynix chips target enterprise server workloads that demand error correction and registered buffering.
IT teams scaling a Dell PowerEdge XE9640 to its maximum supported memory will use this sixteen-module kit to fill every slot with 64 GB RDIMMs. Systems that require unbuffered UDIMMs, non-ECC memory, lower voltages, different pin counts or speeds other than DDR5 4800 cannot use these modules. Buyers needing smaller increments or consumer desktop compatibility should look elsewhere.
The decisive specification is the sixteen-module 1 TB configuration delivering 64 GB per registered ECC RDIMM at DDR5 4800 CL40 1.1 V. This exact kit matches the XE9640 slot count and density requirement; any deviation in module count, capacity per module, rank structure or voltage makes the kit incompatible with the target server.
| Brand | NEMIX RAM |
|---|---|
| Series | Dell Server/Workstation Compatible Series Memory |
| Model | Dell DDR5 4800MHZ ECC RDIMM Registered Server Memory |
| Part Number | MR38400-924K16 |
| Capacity | 1TB (16 x 64GB) |
| Speed | DDR5 4800 (PC5 38400) |
| ECC | Yes |
| Buffered/Registered | Registered |
| Chipset | Major OEM Samsung, Micron, Hynix |
| Voltage | 1.10V |
| Compatible System | Dell |
| CAS Latency | CL40 |
| Heat Spreader | No |
| Type | 288-Pin DDR5 RDIMM |
| Rank | 2Rx4 |
| Features | DDR5 ECC Registered RDIMM Server Motherboard Compatible |
| Package Content | 1TB (16X64GB) DDR5 4800MHZ PC5-38400 2Rx4 1.1V CL40 288-PIN ECC RDIMM Registered Server Memory |
Yes, the kit uses the standard 288-pin DDR5 RDIMM form factor that matches the XE9640 memory sockets.
Follow the Dell XE9640 service manual channel population order exactly; the step most often missed is seating each module until both retention clips click.
Replace the failed stick with another 64 GB DDR5 4800 CL40 2Rx4 1.10 V ECC RDIMM to keep the 1 TB kit matched.
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