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
Six 16 GB DDR5 4800 CL40 ECC registered DIMMs add 96 GB of 1.1 V server memory for the ThinkMate GPX-XH8-22S4-8GPU
This 96GB kit contains six 16GB DDR5 4800 registered DIMMs built for the Thinkmate GPX-XH8-22S4-8GPU server. Each module runs at 1.1V with CL40 latency and uses a 1Rx8 organisation. The registered design adds a buffer that helps the memory controller maintain signal integrity across all populated slots.
Operating at the standard 1.10V DDR5 voltage, the modules draw minimal power per stick and run without heat spreaders. Passive cooling relies on the server's directed airflow across the 288-pin PCB. Registered buffering reduces electrical load on the memory bus, contributing to stable operation under sustained multi-GPU workloads.
The six-module kit fills half the available channels in a single operation, delivering 96GB of ECC-protected capacity immediately. Matching rank, speed and voltage across every DIMM prevents timing mismatches that can cause boot failures or corrected errors. No additional software or firmware is included; compatibility is validated at the hardware level for the target platform.
| Brand | NEMIX RAM |
|---|---|
| Series | THINKMATE Server/Workstation Compatible Series Memory |
| Model | THINKMATE DDR5 4800MHZ ECC RDIMM Registered Server Memory |
| Part Number | MR38400-618K6 |
| Capacity | 96GB (6 x 16GB) |
| Speed | DDR5 4800 (PC5 38400) |
| ECC | Yes |
| Buffered/Registered | Registered |
| Chipset | Major OEM Samsung, Micron, Hynix |
| Voltage | 1.10V |
| Compatible System | THINKMATE |
| CAS Latency | CL40 |
| Heat Spreader | No |
| Type | 288-Pin DDR5 RDIMM |
| Rank | 1Rx8 |
| Features | DDR5 ECC Registered RDIMM Server Motherboard Compatible |
| Package Content | 96GB (6X16GB) DDR5 4800MHZ PC5-38400 1Rx8 1.1V CL40 288-PIN ECC RDIMM Registered Server Memory KIT |
Power off the server, open the chassis, align each module's key notch with the slot, press firmly until both ejector clips click, then verify in BIOS that all 96GB are detected at 4800 MT/s — the step most often missed is seating the module until both clips engage fully.
No routine maintenance is required; the modules have no heat spreaders and run at 1.1V, so keep server airflow clean and monitor ECC corrected-error counts — replace any module only if uncorrectable errors appear or capacity expansion is needed.
The DDR5 4800 CL40 specification and 1.1V operating voltage set the bandwidth and latency ceiling; sustained throughput will hit the 38400 MB/s PC5-38400 rating before thermal throttling becomes a factor.
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