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A-Tech

A-Tech 4GB DDR3 1600 ECC UDIMM 1Rx8 Server Memory

SKU CH-ATAF-SW4HG

4GB DDR3 1600 ECC unbuffered UDIMM with CL11 latency for server upgrades

  • Total capacity4 GB
  • Rated speedDDR3 1600 (PC3 12800)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL11
  • Rated voltage1.5 V
  • Buffer typeUnbuffered
  • ECC protection safeguards data integrity with built-in error correction
  • DDR3 1600 speed delivers responsive server performance at PC3-12800 bandwidth
  • Single-rank 1Rx8 organisation optimises memory controller efficiency
  • Standard 1.50V operation matches DDR3 platform requirements
  • 240-pin UDIMM form factor fits compatible server and workstation slots

Compatible Replacement for Hynix HMT451E7BFR8C-PB

This A-Tech module is a 4GB DDR3 1600 ECC unbuffered DIMM built to replace the Hynix HMT451E7BFR8C-PB. It runs at PC3-12800 speed with CL11 latency at 1.50V and uses a 1Rx8 single-rank layout. The 240-pin form factor fits standard DDR3 server and workstation slots. Quality assurance testing and a lifetime warranty back the part.

Suits servers needing ECC UDIMM DDR3 1600

System builders maintaining DDR3 platforms that require error-correcting unbuffered memory at 1600 MHz will find this a direct fit. Buyers whose boards demand registered DIMMs, a different voltage, or higher density per slot cannot use this module. Compatibility must be verified against the system's qualified-vendor list before purchase.

Deciding spec: ECC unbuffered DDR3 1600 at 1.50V

The single specification that determines fit is the combination of ECC unbuffered operation, DDR3 1600 speed, and 1.50V voltage in a 240-pin DIMM. If the motherboard calls for registered ECC, a different voltage, or a non-ECC UDIMM, this module will not work. Match all three parameters to the system documentation.

How it compares

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

Price $16.99
Cheaper than about 96% 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 $4.25 per GB
Cheaper than about 79% of the 6,064 comparable items (median $7.25 per GB).

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Specifications

Product
Brand nameA-Tech
Product lineCompatible Replacement for Hynix
Model nameHMT451E7BFR8C-PB
Total capacity4 GB
Performance
Rated speedDDR3 1600 (PC3 12800)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latencyCL11
ECC supportYes
Buffer typeUnbuffered
Memory rank1Rx8
Power
Rated voltage1.5 V

Questions about this item

How do I install this 240-pin DDR3 DIMM and what is the common mistake?

Align the notch on the module with the key in the slot, press down firmly until both side clips click shut; the common mistake is stopping when it feels seated but before the clips engage.

What maintenance or replacement will this 4GB ECC UDIMM need later?

No scheduled maintenance is required; replace the module only if memory diagnostics report correctable errors that become uncorrectable or if a system upgrade demands higher capacity.

What limit appears first on this CL11 1.5V module under sustained load?

The 1600 MT/s data rate and CL11 latency set the throughput ceiling; sustained workloads will saturate bandwidth before the 1.5V thermal envelope becomes a constraint.

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