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Green circuit board with black memory chips and gold edge connectors

OWC

OWC 8GB DDR3 1333 ECC Registered RDIMM 2Rx4 240-pin 1.5V memory upgrade

SKU CH-5475-Y6XTB

8GB DDR3 1333 ECC registered RDIMM for HP ProLiant SL165s G7, SL170s G6, SL335s G7, SL390s G7 and WS460c G6 servers

  • Total capacity8 GB
  • Rated speedDDR3 1333 (PC3 10600)
  • CAS latencyCL9
  • Rated voltage1.5 V
  • Buffer typeRegistered
  • Memory rank2Rx4

Capacity 8GB

  • ECC registered design protects data integrity in servers
  • DDR3 1333 CL9 speed matches HP ProLiant specs
  • 8 GB 2Rx4 module expands memory capacity efficiently
  • 5 V operation meets JEDEC standard for compatibility
  • Replaces HP part numbers including 500662B21 and 593913B21

Server ECC RDIMM upgrade

This 8GB DDR3 1333 PC3-10600 CL9 module is a registered ECC RDIMM built for HP ProLiant SL165s G7, SL170s G6, SL335s G7, SL390s G7 and WS460c G6 servers. It targets administrators who need to expand memory capacity in those specific platforms without mixing buffered and unbuffered DIMMs.

Verify registered ECC support

Confirm the server requires registered ECC DDR3 RDIMMs at 1.5V with a 2Rx4 organisation and 240-pin form factor. The module will not work in standard desktop boards or in systems that only accept unbuffered non-ECC memory, so the platform must explicitly support registered ECC operation.

Sustained server workloads

Registered ECC construction corrects single-bit errors and reduces electrical load on the memory controller during continuous operation. The 1.5V JEDEC-compliant design maintains stable timing under long-running virtualisation, database or compute tasks where consumer modules would risk data corruption or throttling.

How it compares

Measured against everything we stock in Model-Specific Memory Upgrades, at today’s prices. Recalculated every night.

Price $22.99
Cheaper than about 89% of the 21,161 comparable items (median $397.99).
Total capacity 8 GB
Lower than about 80% of the 20,941 comparable items (median 32 GB).
Price per GB $2.87 per GB
Cheaper than about 90% of the 20,941 comparable items (median $8.19 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
Compatibility
Compatible systemsHP ProLiant SL165s G7
HP ProLiant SL170s G6
HP ProLiant SL335s G7
HP ProLiant SL390s G7
HP ProLiant WS460c G6

Other versions of this model

5 more in the same range

Questions about this item

Does the 8 GB DDR3 1333 CL9 ECC Registered RDIMM arrive as a single stick or a kit, and are any brackets or tools included?

The upgrade consists of one 8 GB 240-pin DDR3 ECC Registered DIMM. No brackets, screws or installation tools are supplied.

Should I pick the 2Rx4 1.5 V PC3-10600 module or a different rank or voltage for my HP ProLiant SL165s G7?

Use the 2Rx4 1.5 V PC3-10600 module listed. The supported ProLiant models require registered ECC DDR3 at this voltage and rank; unbuffered or different-voltage DIMMs will not work.

What does the PC3-10600 1333 MHz rating deliver once the DIMM is installed in a ProLiant SL390s G7?

The module runs at DDR3 1333 with CL9 latency, providing 10 600 MB/s peak bandwidth per channel and full ECC error correction for server workloads.

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