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

A-Tech

A-Tech 4GB DDR3 1600 ECC UDIMM 2Rx8 Server Memory

SKU CH-7WE7-80XSS

4GB DDR3 1600 ECC UDIMM module with CL11 latency and 1.5V operation for server upgrades

  • Total capacity4 GB
  • Rated speedDDR3 1600 (PC3 12800)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL11
  • Rated voltage1.5 V
  • Buffer typeUnbuffered
  • ECC protection prevents data corruption in critical workloads
  • 1600 MHz DDR3 speed accelerates server responsiveness
  • 4 GB capacity expands multitasking headroom
  • 240-pin UDIMM fits standard DDR3 server slots
  • 5 V standard voltage ensures broad platform compatibility

4GB DDR3 1600 ECC UDIMM Server Module

This 4GB DDR3 1600 ECC UDIMM module uses a 2Rx8 organisation and runs at 1.5V with CL11 latency. It is built for servers and workstations that require error-correcting unbuffered memory. The 240-pin DIMM replaces specific Hynix part numbers including HMT351E7CFR8C-PB and HMT351U7CFR8C-PB.

Sustained-load behaviour with ECC UDIMM

Error-correcting code detects and corrects single-bit errors during continuous operation, helping maintain data integrity under prolonged workloads. Unbuffered topology keeps latency low for typical server and workstation tasks. The module operates at standard DDR3 1.5V without additional cooling requirements.

Compatibility checks before ordering

Verify that your system accepts DDR3 1600 ECC UDIMM modules in a 2Rx8 configuration at 1.5V. Confirm the motherboard supports unbuffered ECC rather than registered or non-ECC memory. Check the number of available 240-pin slots and the maximum capacity per slot allowed by your platform.

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).

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
Total capacity4 GB
Performance
Rated speedDDR3 1600 (PC3 12800)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latencyCL11
ECC supportYes
Buffer typeUnbuffered
Memory rank2Rx8
Power
Rated voltage1.5 V

Questions about this item

How much heat and power does the 1.5 V DDR3 1600 module draw when a server runs it continuously?

At the standard 1.5 V the module stays within normal DDR3 thermal limits, so a typical server chassis with adequate airflow keeps temperatures stable during all-day workloads.

What must the system already provide for this 240-pin ECC UDIMM to function?

The motherboard needs a DDR3 DIMM slot that accepts unbuffered ECC memory and a BIOS that supports 2Rx8 modules at 1600 MHz.

Will this 4 GB DDR3 stick work alongside older DDR3 modules already installed in my server?

Yes, provided the existing modules are also DDR3 ECC UDIMM running at 1.5 V; the system will clock all sticks to the lowest common speed and timing.

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