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Green circuit board with gold contacts and black memory chips

OWC

OWC 256GB DDR4 3200 CL22 8Rx4 288-pin ECC LRDIMM 1.2V memory upgrade

SKU CH-5C5W-C6YFC

A 256 GB DDR4 3200 CL22 ECC load-reduced DIMM for compatible Gigabyte servers and workstations

Capacity 256GB

  • Single 256 GB module maximises server capacity with one slot
  • DDR4 3200 MHz CL22 speed handles heavy workloads efficiently
  • ECC load-reduced design ensures data integrity for critical tasks
  • 2 V operation lowers power draw in dense configurations
  • Backward compatible with 2133, 2400, 2666 and 2933 MHz systems

Server-grade capacity upgrade

This single 256GB DDR4 module delivers 3200MHz CL22 performance in an 8Rx4 load-reduced ECC DIMM. It is built for Gigabyte R181-Z91, R181-Z92, R182-340, R182-34A and R182-M80 servers, workstations and NAS systems that require registered LRDIMM memory. The part will not work in standard desktop computers or alongside unbuffered and registered ECC modules.

Thermals and power draw

Operating at 1.2V, the module follows JEDEC-standard voltage for DDR4 load-reduced memory. Lower voltage reduces heat output compared with higher-voltage server DIMMs, helping chassis airflow stay stable under sustained workloads. No active cooling is required on the module itself.

Build and installation

The 288-pin form factor fits standard DDR4 LRDIMM slots on the qualified Gigabyte platforms. Backward compatibility with 2133MHz, 2400MHz, 2666MHz and 2933MHz buses allows deployment in mixed-speed configurations without manual tuning. JEDEC and RoHS compliance ensures a warranty-safe upgrade path for existing infrastructure.

How it compares

Measured against everything we stock in Model-Specific Memory Upgrades, at today’s prices. Recalculated every night.

Price $1,544.99
Pricier than about 65% of the 21,161 comparable items (median $397.99).

New to this? Buying memory and SSDs with crypto — what to check, what it costs to pay, and what is never asked for.

Specifications

No published specifications for this item yet.

Other versions of this model

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Questions about this item

How do I install the 288-pin ECC Load Reduced DIMM in a Gigabyte R181-Z91, and what step is often missed?

Power down the server, open the chassis, align the notch on the 288-pin module with the slot key, press firmly until both retention clips click, then verify in BIOS that the 256GB module registers at 3200MHz CL22; the step often missed is confirming the memory mode is set to Load Reduced rather than Registered.

What maintenance or replacement will the 256GB DDR4 3200 CL22 module need over its service life?

No scheduled maintenance is required; keep air intakes clean so the 1.2V modules stay within thermal limits, run periodic memory diagnostics, and replace the DIMM only if ECC correctable-error counters rise sharply or a diagnostic reports uncorrectable failures.

What limit appears first when the 8Rx4 LRDIMM runs sustained workloads at 3200MHz?

The memory controller's maximum supported rank count per channel is reached before bandwidth or thermal limits, so population rules for the Gigabyte R181-Z91, R182-340 and similar platforms dictate how many 8Rx4 modules can be installed simultaneously.

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