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
Eight 64 GB DDR4 3200 ECC registered DIMMs deliver 512 GB at 1.2 V with CL22 latency for Thinkmate VSX-R5-760S1 and VSX-R5-540RTP workstations
This 512GB kit contains eight 64GB registered DDR4 modules rated at 3200MHz with CL22 latency and 1.2V operation. It is built for THINKMATE VSX-R5-760S1 and VSX-R5-540RTP workstations that require ECC RDIMM memory. The 4Rx4 organization and PC4-25600 bandwidth suit multi-socket server boards designed for registered DIMMs.
Registered buffering reduces electrical load on the memory controller, allowing all eight modules to run at the rated 3200MHz speed under continuous multi-threaded workloads. ECC circuitry corrects single-bit errors and detects multi-bit errors without halting the system, which maintains data integrity during long compute jobs. The 1.20V voltage keeps power draw stable across extended periods.
The 288-pin DDR4 RDIMM form factor fits only slots keyed for registered memory; desktop UDIMM slots will not accept these modules. Populating all eight channels requires a motherboard that supports 4Rx4 ranks at full speed — some boards drop frequency when every slot is filled. Verify the workstation manual for the correct population sequence before installing. No heat spreaders are present, so airflow across the bare PCB must be adequate.
| Brand | NEMIX RAM |
|---|---|
| Series | THINKMATE Server/Workstation Compatible Series Memory |
| Model | THINKMATE DDR4 3200MHZ ECC RDIMM Registered Server Memory |
| Part Number | MR25600-944K8 |
| Capacity | 512GB (8 x 64GB) |
| Speed | DDR4 3200 (PC4 25600) |
| ECC | Yes |
| Buffered/Registered | Registered |
| Chipset | Major OEM Samsung, Micron, Hynix |
| Voltage | 1.20V |
| Compatible System | THINKMATE |
| CAS Latency | CL22 |
| Heat Spreader | No |
| Type | 288-Pin DDR4 RDIMM |
| Rank | 4Rx4 |
| Features | DDR4 ECC Registered RDIMM Server Motherboard Compatible |
| Package Content | 512GB (8X64GB) DDR4 3200MHZ PC4-25600 4Rx4 1.2V CL22 288-PIN ECC RDIMM Registered Server Memory KIT |
Each 64 GB module operates at 1.20 V standard DDR4 voltage; registered buffering and ECC add minimal overhead, so total power draw stays within typical DDR4 RDIMM limits for 3200 MT/s operation.
The board needs 288-pin DDR4 RDIMM slots that accept 4Rx4 registered ECC modules and a memory controller able to address 512 GB total capacity at PC4-25600 speed.
All slots will run at the speed and latency of the slowest installed module; the memory controller will down-clock this kit to match any older DDR4 RDIMMs present.
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