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Green 240-pin DDR3L registered DIMM with black memory chips and a white label

A-Tech

A-Tech 8GB DDR3L 1333MHz ECC RDIMM 2Rx4 1.35V Server RAM

SKU CH-BM5R-FXMRS

8GB DDR3L 1333MHz ECC registered DIMM, 2Rx4 at 1.35V for server upgrades

  • Total capacity8 GB
  • Rated speedDDR3L 1333 (PC3L 10600)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL9
  • Rated voltage1.35 V
  • Buffer typeRegistered
  • 8GB capacity expands server memory headroom
  • 1333MHz DDR3L speed matches PC3L-10600 spec
  • ECC registered design protects data integrity
  • 35V low voltage reduces power draw
  • 2Rx4 dual-rank organisation optimises throughput

Server Memory Upgrade

This 8GB DDR3L module is built for servers and workstations that require registered ECC memory. It replaces Hynix HMT41GV7BMR4A-H9 and HMT41GV7CMR4A-H9 parts in compatible systems. The module is not suited for desktop boards that only accept unbuffered non-ECC DIMMs.

Registered ECC Design

The stick uses a 240-pin DIMM form factor with a 2Rx4 organisation and major-brand chips. Registered signalling and on-board ECC reduce electrical load on the memory controller and correct single-bit errors, which is essential for 24/7 server workloads. Buyers needing unbuffered or non-ECC memory should look elsewhere.

Low-Voltage Operation

Rated at 1.35V, the DDR3L module draws less power and generates less heat than standard 1.5V DDR3 at the same 1333MHz CL9 speed. Lower thermals help keep chassis fans quiet in dense rack environments. Systems that cannot run DDR3L at 1.35V will not support this module.

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 8 GB
Lower than about 80% of the 6,064 comparable items (median 32 GB).
Price per GB $2.37 per GB
Cheaper than about 92% 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
Product lineCompatible Replacement for Hynix
Model nameHMT41GV7BMR4A-H9, HMT41GV7CMR4A-H9
Total capacity8 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 DDR3L 1333MHz interface cap bandwidth at PC3L-10600 speeds?

Yes, the module runs at DDR3L 1333 (PC3L-10600) with CL9 latency, so throughput is limited to that rated speed.

What physical slot and keying does this 240-pin RDIMM require?

It fits a standard DDR3 240-pin DIMM socket; the low-voltage DDR3L keying matches DDR3 slots that support 1.35V operation.

What installation step is often missed when adding this registered ECC module?

Ensure the server supports registered ECC memory and enable ECC in the BIOS after seating the module firmly until the retention clips lock.

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