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Spremljani izdelki Prijava
Two green DDR4 RDIMM sticks with black chips and gold contacts

OWC

OWC 512GB (2x256GB) DDR4 3200 ECC Registered RDIMM memory upgrade

SKU CH-J3P0-RM266

A 512 GB DDR4 3200 ECC registered RDIMM kit of two 256 GB modules for the QNAP TS-h2490FU server

Capacity 512GB (2 x 256GB)

  • ECC registered reliability for server workloads
  • 512 GB total capacity in two 256 GB modules
  • DDR4 3200 speed with CL22 latency
  • 288-pin RDIMM form factor at 1.2 V
  • Validated for QNAP TS-h2490FU compatibility

Server-grade ECC RDIMM kit

This OWC memory kit provides 512 GB of DDR4 3200 ECC Registered RDIMM capacity across two 256 GB modules. It is built for workstations and servers that require registered memory with error correction. The kit is validated for the QNAP TS-h2490FU and cannot be used in standard desktop computers or mixed with unbuffered or load-reduced DIMMs.

JEDEC-standard voltage and timing

Each module operates at the standard 1.2 V DDR4 voltage with CL22 latency at 3200 MT/s. The octal-rank 8Rx4 organisation and 288-pin registered design follow JEDEC PC4-25600 specifications, ensuring stable operation in supported server platforms without exceeding the defined electrical envelope.

Cross-referenced part compatibility

The modules are cross-referenced to Samsung M393ABG40M52-CAE, Hynix HMAT14JXSRB120N and HMAT14JXSRB122N, and Supermicro MEM-DR425MI-ER32 part numbers. This matching simplifies procurement and qualification when expanding or replacing memory in qualified systems.

Poudarki

  • ECC registered reliability for server workloads
  • 512 GB total capacity in two 256 GB modules
  • DDR4 3200 speed with CL22 latency
  • 288-pin RDIMM form factor at 1.2 V
  • Validated for QNAP TS-h2490FU compatibility

Specifikacije

Za ta izdelek še ni objavljenih specifikacij.

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Vprašanja o tem izdelku

How do I install the 288-pin RDIMM modules in the TS-h2490FU and what step is often missed?

Power down the NAS, open the chassis, and seat each 256GB module firmly until the ejector clips click; the step most people miss is populating the correct DIMM slots per the TS-h2490FU memory guide so the 8Rx4 ranks are recognised.

What maintenance or replacement will the ECC registered RDIMM kit need over time?

The modules themselves require no scheduled maintenance; replacement is only needed if a DIMM fails or you expand capacity beyond the 512GB kit, at which point all DIMMs should match capacity, speed and manufacturer.

What limit appears first when the TS-h2490FU runs sustained workloads with this DDR4 3200 CL22 memory?

The CAS latency of 22 cycles at 3200 MT/s sets the baseline access delay; under continuous heavy load the memory controller’s throughput ceiling is reached before the 1.2V modules hit any thermal or voltage limit.

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