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Four green DDR3 server DIMMs with gold contacts, no heat spreaders

OWC

OWC 64GB (4x16GB) DDR3 1066 PC3-8500 CL7 2Rx4 240-pin 1.5V ECC Registered RDIMM server RAM

SKU CH-CTSZ-9PMSA

ECC registered DDR3 kit adds 64 GB across four 16 GB modules running at 1066 MHz CL7 for compatible servers and workstations

  • Capacity64GB (4 x 16GB)
  • Type240-Pin DDR3 ECC RDIMM
  • SpeedDDR3 1066 (PC3 8500)
  • CAS LatencyCL7
  • Voltage1.5V
  • ECCYes

Capacity 64GB (4 x 16GB)

Rank 2Rx4

  • ECC registered design protects data integrity in critical workloads
  • 64 GB kit (4 × 16 GB) expands memory capacity for virtualization
  • DDR3 1066 PC3-8500 CL7 matches JEDEC specifications for reliable operation
  • 5 V registered modules reduce electrical load on server memory controllers
  • 240-pin 2Rx4 form factor fits compatible workstation and server slots

Server ECC Registered DDR3 Kit

This 64GB kit contains four 16GB DDR3 1066 PC3-8500 CL7 registered DIMMs built for workstations, servers and NAS systems. The modules are JEDEC-standard and RoHS compliant, tested to meet OEM specifications for reliable operation in multi-channel configurations. They are not compatible with standard desktop computers or unbuffered memory.

Registered ECC with 2Rx4 Organisation

The single specification that decides fitment is the registered ECC design with a 2Rx4 rank structure on 240-pin DDR3. Only systems that explicitly support registered error-correcting modules at this speed and voltage will recognise the kit.

Low-Voltage Operation for Dense Configurations

Each module runs at 1.35V, reducing power draw and heat output when all four slots are populated. The absence of heat spreaders relies on chassis airflow, so typical server cooling keeps temperatures and acoustic levels low under normal workloads.

Points forts

  • ECC registered design protects data integrity in critical workloads
  • 64 GB kit (4 × 16 GB) expands memory capacity for virtualization
  • DDR3 1066 PC3-8500 CL7 matches JEDEC specifications for reliable operation
  • 5 V registered modules reduce electrical load on server memory controllers
  • 240-pin 2Rx4 form factor fits compatible workstation and server slots

Caractéristiques

BrandOWC
Part Number8R5D32R4064S
Capacity64GB (4 x 16GB)
Type240-Pin DDR3 ECC RDIMM
SpeedDDR3 1066 (PC3 8500)
CAS LatencyCL7
Voltage1.5V
ECCYes
Buffered/RegisteredRegistered
Rank2Rx4
Multi-channel KitDual Channel Kit
Heat SpreaderNo

Autres versions de ce modèle

5 de plus dans cette gamme

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Questions sur cet article

How does the DDR3 1066 CL7 speed affect real-world server performance?

The kit runs at 1066 MT/s with CL7 timing, so data moves at the rated PC3-8500 rate when the platform memory controller is set to that speed.

What does the 240-pin ECC Registered DDR3 interface limit in practice?

The modules use 240-pin DDR3 ECC Registered signalling, which requires a server or workstation memory controller that supports registered DIMMs; they will not work in standard desktop boards.

What physical clearance do the 16 GB RDIMMs need inside the chassis?

Each module is a standard-height 240-pin RDIMM without a heat spreader, so it fits any slot that accepts full-height registered DDR3 DIMMs.

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