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Two green 288-pin DDR4 LRDIMM modules with black chips, no heat spreader

OWC

OWC 256GB (2x128GB) DDR4 2400MHz CL17 4Rx4 ECC LRDIMM 1.2V 288-pin server RAM

SKU CH-WW2Q-9151G

Dual-channel 256GB kit of DDR4 2400MHz CL17 ECC LRDIMM modules for servers and workstations

  • Capacity256GB (2 x 128GB)
  • Type288-Pin DDR4 ECC LRDIMM
  • SpeedDDR4 2400 (PC4 19200)
  • CAS LatencyCL17
  • Voltage1.2V
  • ECCYes

Capacity 256GB (2 x 128GB)

  • ECC load-reduced design protects data integrity in servers
  • 256 GB dual-channel kit doubles bandwidth for heavy workloads
  • DDR4 2400 MHz CL17 speed keeps latency low
  • 2 V operation cuts power draw per module
  • Backward compatible with 2133 MHz systems for easy integration

Server Memory Kit for Workstations and NAS

This kit provides 256GB of DDR4 ECC LRDIMM memory across two 128GB modules. It is designed for servers and workstations that require registered, load-reduced DIMMs for high-capacity configurations. Standard desktop motherboards cannot use this memory type.

Upgrade Path from Lower-Capacity Registered DIMMs

The jump is worthwhile when your workload exceeds the limits of smaller registered kits and the platform supports 4Rx4 LRDIMM modules. Backward compatibility with 2133MHz systems allows installation in older DDR4 servers without replacing the CPU or motherboard.

Installation Notes for 288-Pin LRDIMM Modules

Modules install like standard DIMMs but must populate slots according to the server vendor's population rules for load-reduced memory. Mixing with unbuffered or standard registered DIMMs will prevent boot. Verify the memory list before purchasing.

Puntos fuertes

  • ECC load-reduced design protects data integrity in servers
  • 256 GB dual-channel kit doubles bandwidth for heavy workloads
  • DDR4 2400 MHz CL17 speed keeps latency low
  • 2 V operation cuts power draw per module
  • Backward compatible with 2133 MHz systems for easy integration

Especificaciones

BrandOWC
Part Number2L4D44R4256P
Capacity256GB (2 x 128GB)
Type288-Pin DDR4 ECC LRDIMM
SpeedDDR4 2400 (PC4 19200)
CAS LatencyCL17
Voltage1.2V
ECCYes
Buffered/RegisteredLoad Reduced
Rank4Rx4
Multi-channel KitDual Channel Kit
Heat SpreaderNo

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Preguntas sobre este artículo

Will the 288-pin DDR4 LRDIMM modules fit my server's memory slots?

These 288-pin DDR4 LRDIMM modules require server or workstation slots that support load-reduced ECC memory; they will not fit standard desktop motherboards.

What is the correct way to install the dual-channel 256GB kit and what step is often missed?

Install both 128GB modules in the matched channel slots specified by your server manual; the step often missed is verifying the BIOS recognises the full 256GB at 2400MHz CL17 after boot.

When should I expect to replace the ECC LRDIMM modules in a 24/7 server?

ECC LRDIMMs typically run for the server's service life; replace only if memory diagnostics report uncorrectable errors or the system logs repeated corrected-error thresholds.

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