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Green 240-pin DDR3 DIMM with black chips, gold edge contacts, 157.5 mil thick

Axiom

Axiom AX31333E9Z/8L 8GB DDR3 1333 ECC Unbuffered Server RAM

SKU CH-9Q9G-452E6 MPN AX31333E9Z/8L

8 GB DDR3 ECC unbuffered DIMM running at 1333 MHz with 1.35 V operation

  • Total capacity8 GB
  • Rated speedDDR3 1333 (PC3 10600)
  • Rated voltage1.35 V
  • Buffer typeUnbuffered
  • Product type240-Pin DDR3 SDRAM
  • 8 GB capacity supports demanding server workloads
  • DDR3 1333 MHz speed delivers reliable data throughput
  • ECC protection detects and corrects memory errors
  • Low 1.35 V voltage reduces power consumption
  • 240-pin unbuffered DIMM fits compatible server slots

Mission-critical server memory

Axiom AX31333E9Z/8L is an 8GB DDR3-1333 ECC unbuffered DIMM built for servers that require error correction without registered signalling. It runs at 1.35V and uses a standard 240-pin layout. The module suits administrators who need guaranteed compatibility and consistent quality controls for integration projects.

Sustained-load behaviour

ECC circuitry detects and corrects single-bit errors continuously, protecting data integrity during long compute runs or heavy virtualisation workloads. The low 1.35V operating voltage reduces thermal output per module, helping maintain stable frequencies inside densely populated chassis. Unbuffered topology keeps latency low for direct-attached memory controllers.

Upgrade context

This module replaces non-ECC or higher-voltage DDR3 DIMMs when error correction becomes a requirement for data protection policies. The jump is worth it when moving from consumer-grade memory to tier-one component boards that undergo additional qualification testing. Buyers who need registered signalling or capacities beyond 8GB per slot should look elsewhere.

How it compares

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

Price $58.99
Cheaper than about 81% 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 $7.37 per GB
Typical for this category: the median of 6,064 items is $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 nameAxiom
Model nameAX31333E9Z/8L
Total capacity8 GB
Product type240-Pin DDR3 SDRAM
Performance
Rated speedDDR3 1333 (PC3 10600)
Memory
ECC supportYes
Buffer typeUnbuffered
Power
Rated voltage1.35 V
Size & build
Shipping weight0.09 kg
Package size178 × 76 × 25 mm

Questions about this item

How much heat and power does the 1.35 V DDR3 1333 module draw when running continuously?

Operating at 1.35 V, this DDR3 1333 DIMM consumes less power and generates less heat than standard 1.5 V modules, helping keep server thermals manageable during all-day workloads.

What motherboard slot and memory controller features are required for this 240-pin ECC unbuffered DIMM?

You need a DDR3 240-pin DIMM slot with an integrated memory controller that supports ECC and unbuffered modules; the board must also accept 1.35 V low-voltage operation.

Will this DDR3 1333 ECC stick work in a system that currently runs DDR3 1333 non-ECC memory?

Mixing ECC and non-ECC modules is not supported; the memory controller must run in ECC mode for this module to function correctly, so all installed sticks must be ECC.

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