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
256GB DDR5 ECC registered server memory kit with eight 32GB modules at 4800MHz CL40 and 1.1V for Thinkmate SuperServer systems
This 256GB kit contains eight 32GB registered DDR5 modules rated at 4800 MT/s with CL40 latency and 1.10V operation. It is built for THINKMATE SuperServer 421GE-TNRT and 421GE-TNRT3 systems that require ECC RDIMM memory. Each module uses a 1Rx4 organisation and 288-pin form factor.
Registered buffering reduces electrical load on the memory controller, helping signal integrity when all eight slots are populated. ECC detects and corrects single-bit errors during continuous server workloads. The 1.10V DDR5 voltage supports efficiency under long-running tasks. Modules are stress tested under load before shipment.
The 1Rx4 rank configuration determines whether the memory controller can address the full 256GB across eight slots. Systems that expect a different rank per DIMM may not recognise the full capacity. Verify the server’s qualified vendor list for 1Rx4 RDIMM support before purchase.
| Brand | NEMIX RAM |
|---|---|
| Series | THINKMATE Server/Workstation Compatible Series Memory |
| Model | THINKMATE DDR5 4800MHZ ECC RDIMM Registered Server Memory |
| Part Number | MR38400-314K8 |
| Capacity | 256GB (8 x 32GB) |
| 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 | 1Rx4 |
| Features | DDR5 ECC Registered RDIMM Server Motherboard Compatible |
| Package Content | 256GB (8X32GB) DDR5 4800MHZ PC5-38400 1Rx4 1.1V CL40 288-PIN ECC RDIMM Registered Server Memory KIT |
Each module operates at 1.10V, the standard DDR5 voltage, and the registered design helps the memory controller manage signal integrity efficiently across all eight 32GB sticks.
The motherboard needs eight free 288-pin DDR5 RDIMM slots and a BIOS that supports 1Rx4 ECC registered modules at 4800 MT/s.
Mixing ranks or latencies can prevent the system from training at 4800, so the safest approach is to populate all eight slots with this matched 8x32GB kit.
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