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Green rectangular circuit board with gold contacts and black memory chips

A-Tech

A-Tech 4GB DDR3 1066 PC3-8500 ECC RDIMM 4Rx8 Server Memory

SKU CH-B0VP-23AH8

4GB DDR3 1066 ECC registered DIMM with 4Rx8 organisation for compatible IBM-Lenovo servers

  • Total capacity4 GB
  • Rated speedDDR3 1066 (PC3 8500)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL7
  • Rated voltage1.5 V
  • Buffer typeRegistered
  • 4GB capacity expands server memory for heavier workloads
  • DDR3 1066 MHz speed matches PC3-8500 system requirements
  • ECC registered design protects data integrity in critical applications
  • 240-pin DIMM form factor fits compatible IBM-Lenovo server slots
  • 5V standard voltage ensures stable operation with major-brand chips

4GB DDR3 1066 ECC RDIMM Server Module

This 4GB DDR3 1066 ECC RDIMM module delivers registered error-correcting memory for server and workstation platforms. It operates at PC3-8500 speed with a CL7 latency and standard 1.5V voltage. The 4Rx8 organisation suits systems that require registered DIMMs for stability under sustained workloads.

Direct Replacement for IBM-Lenovo Part Numbers

The module matches the specifications of IBM-Lenovo part numbers 43X5055, 46C7444, 46C7448, 46C7452, 46U2941 and 67Y0125. It upgrades installations that currently run lower-capacity or non-ECC DDR3 DIMMs at the same 1066 MHz rate. The jump is worthwhile when the platform supports registered ECC memory and the workload demands data integrity over raw bandwidth.

240-Pin DIMM Form Factor for Registered Slots

The 240-pin DIMM fits DDR3 registered memory slots that accept 1.5V ECC RDIMMs. It requires a motherboard and chipset qualified for registered operation and will not function in unbuffered desktop slots. The single-module design leaves additional slots free for further capacity expansion within the system's supported limits.

How it compares

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

Price $20.99
Cheaper than about 94% of the 6,523 comparable items (median $188.99).
Total capacity 4 GB
Lower than about 95% of the 6,064 comparable items (median 32 GB).
Price per GB $5.25 per GB
Cheaper than about 71% of the 6,064 comparable items (median $7.25 per GB).

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Specifications

Product
Brand nameA-Tech
Total capacity4 GB
Performance
Rated speedDDR3 1066 (PC3 8500)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latencyCL7
ECC supportYes
Buffer typeRegistered
Memory rank4Rx8
Power
Rated voltage1.5 V

Questions about this item

Will the 240-pin DDR3 DIMM fit my server's registered memory slots?

Yes, the module uses the standard 240-pin DDR3 DIMM form factor with registered (RDIMM) signalling, matching server boards that accept PC3-8500 ECC registered memory.

Do I need to populate specific slots or follow a rank order when installing this 4Rx8 module?

Install the RDIMM in the slot sequence recommended by your server manual; a common mistake is mixing 4Rx8 ranks with different rank configurations in the same channel, which can prevent the system from posting.

How do I know when this ECC RDIMM should be replaced?

Run periodic memory diagnostics; if corrected ECC error counts rise steadily or the module fails a full test pass, replace it to maintain data integrity.

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