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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An 8 GB registered DDR4 server DIMM running at 2133 MT/s with CL15 latency, 1.20 V operation and ECC for Dell A7910487 systems
This 8GB registered DDR4 module uses a 288-pin layout and runs at 2133 MT/s with CL15 latency at 1.20V. It carries ECC protection and a 2Rx8 organisation for stable operation in multi-socket Dell servers. The part matches Dell PN A7910487 and is built with major-brand DRAM from Samsung, SK Hynix or Micron.
The jump is worth it when a Dell workstation or rack server requires registered ECC memory and the current configuration uses unbuffered modules or smaller DIMMs. Systems that must maintain factory warranty coverage while adding capacity benefit from the OEM-equivalent validation. Buyers who need unregistered UDIMMs or speeds above 2133 MT/s cannot use this module.
Registered buffering reduces electrical load on the memory controller, allowing consistent throughput during extended compute tasks such as virtualisation or database workloads. ECC corrects single-bit errors in real time, preventing silent data corruption over long runtimes. All modules in an order are identically matched to avoid timing drift across channels.
| Brand | Dell |
|---|---|
| Capacity | 8GB |
| Type | 288-Pin DDR4 SDRAM |
| Speed | DDR4 2133 (PC4 17000) |
| CAS Latency | CL15 |
| Voltage | 1.20V |
| ECC | Yes |
| Buffered/Registered | Registered |
| Rank | 2Rx8 |
| Chipset | Major Brand Chipset |
Yes, the 288-pin DDR4 RDIMM form factor matches Dell server DIMM slots designed for registered memory.
Align the notch on the 288-pin module with the slot key, press firmly until both retention clips click, and populate slots per the Dell server's channel guidelines.
Replace it if memory diagnostics report uncorrectable ECC errors, the server fails POST with beep codes, or you upgrade to higher-capacity modules.
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