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Green circuit board with black memory chips and gold edge connectors

Axiom

Axiom AX31600E11Z/4L 4GB DDR3 1600 ECC Unbuffered server RAM

SKU CH-45MJ-KM82Q MPN AX31600E11Z/4L

4GB DDR3 1600 ECC unbuffered server memory with 1.35V low-voltage operation and 240-pin form factor

  • Total capacity4 GB
  • Rated speedDDR3 1600 (PC3 12800)
  • Rated voltage1.35 V
  • Buffer typeUnbuffered
  • Product type240-Pin DDR3 SDRAM
  • ECC protection guards data integrity in critical workloads
  • Unbuffered design enables direct CPU access for lower latency
  • DDR3 1600 speed delivers 12800 MT/s bandwidth
  • Low 1.35 V voltage reduces power draw and heat
  • 240-pin DDR3 form factor fits standard server slots

Capacity and role

This is a 4 GB DDR3 ECC unbuffered module built for servers that require error-correcting memory without registered signalling. It suits maintenance of older platforms that still use 240-pin DDR3 slots and need the 1.35 V operating voltage.

Thermal noise and power

Running at 1.35 V keeps power draw low and heat output modest in typical server workloads. The unbuffered design adds no extra register latency or active components, so acoustics depend only on the system fans moving air across the DIMMs.

Speed and standard match

The module operates at 1600 MHz, labelled PC3 12800, so it must be installed in a system whose memory controller supports that exact DDR3 1600 data rate. Boards limited to lower DDR3 speeds or requiring registered DIMMs will not work with this part.

How it compares

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

Price $59.99
Cheaper than about 81% 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 $15.00 per GB
Pricier than about 75% of the 6,064 comparable items (median $7.25 per GB).

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Specifications

Product
Brand nameAxiom
Model nameAX31600E11Z/4L
Total capacity4 GB
Product type240-Pin DDR3 SDRAM
Performance
Rated speedDDR3 1600 (PC3 12800)
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 do I install the 240-pin DDR3 module and what step is often missed?

Align the notch on the 240-pin DDR3 module with the slot key, press down firmly until both retaining clips click shut, and verify the 1.35V setting is selected in BIOS so the 1600MHz speed is applied.

What maintenance or replacement will the 4GB ECC unbuffered DDR3 need later?

The 4GB ECC unbuffered DDR3 has no moving parts and requires no scheduled maintenance; replacement is only needed if a memory test reports correctable errors rising or a module fails to post.

What limit appears first on the 1.35V DDR3-1600 under sustained load?

The 1.35V DDR3-1600 modules are rated for standard server operating temperatures; the first limit under sustained load is the thermal envelope of the 240-pin DDR3 package, so adequate case airflow must be maintained.

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