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 32GB dual-channel DDR4 ECC UDIMM kit running at 3200 MT/s with CL22 latency for SuperMicro systems
This NEMIX RAM kit provides 32 GB of DDR4 3200 ECC UDIMM memory across two 16 GB modules. It is built for SuperMicro B3ST1-CPU-001 systems that require error-correcting unbuffered DIMMs. The modules run at 1.20 V with CL22 timing and use 2Rx8 organisation. They are suited for administrators upgrading compatible SuperMicro servers or workstations.
Buyers whose motherboards only accept non-ECC unbuffered memory cannot use this kit because the modules implement ECC. Systems that require registered or load-reduced DIMMs are also incompatible with these unbuffered sticks. Anyone needing capacities beyond 32 GB or speeds above DDR4 3200 should look at other configurations.
Installation consists of aligning each 288-pin module with the slot key and pressing until the retention clips engage. The kit ships without heat spreaders, so clearance around tall CPU coolers is rarely an issue. The most common mistake is mixing these ECC UDIMMs with non-ECC or registered modules, which prevents the system from posting. Always populate slots per the motherboard manual for the correct channel configuration.
| Brand | NEMIX RAM |
|---|---|
| Series | SuperMicro Server/Workstation Compatible Series Memory |
| Model | SuperMicro DDR4 3200MHZ ECC Unbuffered UDIMM |
| Part Number | ME25600-628K2 |
| Capacity | 32GB (2 x 16GB) |
| Speed | DDR4 3200 (PC4 25600) |
| ECC | Yes |
| Buffered/Registered | Unbuffered |
| Chipset | Major OEM Samsung, Micron, Hynix |
| Voltage | 1.20V |
| Compatible System | Supermicro |
| CAS Latency | CL22 |
| Heat Spreader | No |
| Type | 288-Pin DDR4 ECC UDIMM |
| Rank | 2Rx8 |
| Features | DDR4 ECC Unbuffered UDIMM Motherboard Compatible |
| Package Content | 32GB (2X16GB) DDR4 3200MHZ PC4-25600 2Rx8 1.2V CL22 288-PIN ECC Unbuffered UDIMM KIT |
The kit is validated for the SuperMicro B3ST1-CPU-001 motherboard; the board must provide 288-pin DDR4 slots that accept unbuffered ECC modules at 1.20 V.
Mixing ECC and non-ECC DIMMs on the same board typically disables ECC and forces both sets to run at the lowest common speed and voltage.
Check the BIOS memory information or a tool such as CPU-Z; it should report 3200 MT/s, CL22 timings, 1.20 V and ECC active.
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