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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Brute Networks
16 GB DDR4-2133 CL15 registered ECC RDIMM for Lenovo servers, 2Rx4 1.2 V operation
This 16GB DDR4-2133 RDIMM is built for Lenovo systems that require registered ECC memory. It runs at PC4-17000 speed with CL15 latency and 1.20V operation. The 2Rx4 organisation suits dual-rank channel populations. Buyers who need unbuffered UDIMMs or faster JEDEC speeds cannot use this module.
The registered buffer reduces electrical load on the memory controller during continuous server workloads. ECC corrects single-bit errors without halting the system. Major-brand DRAM from Samsung, SK Hynix or Micron maintains stability across extended duty cycles. Modules are supplied matched to avoid timing drift between slots.
The 288-pin DDR4 form factor fits standard server DIMM sockets; the registered design requires a compatible chipset that supports RDIMMs. Mixing with unbuffered memory will prevent boot. Populate slots per the server manual to enable proper rank interleaving. No special tools or firmware steps are needed beyond normal seating.
| Brand | Lenovo |
|---|---|
| Capacity | 16GB |
| Type | 288-Pin DDR4 SDRAM |
| Speed | DDR4 2133 (PC4 17000) |
| CAS Latency | CL15 |
| Voltage | 1.20V |
| ECC | Yes |
| Buffered/Registered | Registered |
| Rank | 2Rx4 |
| Chipset | Major Brand Chipset |
At 1.20V the RDIMM draws less power per gigabyte than older 1.35V or 1.5V server DIMMs, so it generates less heat in a fully populated chassis running all day.
The platform must support registered DDR4 ECC memory with 2Rx4 organisation; standard unbuffered desktop boards will not recognise the module.
Yes, the module follows JEDEC SPD profiles and will run at the lowest common speed populated in the memory controller.
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