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Four green DDR5 RDIMM sticks, black chips, no heat spreaders

OWC

OWC 256GB (4x64GB) DDR5 4800 CL40 ECC Registered RDIMM server RAM

SKU CH-8DQ4-FSBYV

256 GB DDR5 4800 ECC registered RDIMM kit with four 64 GB modules at CL40 and 1.1 V for servers and workstations

  • Capacity256GB (4 x 64GB)
  • Type288-Pin DDR5 ECC RDIMM
  • SpeedDDR5 4800 (PC5 38400)
  • CAS LatencyCL40
  • Voltage1.1V
  • ECCYes

Capacity 256GB (4 x 64GB)

Lihat 4 konfigurasi lagi

Rank 2Rx4

  • 256 GB total capacity across four 64 GB modules
  • DDR5 4800 speed rated at PC5-38400 bandwidth
  • CL40 CAS latency at 1.1 V operating voltage
  • ECC registered RDIMM with 2Rx4 rank for server reliability
  • JEDEC and RoHS compliant with lifetime warranty support

256 GB DDR5 ECC Registered RDIMM kit

This OWC kit provides 256 GB of DDR5 server memory across four 64 GB registered DIMMs. It is built for workstations and servers that require ECC error correction and registered signal buffering. The modules run at 4800 MT/s with CL40 latency at 1.1 V. They are not compatible with standard desktop computers.

Suited for ECC registered platforms only

This memory suits administrators upgrading or populating servers and workstations that explicitly support DDR5 ECC registered RDIMMs. It will not function in systems that accept only unbuffered or load-reduced ECC modules. Buyers who need non-ECC desktop memory or a different form factor should look at other products.

Verify DDR5 RDIMM slot support first

Before ordering, confirm that your motherboard or server chassis accepts 288-pin DDR5 registered DIMMs with ECC enabled. Check the qualified vendor list for 64 GB 2Rx4 modules at 4800 speed. Ensure the platform does not restrict registered memory population rules or mixed-rank configurations.

Ciri-ciri utama

  • 256 GB total capacity across four 64 GB modules
  • DDR5 4800 speed rated at PC5-38400 bandwidth
  • CL40 CAS latency at 1.1 V operating voltage
  • ECC registered RDIMM with 2Rx4 rank for server reliability
  • JEDEC and RoHS compliant with lifetime warranty support

Spesifikasi

BrandOWC
Part Number4R8D52R4256S
Capacity256GB (4 x 64GB)
Type288-Pin DDR5 ECC RDIMM
SpeedDDR5 4800 (PC5 38400)
CAS LatencyCL40
Voltage1.1V
ECCYes
Buffered/RegisteredRegistered
Rank2Rx4
Multi-channel KitDual Channel Kit
Heat SpreaderNo

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What motherboard slot and memory type does this 288-pin DDR5 RDIMM kit require?

The kit uses 288-pin DDR5 RDIMM modules that must be installed in a workstation or server motherboard with DDR5 RDIMM slots; standard desktop DDR5 slots will not accept registered modules.

Can I mix these CL40 2Rx4 registered DIMMs with unbuffered or load-reduced ECC memory already in my system?

No — the manufacturer states this registered ECC kit cannot be mixed with unbuffered or load-reduced ECC memory; all slots should use identical registered ECC modules.

How do I confirm the 4800 MT/s speed and ECC function are active after installing the four 64 GB modules?

Enter the system BIOS or use an OS memory utility to verify the reported speed shows 4800 MT/s, total capacity reads 256 GB, and ECC status is reported as enabled or active.

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