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Green circuit board with black memory chips, low-profile DDR4 DIMM

OWC

OWC 2E6V42R816GB 16GB DDR4 2666 ECC VLP UDIMM

SKU CH-JJHJ-C3GCQ

A 16 GB DDR4 2666 ECC VLP UDIMM validated for Supermicro X11SSM and X11SSW series boards

  • Capacity16GB
  • Type288-Pin DDR4 ECC VLP UDIMM
  • SpeedDDR4 2666 (PC4 21300)
  • CAS LatencyCL19
  • Voltage1.2V
  • ECCYes
  • 16 GB capacity boosts multitasking headroom
  • DDR4 2666 speed matches system spec
  • ECC protection guards data integrity
  • 2 V low-voltage reduces power draw
  • VLP 288-pin fits Supermicro X11SSM series

Capacity and compatibility

This is a single 16GB DDR4 2666 ECC VLP UDIMM built for Supermicro motherboards X11SSM, X11SSM-F, X11SSW-4TF, X11SSW-F and X11SSW-TF. It targets server and workstation builders who need registered-grade reliability in an unbuffered, very-low-profile form factor.

Sustained-load behaviour

JEDEC-standard timings at CL19 and 1.2V keep the module stable during long compile jobs, virtualisation workloads or database services. The 2Rx8 organisation and absence of a heat spreader suit dense chassis where airflow is managed by the system designer rather than the DIMM itself.

Upgrade scope and limits

It replaces lower-capacity DDR4 ECC UDIMMs in the listed Supermicro platforms when the board’s maximum DIMM count and total memory ceiling allow a 16GB step. The jump is not worthwhile if all slots are already populated or the platform cannot address the additional rank.

Pontos fortes

  • 16 GB capacity boosts multitasking headroom
  • DDR4 2666 speed matches system spec
  • ECC protection guards data integrity
  • 2 V low-voltage reduces power draw
  • VLP 288-pin fits Supermicro X11SSM series

Especificações

BrandOWC
Part Number2E6V42R816GB
Capacity16GB
Type288-Pin DDR4 ECC VLP UDIMM
SpeedDDR4 2666 (PC4 21300)
CAS LatencyCL19
Voltage1.2V
ECCYes
Buffered/RegisteredUnbuffered
Rank2Rx8
Heat SpreaderNo
Compatible SystemSupermicro Motherboard X11SSM
Supermicro Motherboard X11SSM-F
Supermicro Motherboard X11SSW-4TF
Supermicro Motherboard X11SSW-F
Supermicro Motherboard X11SSW-TF

Perguntas sobre este artigo

How much heat does the 1.2 V DDR4 2666 module add when it runs continuously?

At 1.2 V the module draws very little power, so it adds only a small amount of heat inside the chassis even under sustained load.

Does my Supermicro X11SSM-F board need anything else for this VLP ECC UDIMM to work?

The board must support DDR4 ECC unbuffered memory and have a free 288-pin slot; no extra hardware is required.

Can I keep my existing DDR4 2666 CL19 sticks and add this 16 GB module?

Yes, provided the other sticks are also DDR4 2666 ECC unbuffered; matching speed, voltage and ECC type avoids timing conflicts.

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