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 DDR5-4800 ECC registered RDIMM compatible with Dell AC865554 servers
This 16GB DDR5-4800 ECC Registered RDIMM is built for Dell servers that require PC5-38400 registered memory. It uses major-brand components and matches Dell part number AC865554 for drop-in compatibility. The module is sold new with a lifetime warranty.
This module suits administrators upgrading or repairing compatible Dell systems that need 1Rx8 registered ECC DDR5 at 4800 MT/s. It is not for desktops or workstations that only accept unbuffered memory. Buyers who need a different capacity, speed, rank configuration or non-Dell platform support should look elsewhere.
Installation follows standard RDIMM procedures: power down the server, open the chassis, seat the module firmly in the correct slot and verify detection in BIOS. Common issues include mixing registered and unbuffered DIMMs, populating slots in an unsupported order or using a platform that does not support DDR5-4800 registered memory. Identical modules are supplied for multi-DIMM orders.
| Brand | Dell |
|---|---|
| Capacity | 16GB |
| Speed | DDR5 4800 (PC5 38400) |
| ECC | Yes |
| Buffered/Registered | Registered |
| Chipset | Major Brand Chipset |
Yes. The module is DDR5-4800 PC5-38400 1Rx8 ECC Registered, so it only fits DDR5 slots that accept registered DIMMs.
Mixing capacities is usually possible if every DIMM is registered ECC and the platform supports the total population, but the exact rules depend on the server model.
Check the BIOS memory information or an OS tool such as dmidecode; both will show 4800 MT/s speed and ECC enabled for this part.
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