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Green 240-pin DDR3 DIMM with black chips and a silver label

A-Tech

A-Tech 16GB DDR3 1866MHz PC3-14900 ECC RDIMM 2Rx4 Server Memory

SKU CH-DTWM-W31C8

16GB DDR3 1866MHz ECC registered DIMM with CL13 latency for compatible HP servers

  • Total capacity16 GB
  • Rated speedDDR3 1866 (PC3 14900)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL13
  • Rated voltage1.5 V
  • Buffer typeRegistered
  • 16 GB capacity lets servers handle larger workloads
  • DDR3 1866 MHz speed delivers fast data transfer rates
  • ECC RDIMM technology detects and corrects memory errors
  • 2Rx4 dual-rank organisation increases memory density per slot
  • 5 V standard voltage ensures broad platform compatibility

Server Memory for HP Systems

This 16GB DDR3 registered DIMM is built for server and workstation platforms that require ECC protection. It replaces several HP part numbers including 708641-B21 and 712383-581. The module suits administrators upgrading compatible systems to handle larger workloads. Buyers using consumer desktop boards or laptops that cannot accept registered memory should look elsewhere.

16GB Capacity with DDR3 1866 Speed

The single module delivers 16GB of memory at 1866MHz PC3-14900 with CL13 latency and standard 1.5V operation. This capacity provides headroom for virtualisation, databases and multi-user applications on supported hardware. Systems limited to lower DDR3 speeds or smaller maximum module sizes will not benefit from the full specification. The registered design adds a clock cycle, so unbuffered platforms cannot use it.

ECC Registered 2Rx4 DDR3 DIMM

The decisive specification is the ECC RDIMM 2Rx4 organisation on a 240-pin DDR3 interface. Only motherboards that explicitly support registered ECC DDR3 modules in this rank configuration will recognise and initialise the memory correctly. Verifying the system's qualified vendor list against the HP part numbers listed is essential before purchase.

How it compares

Measured against everything we stock in ECC Server RAM, at today’s prices. Recalculated every night.

Price $29.99
Cheaper than about 90% of the 6,523 comparable items (median $188.99).
Total capacity 16 GB
Lower than about 60% of the 6,064 comparable items (median 32 GB).
Price per GB $1.87 per GB
Cheaper than about 94% of the 6,064 comparable items (median $7.25 per GB).

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Specifications

Product
Brand nameA-Tech
Total capacity16 GB
Performance
Rated speedDDR3 1866 (PC3 14900)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latencyCL13
ECC supportYes
Buffer typeRegistered
Memory rank2Rx4
Power
Rated voltage1.5 V

Questions about this item

Will this 1866 MHz DDR3 RDIMM run at full speed alongside slower DDR3 modules already in my server?

The module is rated for DDR3 1866 (PC3-14900) at CL13; when mixed with slower DDR3 DIMMs the memory controller will down-clock all modules to the lowest common speed and latency.

How can I verify the ECC registered function is active after installing the 16 GB stick?

Check the system BIOS or UEFI memory information screen — it should report the DIMM as 16 GB ECC Registered running at 1.5 V with the correct part number.

Does the single 240-pin DIMM ship alone or with a heatsink and extra hardware?

The package contains one 16 GB DDR3 1866 MHz ECC RDIMM (2Rx4) only; no heatsink, brackets or cables are included.

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