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Two green 240-pin DDR3 RDIMM modules in static bags

OWC

OWC 64GB (2x32GB) DDR3 1066 PC3-8500 CL7 4Rx4 240-pin 1.5V ECC Registered RDIMM server RAM

SKU CH-P31Q-DV0YK

64 GB dual-channel DDR3 ECC registered RDIMM kit running at 1066 MHz with CL7 latency for servers and workstations

  • Capacity64GB (2 x 32GB)
  • Type240-Pin DDR3 ECC RDIMM
  • SpeedDDR3 1066 (PC3 8500)
  • CAS LatencyCL7
  • Voltage1.5V
  • ECCYes

Capacity 64GB (2 x 32GB)

Rank 4Rx4

  • ECC registered design protects data integrity in servers
  • 64 GB dual-channel kit maximises memory capacity
  • DDR3 1066 CL7 timing supports legacy platforms
  • 5 V JEDEC-standard voltage ensures broad compatibility
  • 240-pin RDIMM form factor fits select workstations

Capacity and Platform Fit

This 64 GB kit delivers two 32 GB DDR3 ECC Registered DIMMs for dual-channel operation in compatible workstations and servers. The modules run at 1066 MHz with CL7 latency and 1.5 V nominal voltage. They are not compatible with standard desktop boards or unbuffered memory configurations.

Sustained Workload Behaviour

ECC circuitry detects and corrects single-bit errors in real time, maintaining data integrity during long compute runs or heavy virtualization loads. Registered buffering reduces electrical load on the memory controller, allowing the dual-channel kit to remain stable at the rated 1066 MHz speed across extended sessions.

Thermals Noise and Power

Bare modules without heat spreaders rely on chassis airflow for cooling; the 1.5 V operating voltage keeps power draw modest for DDR3 server memory. Silent operation is inherent with no moving parts, and the JEDEC-standard 240-pin form factor fits standard DIMM slots in qualified platforms.

Points forts

  • ECC registered design protects data integrity in servers
  • 64 GB dual-channel kit maximises memory capacity
  • DDR3 1066 CL7 timing supports legacy platforms
  • 5 V JEDEC-standard voltage ensures broad compatibility
  • 240-pin RDIMM form factor fits select workstations

Caractéristiques

BrandOWC
Part Number8R5D34R4064P
Capacity64GB (2 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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Questions sur cet article

How much power does the 1.5 V 4Rx4 DDR3 1066 kit draw under continuous server load?

Each 32 GB module runs at 1.5 V; total kit capacity is 64 GB across two DIMMs.

What motherboard slot and chipset features are required for these 240-pin ECC registered DIMMs?

Requires a 240-pin DDR3 slot that supports ECC registered (RDIMM) memory; unbuffered slots will not work.

Can I add this 64 GB DDR3 1066 kit alongside existing 1.35 V DDR3 modules in the same server?

All modules must run at a common voltage; mixing 1.5 V and 1.35 V DIMMs is not supported.

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