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Green circuit board DDR3 RDIMM with black memory chips and gold edge contacts

OWC

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

SKU CH-RN8H-ZZQPD

8GB DDR3 1333 ECC registered RDIMM for server and workstation upgrades

  • 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
  • 8GB capacity at 1333 MHz boosts multitasking headroom
  • 240-pin DDR3 form factor fits registered DIMM slots
  • 5 V operation matches JEDEC standard for lower power
  • CL9 latency with 2Rx4 organisation optimises throughput

Product Identity

This OWC 8GB DDR3 1333 PC3-10600 CL9 2Rx4 240-pin 1.5V ECC Registered RDIMM is a server-grade memory module built to JEDEC and ROHS standards. It carries part number 1R3D32R408GB and matches several Supermicro reference parts for direct replacement in qualified platforms.

Target Use

Suits administrators upgrading or repairing registered-ECC DDR3 servers and workstations that require 2Rx4 modules at 1333 MT/s. Not for standard desktop PCs, laptops or any system that only accepts unbuffered non-ECC memory, nor for platforms that need a different rank organisation or voltage.

Build Integration

Installs in 240-pin DDR3 RDIMM slots on boards that support registered ECC operation at 1.5V. Using identical capacity, speed and rank across all populated channels lets the memory controller run at its rated 1333 MT/s without down-clocking. No heat spreader is fitted, so airflow across the module must be provided by the chassis design.

How it compares

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

Price $23.99
Cheaper than about 93% 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 $3.00 per GB
Cheaper than about 89% 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

My motherboard has 240-pin DDR3 slots — will this 240-pin DDR3 1333 module fit and run at PC3-10600 speed?

Yes — the module is a 240-pin DDR3 1333 (PC3-10600) RDIMM, so it fits any 240-pin DDR3 slot wired for registered ECC memory.

Can I add this 2Rx4 registered ECC stick alongside the unbuffered ECC DIMMs already in my server?

No — registered and unbuffered ECC cannot be mixed; all slots must use registered modules of the same rank and voltage.

After installation, how do I confirm the module is running at CL9 latency and 1.5 V?

Enter the BIOS or use a hardware-info utility; the SPD will report DDR3-1333, CL9, 1.5 V, and registered ECC operation.

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