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
16 GB DDR5 ECC registered DIMM running at 4800 MHz for SuperMicro SuperWorkstation SYS-531A-I
This 16GB DDR5 4800 ECC RDIMM module is built for Supermicro SuperWorkstation SYS-531A-I systems requiring registered memory. It operates at 1.10V with CL40 latency and uses a 288-pin form factor. The single-rank 1Rx8 design uses major OEM chips from Samsung, Micron or Hynix.
This module fits builders expanding a compatible Supermicro platform with registered DDR5 memory. It is not for systems that require unbuffered UDIMMs, non-ECC modules, or speeds beyond the 4800 MT/s rating. Buyers needing higher capacities per slot or lower latencies should look at other configurations.
Installation follows typical server DIMM procedures: power down, open the chassis, align the 288-pin key, and press firmly until the ejectors lock. The most common issues are mixing registered and unbuffered modules, populating slots in the wrong order per the motherboard manual, or forgetting to enable ECC in the BIOS.
| Brand | NEMIX RAM |
|---|---|
| Series | SuperMicro Server/Workstation Compatible Series Memory |
| Model | SuperMicro DDR5 4800MHZ ECC RDIMM Registered Server Memory |
| Part Number | MR38400-618K1 |
| Capacity | 16GB |
| Speed | DDR5 4800 (PC5 38400) |
| ECC | Yes |
| Buffered/Registered | Registered |
| Chipset | Major OEM Samsung, Micron, Hynix |
| Voltage | 1.10V |
| Compatible System | Supermicro |
| CAS Latency | CL40 |
| Heat Spreader | No |
| Type | 288-Pin DDR5 RDIMM |
| Rank | 1Rx8 |
| Features | DDR5 ECC Registered RDIMM Server Motherboard Compatible |
| Package Content | 16GB (1X16GB) DDR5 4800MHZ PC5-38400 1Rx8 1.1V CL40 288-PIN ECC RDIMM Registered Server Memory |
The module is built for Supermicro SuperWorkstation SYS-531A-I with X13SRA-TF and needs a DDR5-capable registered DIMM slot running at 1.1V.
Yes, matched DDR5 4800 1.1V CL40 1Rx8 registered DIMMs can populate open slots on the same channel following the motherboard population rules.
Check BIOS memory information or OS tools such as dmidecode to confirm 16GB, DDR5-4800, ECC registered, 1Rx8 operation at 1.1V.
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