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Green 240-pin DDR3 UDIMM module with black chips and gold contacts

A-Tech

A-Tech 4GB DDR3 1066 ECC UDIMM 2Rx8 Server RAM

SKU CH-BX32-8TZAP

4GB DDR3 1066MHz ECC unbuffered DIMM with 2Rx8 rank for server upgrades

  • Total capacity4 GB
  • Rated speedDDR3 1066 (PC3 8500)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL7
  • Rated voltage1.5 V
  • Buffer typeUnbuffered
  • 4GB capacity adds headroom for virtualised workloads
  • DDR3 1066 MHz PC3-8500 speed matches legacy server specs
  • ECC unbuffered design detects and corrects single-bit errors
  • 2Rx8 dual-rank organisation improves memory controller efficiency
  • 50 V standard voltage keeps power draw predictable

4GB DDR3 ECC UDIMM for Servers

This 4GB DDR3 1066MHz PC3-8500 ECC UDIMM module uses a 2Rx8 unbuffered design with major brand chips. It operates at standard 1.5V voltage with CL7 latency. The 240-pin DIMM is built as a compatible equivalent for Hynix HMT351U7AFR8C-G7 and HMT351U7BFR8C-G7 modules. It targets administrators upgrading DDR3 server or workstation platforms that require error-correcting memory.

Thermals and Power at Standard Voltage

Running at the JEDEC standard 1.50V, the module draws typical DDR3 power without elevated voltage overhead. The unbuffered layout avoids the extra register components that increase consumption on registered DIMMs. No active cooling is included or specified, so airflow within the server chassis handles heat dissipation during normal multi-tasking workloads.

Quality Assurance and Support Inclusions

Every module undergoes quality assurance testing before shipment to verify reliable operation. The purchase includes a lifetime warranty against defects and access to United States-based technical support for compatibility questions before and after installation. No additional software, heat spreaders or mounting hardware are bundled with the memory stick.

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 typeUnbuffered
Memory rank2Rx8
Power
Rated voltage1.5 V

Questions about this item

How do I install this 240-pin DDR3 UDIMM and what step do people often miss?

Align the notch on the module with the key in the 240-pin slot, press firmly until both side clips click shut, then verify in BIOS that the server detects 4 GB at 1066 MHz with ECC active.

What maintenance or replacement will this ECC UDIMM need over time?

No routine maintenance is required; if a correctable error count climbs or the module fails POST, replace it with another DDR3 1066 ECC UDIMM of matching voltage and rank.

What limit appears first when this 1.5 V module runs under sustained load?

The DDR3 1066 (PC3-8500) bandwidth ceiling is reached before thermal throttling, so sustained throughput tops out at the rated 8500 MT/s transfer rate.

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