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Green circuit board with gold contacts, black memory chips, silver metal clips on both ends

A-Tech

A-Tech 4GB DDR3L 1333MHz ECC RDIMM 2Rx4 1.35V Server RAM

SKU CH-ZF4X-HBZM0

4GB DDR3L 1333MHz ECC registered server DIMM at 1.35V for IBM-Lenovo systems

  • Total capacity4 GB
  • Rated speedDDR3L 1333 (PC3L 10600)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL9
  • Rated voltage1.35 V
  • Buffer typeRegistered
  • 4GB DDR3L 1333MHz ECC RDIMM boosts server responsiveness
  • 35V low-voltage operation reduces power draw in IBM-Lenovo systems
  • 2Rx4 registered design adds error correction for data integrity
  • CL9 latency supports stable multitasking under heavy workloads
  • 240-pin DIMM form factor fits compatible IBM-Lenovo 43X5317 and 46C0579 slots

Server memory module for IBM-Lenovo systems

This 4GB DDR3L module operates at 1333MHz with CL9 latency and 1.35V low voltage. It is a registered ECC RDIMM with 2Rx4 organisation, built as a compatible replacement for IBM-Lenovo part numbers 43X5317 and 46C0579. The module uses a 240-pin DIMM form factor and major brand chipset for server and workstation use.

Verify your platform supports DDR3L registered ECC

Before ordering, confirm that your system accepts DDR3L 1333MHz registered memory with ECC functionality and 1.35V operation. The motherboard must support 2Rx4 rank configuration and 240-pin DIMM slots. Check the system documentation or vendor memory qualification list to ensure compatibility with these exact specifications.

Single 4GB module expands capacity by one slot

The package contains one 4GB stick, adding a single rank of registered ECC memory to a compatible slot. No additional cables, brackets, or software utilities are included. Installation is limited to physical insertion into a supported DDR3L RDIMM slot on a qualified server or workstation motherboard.

How it compares

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

Price $18.99
Cheaper than about 95% 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 $4.75 per GB
Cheaper than about 75% of the 6,064 comparable items (median $7.25 per GB).

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Specifications

Product
Brand nameA-Tech
Product lineCompatible Replacement for IBM-Lenovo
Model name43 × 5317, 46C0579
Total capacity4 GB
Performance
Rated speedDDR3L 1333 (PC3L 10600)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latencyCL9
ECC supportYes
Buffer typeRegistered
Memory rank2Rx4
Power
Rated voltage1.35 V

Questions about this item

Does the 240-pin DDR3L RDIMM ship alone or with any extra parts?

The module is supplied as a single 4 GB stick; no additional cables, brackets or software are included.

How do I decide between the 43X5317 and 46C0579 part numbers?

Both numbers refer to the same 4 GB DDR3L 1333 MHz ECC registered DIMM; choose the one that matches your server's service manual.

What does the 1.35 V rating mean when the DIMM is installed?

It runs at the lower DDR3L voltage, reducing power draw and heat while keeping CL9 timing at 1333 MHz.

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