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Two green DDR4 LRDIMM sticks, 288-pin, no heat spreader

OWC

OWC 256GB (2x128GB) DDR4 3200 PC4-25600 CL22 4Rx4 288-pin 1.2V ECC Load Reduced LRDIMM memory upgrade

SKU CH-MQR9-Z0WY0

256 GB kit of two 128 GB DDR4 3200 ECC load-reduced DIMMs for Cisco UCS C4200 servers

  • Capacity256GB (2 x 128GB)
  • Type288-Pin DDR4 ECC LRDIMM
  • SpeedDDR4 3200 (PC4 25600)
  • CAS LatencyCL22
  • Voltage1.2V
  • ECCYes

Capacity 256GB (2 x 128GB)

Voir les 2 autres configurations
  • 256 GB kit (2 × 128 GB) expands Cisco UCS C4200 capacity
  • ECC load-reduced DIMMs protect data integrity in server workloads
  • DDR4 3200 CL22 at 1.2 V delivers high throughput
  • Backward compatible with 2133, 2400, 2666 and 2933 MHz systems
  • Replaces Cisco UCSML128G4RW and UCSXML128G4RW part numbers

OWC 256GB DDR4 3200 LRDIMM kit

This OWC kit provides 256GB of DDR4 3200 ECC Load Reduced memory in two 128GB modules. It uses a 288-pin form factor and runs at 1.2V with CL22 latency. The memory is designed for Cisco UCS C4200 servers and compatible workstations or NAS systems. It cannot be used in standard desktop computers.

Replaces Cisco UCSML128G4RW and UCSXML128G4RW

This kit directly replaces Cisco part numbers UCSML128G4RW and UCSXML128G4RW. The upgrade is worth it when extending the life of existing infrastructure or building new server deployments. It cannot be mixed with unbuffered or standard ECC registered memory. Buyers needing standard DIMMs for desktop platforms should look elsewhere.

256GB capacity with backward compatibility

The 256GB total capacity handles large datasets and heavy virtualization workloads comfortably. Modules operate at 3200MHz and maintain compatibility with 2133MHz, 2400MHz, 2666MHz, and 2933MHz systems. Headroom runs out when workloads exceed the installed 256GB limit or require mixed memory types.

Points forts

  • 256 GB kit (2 × 128 GB) expands Cisco UCS C4200 capacity
  • ECC load-reduced DIMMs protect data integrity in server workloads
  • DDR4 3200 CL22 at 1.2 V delivers high throughput
  • Backward compatible with 2133, 2400, 2666 and 2933 MHz systems
  • Replaces Cisco UCSML128G4RW and UCSXML128G4RW part numbers

Caractéristiques

BrandOWC
Part Number3L2D44R4256P
Capacity256GB (2 x 128GB)
Type288-Pin DDR4 ECC LRDIMM
SpeedDDR4 3200 (PC4 25600)
CAS LatencyCL22
Voltage1.2V
ECCYes
Buffered/RegisteredLoad Reduced
Rank4Rx4
Heat SpreaderNo
Compatible SystemCisco UCS C4200

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Questions sur cet article

Does the 288-pin DDR4 LRDIMM fit the Cisco UCS C4200 memory slots?

Yes, the 288-pin DDR4 LRDIMM form factor matches the Cisco UCS C4200 memory slots. The kit provides 256GB as two 128GB modules designed for that server.

What is the correct installation sequence for the two 128GB LRDIMMs in the Cisco UCS C4200?

Install both 128GB modules in the same channel pair following the Cisco UCS C4200 population guide; do not mix these Load Reduced DIMMs with unbuffered or registered ECC memory.

When should the 256GB DDR4 3200 LRDIMM kit be replaced in a Cisco UCS C4200?

Replace the kit if memory errors appear in system logs, if the server fails POST memory tests, or if a firmware update requires a different rank or speed configuration.

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