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Green circuit board with black memory chips, gold edge connector, no heat spreader

OWC

OWC 64GB DDR4 2400 CL17 4Rx4 288-pin 1.2V ECC Load Reduced LRDIMM memory upgrade

SKU CH-YWVM-FX8FN

A 64GB DDR4 2400 CL17 ECC load-reduced DIMM for Cisco UCS B420 M4 and C460 M4 servers

  • Capacity64GB
  • Type288-Pin DDR4 ECC LRDIMM
  • SpeedDDR4 2400 (PC4 19200)
  • CAS LatencyCL17
  • Voltage1.2V
  • ECCYes

Capacity 64GB

  • ECC error correction protects data integrity in critical workloads
  • 64GB single-module capacity maximises server memory density per slot
  • DDR4 2400 speed with CL17 latency balances throughput and responsiveness
  • Load-reduced 4Rx4 design reduces electrical load for stable high-capacity configs
  • 2V operation lowers power draw versus higher-voltage DDR4 modules

Cisco UCS server upgrade

This 64GB DDR4 LRDIMM is built for Cisco UCS B420 M4 and C460 M4 systems that require ECC load-reduced memory. It delivers 2400MHz speed with CL17 latency at 1.2V for enterprise workloads.

288-pin load-reduced design

The module uses a 4Rx4 organisation and operates without a heat spreader, relying on server chassis airflow. Load-reduced buffering reduces electrical load on the memory controller, allowing higher capacities per channel in compatible Cisco platforms.

Single-module 64GB capacity

One DIMM provides the full 64GB upgrade, simplifying installation and leaving additional slots free for future expansion. Backward compatibility with 2133MHz systems lets the module run in older DDR4 Cisco configurations without changes.

Points forts

  • ECC error correction protects data integrity in critical workloads
  • 64GB single-module capacity maximises server memory density per slot
  • DDR4 2400 speed with CL17 latency balances throughput and responsiveness
  • Load-reduced 4Rx4 design reduces electrical load for stable high-capacity configs
  • 2V operation lowers power draw versus higher-voltage DDR4 modules

Caractéristiques

BrandOWC
Part Number2L4D44R464GB
Capacity64GB
Type288-Pin DDR4 ECC LRDIMM
SpeedDDR4 2400 (PC4 19200)
CAS LatencyCL17
Voltage1.2V
ECCYes
Buffered/RegisteredLoad Reduced
Rank4Rx4
Heat SpreaderNo
Compatible SystemCisco UCS B420 M4
Cisco UCS C460 M4 (DDR4)

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Questions sur cet article

Does the DDR4 2400 PC4-19200 interface limit speed to 2400 MT/s in practice?

Yes, the module runs at DDR4 2400 (PC4-19200) with CL17 latency; it is also backward compatible with 2133 MHz systems.

What physical slot and clearance does the 288-pin LRDIMM require?

It needs a standard 288-pin DDR4 DIMM slot; the module has no heat spreader, so it fits in tight server chassis without extra height clearance.

How is the ECC Load Reduced DIMM installed, and what mixing mistake should be avoided?

Insert the 4Rx4 LRDIMM into a compatible Cisco UCS B420 M4 or C460 M4 slot; do not mix it with unbuffered or standard ECC registered memory.

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