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Green 288-pin DDR5 RDIMM module, black chips, gold contacts

A-Tech

A-Tech 32GB DDR5-4800 ECC RDIMM 1Rx4 for IBM-Lenovo 4X77A77030 4X77A77483 4X77A81439 Server RAM

SKU CH-76HC-MA3FB

32GB DDR5-4800 ECC registered DIMM with CL40 latency and 1.10V operation for compatible IBM-Lenovo servers

  • Capacity32GB
  • SpeedDDR5 4800 (PC5 38400)
  • CAS LatencyCL40
  • Voltage1.10V
  • ECCYes
  • Buffered/RegisteredRegistered
  • 32 GB DDR5-4800 boosts server throughput with PC5-38400 speed
  • ECC RDIMM registered design protects data integrity in critical workloads
  • 10 V operation reduces power draw per 32 GB module
  • 288-pin DDR5 DIMM fits IBM-Lenovo 4X77A77030, 4X77A77483, 4X77A81439 slots
  • CL40 CAS latency and 1Rx4 rank optimise single-module performance

Product identity

This A-Tech module is a 32GB DDR5-4800 ECC RDIMM built for IBM-Lenovo servers that require part numbers 4X77A77030, 4X77A77483 or 4X77A81439. It delivers registered, single-rank memory with on-die error correction for stable server operation.

Fit and exclusions

It suits administrators upgrading compatible IBM-Lenovo platforms that accept DDR5 RDIMMs at 1.1V. Buyers whose systems only support unbuffered UDIMMs or a different DDR generation should look elsewhere because the registered interface and DDR5 signalling are not interchangeable.

Deciding specification

The module runs at DDR5 4800 (PC5-38400) with CL40 latency, 1Rx4 organisation and 1.10V voltage on a 288-pin DIMM. Confirm that your server’s memory controller and BIOS support this exact speed, rank layout and registered ECC type before purchasing.

Points forts

  • 32 GB DDR5-4800 boosts server throughput with PC5-38400 speed
  • ECC RDIMM registered design protects data integrity in critical workloads
  • 10 V operation reduces power draw per 32 GB module
  • 288-pin DDR5 DIMM fits IBM-Lenovo 4X77A77030, 4X77A77483, 4X77A81439 slots
  • CL40 CAS latency and 1Rx4 rank optimise single-module performance

Caractéristiques

BrandA-Tech
Capacity32GB
SpeedDDR5 4800 (PC5 38400)
CAS LatencyCL40
Voltage1.10V
ECCYes
Buffered/RegisteredRegistered
Rank1Rx4 (EC4)
ChipsetMajor Brand Chipset
FeaturesMajor Brand Chips

Questions sur cet article

Does my server need a DDR5-compatible motherboard and available 288-pin DIMM slots to install this module?

Yes — this is a DDR5 4800 (PC5-38400) 288-pin RDIMM, so the system must support DDR5 memory and have free registered DIMM slots that accept 1.10 V modules.

Will this 1Rx4 ECC RDIMM work alongside other DDR5 4800 registered modules that have different rank or chip configurations?

It can operate with other DDR5 4800 registered DIMMs, but the server’s memory controller and BIOS determine whether mixed ranks or organisations are allowed; check the platform’s qualified vendor list for approved combinations.

How can I confirm the module is running at 4800 MT/s with CL40 and ECC active after installation?

Enter the BIOS/UEFI or use a tool such as dmidecode, ipmitool or CPU-Z to verify the reported speed shows 4800 MT/s, CAS latency 40, voltage 1.1 V and that ECC/Registered status is reported as enabled.

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