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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A-Tech
8GB DDR4 2400 ECC RDIMM server memory with registered design for HP systems
This 8 GB registered module runs at DDR4 2400 with CL17 latency and 1.20 V operation. It is built for HP ProLiant and compatible server platforms that require ECC error correction and registered signal buffering. The single-rank 1Rx8 organisation suits configurations that populate many DIMM slots per channel. Administrators expanding memory in supported systems will find a direct drop-in part.
ECC circuitry detects and corrects single-bit errors during continuous operation, preventing silent data corruption in long-running workloads. Registered signalling reduces electrical load on the memory controller, keeping timing margins stable when all 288-pin slots are populated. The module maintains its rated 2400 MT/s throughput under extended duty cycles typical of virtualization hosts and database servers.
This part replaces any of the listed HP part numbers such as 805347-B21, 809080-591, 819410-001, 851353-B21, 853287-091 or 854592-B21. The jump is worthwhile when the platform supports DDR4 2400 registered ECC and the current configuration has free DIMM slots or lower-capacity modules. It does not suit systems that require unbuffered UDIMMs, higher speeds or capacities beyond 8 GB per slot.
| Brand | A-Tech |
|---|---|
| Capacity | 8GB |
| Speed | DDR4 2400 (PC4 19200) |
| CAS Latency | CL17 |
| Voltage | 1.20V |
| ECC | Yes |
| Buffered/Registered | Registered |
| Rank | 1Rx8 |
| Chipset | Major Brand Chipset |
| Features | Major Brand Chips |
The module operates at the standard DDR4 voltage of 1.20V, which is the baseline for DDR4 power consumption; actual draw depends on the platform's memory controller and workload.
A server or workstation motherboard with DDR4 RDIMM slots, registered ECC support in the chipset or CPU, and a memory controller qualified for DDR4 2400 operation.
Mixing is possible only if the platform supports mixed-rank and mixed-speed populations; the system will run all modules at the lowest common speed and may require specific slot placement per the vendor's memory population rules.
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