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 DDR4-2933 ECC registered RDIMM, 1Rx4 at 1.2 V, HPE P38448-B21 compatible
This registered DIMM delivers 16GB of DDR4-2933 ECC memory for HPE ProLiant servers. It operates at 1.2V with a 1Rx4 organisation and uses major-brand DRAM chips. The module matches HPE part number P38448-B21 and is designed for multi-socket platforms that require registered, error-correcting memory.
Replacing smaller registered DIMMs with this 16GB stick increases total system memory without changing voltage or speed. The jump is worthwhile when workloads exceed the current capacity limit or when unbuffered modules cause instability in a registered-only architecture.
The module seats in any DDR4 RDIMM slot keyed for 1.2V operation. Orders ship with identically matched sticks so all populated channels share the same timings and rank configuration. Mixing unmatched ranks or voltages is the most common cause of boot failure or reduced performance.
| Brand | HPE |
|---|---|
| Capacity | 16GB |
| Type | 288-Pin DDR4 SDRAM |
| Speed | DDR4 2933 (PC4 23400) |
| Voltage | 1.20V |
| ECC | Yes |
| Buffered/Registered | Registered |
| Rank | 1Rx4 |
| Chipset | Major Brand Chipset |
The module uses the standard 288-pin DDR4 RDIMM form factor, so it fits any server DIMM slot wired for DDR4 registered memory.
Install the DIMM in the slot sequence recommended by your server's service guide; the common mistake is skipping the first slot of a channel, which prevents the memory controller from initialising the rank.
Each module carries a lifetime warranty and orders are fulfilled with identically matched parts, so a single failed 16GB DIMM can be replaced without changing the rest of the kit.
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