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Green 240-pin DDR3 RDIMM module with black memory chips, no heat spreader

OWC

OWC 32GB DDR3 1066 PC3-8500 CL7 4Rx4 240-pin 1.5V ECC Registered RDIMM server RAM

SKU CH-7KMP-VM8K4

A 32 GB DDR3 ECC registered RDIMM running at 1066 MHz with CL7 latency for compatible servers and workstations

  • Capacity32GB
  • Type240-Pin DDR3 ECC RDIMM
  • SpeedDDR3 1066 (PC3 8500)
  • CAS LatencyCL7
  • Voltage1.5V
  • ECCYes

Capacity 32GB

Rank 4Rx4

  • 32 GB single module doubles server capacity
  • ECC registered design detects and corrects data errors
  • DDR3 1066 PC3-8500 CL7 matches qualified platform specs
  • 240-pin 1.5 V RDIMM fits approved workstation slots
  • JEDEC and RoHS compliant for warranty-safe upgrades

32GB DDR3 ECC Registered RDIMM

This single 32GB module uses 240-pin DDR3 technology running at 1066 MHz with CL7 latency. It is built for workstations, servers and NAS systems that require ECC registered memory. The module operates at 1.5V and follows JEDEC-standard PC3-8500 specifications.

Verify registered ECC support and voltage

Before ordering, confirm your system accepts 240-pin DDR3 registered ECC DIMMs and cannot use unbuffered modules. The platform must support 4Rx4 rank organisation and a 1.5V supply. Mixing this stick with non-ECC or unbuffered memory will prevent boot.

Thermals noise and power draw

Without a heat spreader the module relies on chassis airflow for cooling. Registered ECC designs typically draw slightly more power than unbuffered equivalents at the same voltage. Expect low acoustic impact because no active cooling is attached to the DIMM itself.

Highlights

  • 32 GB single module doubles server capacity
  • ECC registered design detects and corrects data errors
  • DDR3 1066 PC3-8500 CL7 matches qualified platform specs
  • 240-pin 1.5 V RDIMM fits approved workstation slots
  • JEDEC and RoHS compliant for warranty-safe upgrades

Specifications

BrandOWC
Part Number8R5D34R432GB
Capacity32GB
Type240-Pin DDR3 ECC RDIMM
SpeedDDR3 1066 (PC3 8500)
CAS LatencyCL7
Voltage1.5V
ECCYes
Buffered/RegisteredRegistered
Rank4Rx4
Heat SpreaderNo

Other versions of this model

5 more in the same range

Same family, different memory, cooler or clock — compare before you commit.

Questions about this item

Does the 32 GB DDR3 1066 module ship alone or with extra cables or brackets?

The upgrade consists of a single 32 GB DDR3 1066 PC3-8500 CL7 4Rx4 240-pin 1.5 V ECC Registered DIMM. No cables, brackets or additional hardware are included.

Should I choose the 1.5 V or 1.35 V variant for a server that specifies PC3-8500 CL7 registered memory?

The listed module operates at 1.5 V. Select this version when the system requires standard-voltage DDR3 registered DIMMs; the 1.35 V variant is a separate low-voltage part.

What does the 1066 MT/s rating mean for real-world throughput in a registered ECC server?

At 1066 MT/s the module delivers a peak bandwidth of 8 500 MB/s per channel, with CL7 latency and registered buffering for stable ECC operation in multi-DIMM configurations.

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