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
ECC-registered DDR4 kit delivering 64 GB across four 16 GB modules at 3200 MT/s for ThinkMate Supermicro servers
This 64GB kit contains four 16GB DDR4 3200 registered ECC RDIMMs built for ThinkMate Supermicro SuperServer platforms. Each module runs at 1.20V with CL22 latency and a 1Rx8 organisation. The 288-pin form factor matches the memory slots on the listed 620 and 220 series servers. No heat spreaders are fitted on these modules.
Administrators expanding a ThinkMate Supermicro SuperServer 620P-TR, 620P-TRT, 220P-C9R or 220P-C9RT will find direct compatibility. Builders using other motherboards or workstations should verify registered ECC RDIMM support before purchasing. Systems that require unbuffered memory or non-ECC modules cannot use this kit. Laptops and standard desktop boards are not supported.
The decisive specification is the registered ECC RDIMM format combined with DDR4 3200 speed and 1.20V operation. Only motherboards designed for registered error-correcting modules at this data rate will POST correctly with all four sticks installed. Mixing with unbuffered or non-ECC memory will prevent boot.
| Brand | NEMIX RAM |
|---|---|
| Series | THINKMATE Server/Workstation Compatible Series Memory |
| Model | SuperMicro DDR4 3200MHZ ECC RDIMM Registered Server Memory |
| Part Number | MR25600-618K4 |
| Capacity | 64GB (4 x 16GB) |
| 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 | 1Rx8 |
| Features | DDR4 ECC Registered RDIMM Server Motherboard Compatible |
| Package Content | 64GB (4X16GB) DDR4 3200MHZ PC4-25600 1Rx8 1.2V CL22 288-PIN ECC RDIMM Registered Server Memory KIT |
Power down the server, open the chassis, align each module notch with the slot key, press firmly until both retention clips click, then verify in BIOS that all 64GB are detected at 3200 MT/s; the step often missed is seating both clips fully on every module.
No routine maintenance is required; the modules have no heat spreaders to clean, and ECC corrects single-bit errors transparently — only a failed module would need replacement under the lifetime warranty.
The CAS 22 latency at 3200 MT/s sets the timing ceiling; thermals stay low at 1.2 V without spreaders, so latency — not temperature — is the first bound reached under continuous load.
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