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Eight green DDR3L LRDIMM modules with gold contacts and black chips

OWC

OWC 256GB (8×32GB) DDR3L 1600 CL11 ECC LRDIMM 240-pin 1.35V memory upgrade

SKU CH-YE25-SE6PR

Eight DDR3L 32GB load-reduced ECC modules totalling 256GB at 1600 MHz for Cisco UCS B200 M3, B22 M3, B420 M3, C22 M3 and C220 M3 servers

  • Capacity256GB (8 x 32GB)
  • Type240-Pin DDR3L ECC LRDIMM
  • SpeedDDR3L 1600 (PC3L 12800)
  • CAS LatencyCL11
  • Voltage1.35V
  • ECCYes

Capacity 256GB (8 x 32GB)

  • 256 GB total capacity from eight 32 GB modules
  • DDR3L 1600 speed at 1.35 V lowers power draw
  • ECC load-reduced design protects data integrity in servers
  • 4Rx4 organisation maximises density per DIMM slot
  • Validated for Cisco UCS B200 M3 B22 M3 B420 M3 C22 M3 C220 M3

Kit composition

This OWC kit supplies 256 GB of 1600 CL11 ECC load-reduced DIMM memory in eight 32 GB modules. Each module uses a 240-pin DDR3L interface and runs at 1.35 V. The kit replaces Cisco part numbers UCSML1X324RYA, UCS-ML-1X324RZ-A and UCSML2X324RYE.

Suitable systems

The memory is validated for Cisco UCS B200 M3, B22 M3, B420 M3, C22 M3 and C220 M3 servers. It will not work in standard desktop computers and cannot be mixed with unbuffered or registered ECC DIMMs. Buyers who need memory for a workstation or consumer platform should look elsewhere.

Deciding specification

The modules are 4Rx4 load-reduced ECC DIMMs; this rank and buffering combination is the single attribute that determines whether the kit will function in the target Cisco UCS chassis.

Highlights

  • 256 GB total capacity from eight 32 GB modules
  • DDR3L 1600 speed at 1.35 V lowers power draw
  • ECC load-reduced design protects data integrity in servers
  • 4Rx4 organisation maximises density per DIMM slot
  • Validated for Cisco UCS B200 M3 B22 M3 B420 M3 C22 M3 C220 M3

Specifications

BrandOWC
Part Number1L6T34R4256K
Capacity256GB (8 x 32GB)
Type240-Pin DDR3L ECC LRDIMM
SpeedDDR3L 1600 (PC3L 12800)
CAS LatencyCL11
Voltage1.35V
ECCYes
Buffered/RegisteredLoad Reduced
Rank4Rx4
Heat SpreaderNo
Compatible SystemCisco UCS B200 M3
Cisco UCS B22 M3
Cisco UCS B420 M3
Cisco UCS C22 M3
Cisco UCS C220 M3

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Questions about this item

How much power does the 1.35 V DDR3L 1600 kit draw when the server runs continuously?

The modules operate at 1.35 V, which is the DDR3L low-voltage standard. Actual wattage depends on the specific Cisco UCS platform and workload, so consult the server's technical guide for precise power-budget figures.

What server hardware is required to use this 240-pin ECC LRDIMM kit?

The kit is validated for Cisco UCS B200 M3, B22 M3, B420 M3, C22 M3 and C220 M3 servers. The system must support DDR3L 1600 PC3L-12800 CL11 4Rx4 Load-Reduced DIMMs; it will not work with unbuffered or standard registered ECC memory.

Can I mix these 4Rx4 LRDIMMs with the registered ECC DIMMs already installed in my Cisco UCS?

No. The manufacturer highlights state that Load-Reduced modules cannot be mixed with unbuffered or ECC Registered memory. All slots should use identical LRDIMM specifications for stable operation.

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