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

OWC

OWC 1R3D32R408GB 8GB DDR3 1333 PC3-10600 CL9 2Rx4 240-pin 1.5V ECC Registered RDIMM Server RAM

SKU CH-HCX8-WHA2V

8 GB DDR3 1333 ECC registered server memory module with CL9 latency and 1.5 V operation

  • Total capacity8 GB
  • Rated speedDDR3 1333 (PC3 10600)
  • CAS latencyCL9
  • Rated voltage1.5 V
  • Buffer typeRegistered
  • Memory rank2Rx4
  • ECC registered design protects data integrity in servers
  • 8 GB DDR3 1333 PC3-10600 CL9 expands memory capacity
  • 240-pin 1.5 V RDIMM fits compatible server slots
  • 2Rx4 dual-rank organisation increases bandwidth per module
  • JEDEC and RoHS compliant for warranty-safe upgrades

Server ECC Registered RDIMM

This OWC module is an 8GB DDR3 1333 PC3-10600 CL9 ECC Registered RDIMM built for workstations and servers. It operates at 1.5V with a 2Rx4 rank configuration on a 240-pin interface. The part number 1R3D32R408GB matches Lenovo part numbers 0A89412, 46C0542, 46C7449, 46U3419 and 49Y1436 for direct replacement.

Build Integration Requirements

The module requires a platform that supports DDR3 ECC Registered memory and cannot be used in standard desktop computers. It must not be mixed with unbuffered DIMMs in the same system. JEDEC and ROHS compliance ensures a warranty-safe upgrade for compatible server or workstation motherboards.

Sustained Load Behaviour

Every module is tested in-house to meet or exceed OEM specifications for long-term reliability. ECC functionality detects and corrects single-bit errors during continuous operation, maintaining data integrity under sustained workloads. OWC recommends populating all slots with identical capacity, speed and manufacturer modules for optimal stability.

How it compares

Measured against everything we stock in ECC Server RAM, at today’s prices. Recalculated every night.

Price $20.99
Cheaper than about 94% of the 6,523 comparable items (median $188.99).
Total capacity 8 GB
Lower than about 80% of the 6,064 comparable items (median 32 GB).
Price per GB $2.62 per GB
Cheaper than about 91% of the 6,064 comparable items (median $7.25 per GB).

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Specifications

Product
Brand nameOWC
Part number1R3D32R408 GB
Total capacity8 GB
Product type240-Pin DDR3 ECC RDIMM
Performance
Rated speedDDR3 1333 (PC3 10600)
Memory
CAS latencyCL9
ECC supportYes
Buffer typeRegistered
Memory rank2Rx4
Heat spreaderNo
Power
Rated voltage1.5 V

Questions about this item

What is the maximum sustained speed this 1333 MHz DDR3 module can maintain under continuous server workloads?

The module is rated for DDR3 1333 (PC3-10600) operation at CL9 latency with 1.5V voltage, maintaining JEDEC-standard performance during extended use.

How much heat does this registered ECC DIMM generate when running 24/7 without a heat spreader?

As a 1.5V DDR3 1333 registered module without a heat spreader, it operates within standard JEDEC thermal limits for server environments with adequate airflow.

Which server motherboard slot and chipset combination is required for this 240-pin 2Rx4 registered memory to function?

This 240-pin DDR3 ECC registered RDIMM requires a server or workstation motherboard with registered memory support and cannot be used in standard desktop systems.

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