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Four green 240-pin DDR3 ECC registered DIMMs in static bags

OWC

OWC 128GB (4x32GB) DDR3 1066 PC3-8500 CL7 4Rx4 240-pin 1.5V ECC Registered RDIMM server RAM

SKU CH-WRF8-XHAVN

128 GB DDR3 ECC registered server memory kit, four 32 GB modules at 1066 MHz CL7

  • Capacity128GB (4 x 32GB)
  • Type240-Pin DDR3 ECC RDIMM
  • SpeedDDR3 1066 (PC3 8500)
  • CAS LatencyCL7
  • Voltage1.5V
  • ECCYes

Capacity 128GB (4 x 32GB)

Rank 4Rx4

  • 128GB total capacity across four 32GB modules
  • DDR3 1066 speed rated at PC3-8500 with CL7 latency
  • ECC registered design detects and corrects data errors
  • 5V operating voltage for standard server DIMM slots
  • 240-pin RDIMM form factor fits compatible workstation and server boards

OWC 128GB DDR3-1066 ECC Registered Kit

This OWC kit supplies 128 GB of DDR3 server memory as four 32 GB registered DIMMs rated at 1066 MHz with CL7 latency. The modules operate at 1.5 V and carry ECC plus register buffering for data integrity in multi-socket platforms. They are built to JEDEC PC3-8500 specifications and use a 240-pin form factor.

Suited for workstation and server upgrades only

The registered ECC design makes these modules compatible with select workstations, servers, NAS systems and routers that require buffered memory. They will not function in standard desktop computers that accept only unbuffered non-ECC DIMMs, and they cannot be mixed with unbuffered memory in the same system.

Registered ECC with 4Rx4 organisation

Each 32 GB DIMM uses a 4Rx4 rank structure, so the memory controller must support quad-rank registered modules at DDR3-1066. Verify that your platform’s qualified-vendor list includes 4Rx4 registered parts before purchase, as some systems limit rank count or require specific voltage settings.

Punti di forza

  • 128GB total capacity across four 32GB modules
  • DDR3 1066 speed rated at PC3-8500 with CL7 latency
  • ECC registered design detects and corrects data errors
  • 5V operating voltage for standard server DIMM slots
  • 240-pin RDIMM form factor fits compatible workstation and server boards

Caratteristiche tecniche

BrandOWC
Part Number8R5D34R4128S
Capacity128GB (4 x 32GB)
Type240-Pin DDR3 ECC RDIMM
SpeedDDR3 1066 (PC3 8500)
CAS LatencyCL7
Voltage1.5V
ECCYes
Buffered/RegisteredRegistered
Rank4Rx4
Multi-channel KitDual Channel Kit
Heat SpreaderNo

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Domande su questo articolo

How do I install the 4Rx4 240-pin DDR3 RDIMMs in a dual-channel server, and what step is often missed?

Populate matching slots per channel, ensure the registered ECC modules click fully into the 240-pin sockets, and enable ECC in BIOS — the step most often missed is verifying the memory mode after POST.

What maintenance or replacement will the 128 GB DDR3 1066 kit need over its service life?

No scheduled maintenance is required; the modules have no heat spreaders to clean, and JEDEC-compliant DDR3 DRAM is rated for continuous operation — replacement only occurs if a module fails.

What limit appears first when the 1.5 V CL7 RDIMMs run sustained workloads?

The DDR3 1066 bandwidth ceiling is reached before thermal or voltage limits, capping throughput at the PC3-8500 data rate under continuous load.

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