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Green 240-pin DDR3 UDIMM module with black chips and a silver label

A-Tech

A-Tech 8GB DDR3 1600MHz PC3-12800 ECC UDIMM 2Rx8 Server Memory

SKU CH-2ZFY-2YT49

An 8 GB DDR3 ECC UDIMM module running at 1600 MHz with CL11 latency and 1.5 V for server and workstation upgrades

  • Total capacity8 GB
  • Rated speedDDR3 1600 (PC3 12800)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL11
  • Rated voltage1.5 V
  • Buffer typeUnbuffered
  • ECC protection guards data integrity with built-in error correction
  • 1600 MHz DDR3 speed handles demanding server workloads
  • 8 GB capacity expands memory for heavy multitasking
  • 240-pin UDIMM form factor fits standard server slots
  • 50 V standard voltage ensures broad platform compatibility

Server Memory Upgrade

This A-Tech module provides 8GB of DDR3 ECC UDIMM memory for server and workstation systems. It replaces Samsung M391B1G73BH0-CK0 and M391B1G73QH0-CK0 part numbers. The unbuffered design fits standard 240-pin DIMM slots. Builders needing registered DIMMs or larger capacities should look elsewhere.

Thermals and Power Draw

Standard 1.50V DDR3 voltage keeps power consumption in line with JEDEC specifications for this speed grade. ECC error correction adds minimal overhead during normal operation. Passive cooling on the module relies on chassis airflow; no active fan or heatsink is included.

Deciding Specification

The 2Rx8 dual-rank organisation with CL11 latency at DDR3 1600 (PC3-12800) determines whether your platform can populate all slots at rated speed. Verify the motherboard qualified-vendor list for this exact rank and latency combination before ordering.

How it compares

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

Price $54.99
Cheaper than about 83% of the 6,523 comparable items (median $188.99).
Total capacity 8 GB
Lower than about 80% of the 6,064 comparable items (median 32 GB).
Price per GB $6.87 per GB
Cheaper than about 54% of the 6,064 comparable items (median $7.25 per GB).

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Specifications

Product
Brand nameA-Tech
Total capacity8 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 do I install this 240-pin DDR3 ECC UDIMM and what step is often missed?

Align the notch on the module with the key in the slot, press down firmly until both side clips click, then verify in BIOS that ECC is enabled and the speed reads 1600 MHz.

What maintenance or replacement will this 8 GB DDR3 1600 MHz module need later?

No routine maintenance is required; keep the server’s air filters clean so the 1.5 V DIMM stays cool, and replace only if memory diagnostics report correctable errors rising over time.

What limit appears first on this CL11 2Rx8 ECC UDIMM under sustained load?

The CAS latency of 11 cycles at 1600 MHz sets the access-time floor, so sustained bandwidth tops out at the PC3-12800 rating before thermal throttling becomes a factor.

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