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
HP-compatible 8GB DDR4-2133 registered ECC RDIMM, CL15, 1.2V, part 803656-081 for server upgrades
This 8GB DDR4-2133 registered DIMM is built to HP part number 803656-081 and uses major-brand DRAM from Samsung, SK Hynix or Micron. It runs at 1.20V with CL15 latency and includes ECC error correction for data integrity in server workloads. The module is validated for 100% compatibility with supported HP systems and ships new with a lifetime warranty.
This module suits administrators expanding memory in HP servers that accept PC4-17000 registered ECC DIMMs. It is not for desktops or workstations that require unbuffered non-ECC memory, nor for platforms that need higher speeds, larger capacities or different rank configurations. Buyers who want more storage or different form factors should look elsewhere.
The single 8GB rank provides registered buffering and ECC protection for stable operation in multi-DIMM server configurations. It comfortably handles typical virtualization, database and application workloads within the module's 8GB limit. Systems requiring higher density per slot or faster data rates will reach the module's capacity and speed ceiling.
| Brand | HP |
|---|---|
| Capacity | 8GB |
| Type | 288-Pin DDR4 SDRAM |
| Speed | DDR4 2133 (PC4 17000) |
| CAS Latency | CL15 |
| Voltage | 1.20V |
| ECC | Yes |
| Buffered/Registered | Registered |
| Rank | 1Rx4 |
| Chipset | Major Brand Chipset |
Yes, this is a 288-pin DDR4 RDIMM, so the motherboard must provide DDR4 DIMM sockets that accept registered modules.
No, registered and unbuffered memory cannot be mixed; the system will not POST if both types are installed together.
Enter the BIOS or use a tool like CPU-Z; the memory tab should show DDR4-2133, CAS 15, 1.20 V and registered operation.
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