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Green 240-pin DDR3 DIMM with black chips, registered ECC server memory

A-Tech

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

SKU CH-92S3-ZW741

A 4 GB DDR3 ECC registered DIMM running at 1066 MHz with CL3 latency and 1.5 V for server upgrades

  • Total capacity4 GB
  • Rated speedDDR3 1066 (PC3 8500)
  • ChipsetMicron Chipset
  • CAS latencyCL3
  • Rated voltage1.5 V
  • Buffer typeRegistered
  • 4GB capacity expands server memory headroom
  • DDR3 1066 MHz speed matches PC3-8500 spec
  • ECC RDIMM registered design protects data integrity
  • 50 V standard voltage keeps power draw predictable
  • 240-pin DIMM form factor fits compatible server slots

Capacity and role

This A-Tech module is a 4GB DDR3 registered DIMM built for servers and workstations that require ECC protection. It replaces the Micron MT36JSZF51272PDZ-1GF1DD part number in compatible systems.

Registered ECC and voltage

The registered buffer and ECC circuitry improve data integrity for multi-module configurations. Operation at the standard 1.5V DDR3 voltage ensures compatibility with platforms designed for that specification.

Rank and pin count

The 4Rx8 organisation and 240-pin DIMM form factor determine whether the memory controller can address this module; verify your system supports quad-rank registered DIMMs before ordering.

How it compares

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

Price $14.99
Cheaper than about 97% 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 $3.75 per GB
Cheaper than about 83% of the 6,064 comparable items (median $7.25 per GB).

New to this? Buying memory and SSDs with crypto — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameA-Tech
Product lineCompatible Replacement for Micron
Model nameMT36JSZF51272PDZ-1GF1DD
Total capacity4 GB
Performance
Rated speedDDR3 1066 (PC3 8500)
Processor
ChipsetMicron Chipset
Memory
CAS latencyCL3
ECC supportYes
Buffer typeRegistered
Memory rank4Rx8
Power
Rated voltage1.5 V

Questions about this item

Will the registered ECC DIMM need any firmware updates or battery-backed components replaced over its service life?

No firmware or battery-backed parts are present on this registered ECC DIMM; it is a passive DRAM module that requires no scheduled maintenance.

What electrical limit is reached first when the module runs continuously at its rated 1066 MHz speed?

The 1.50 V supply rail defines the operating envelope; sustained loads stay within the standard DDR3 voltage specification without exceeding thermal or current thresholds.

How much heat and fan noise does a single 4 GB stick add to a server chassis running 24/7?

At 1.5 V the module draws only a few watts, adding negligible heat and no audible noise; existing chassis airflow handles it without extra fan speed.

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