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Two green DDR3 RDIMM modules with gold contacts and black chips side by side

OWC

OWC 16GB (2x8GB) DDR3 1333 ECC Registered RDIMM 1R3D32R4016P

SKU CH-K28G-Q9VYR

16 GB DDR3 1333 ECC registered RDIMM kit for HP ProLiant G6/G7 servers

  • Total capacity16 GB (2 × 8 GB)
  • Rated speedDDR3 1333 (PC3 10600)
  • CAS latencyCL9
  • Rated voltage1.5 V
  • Buffer typeRegistered
  • Memory rank2Rx4

Capacity 16GB (2 x 8GB)

  • 16 GB DDR3 ECC registered kit for server reliability
  • CL9 latency at 1333 MHz for responsive workloads
  • 5 V operation matches original HP specifications
  • 240-pin 2Rx4 modules fit DL360 G7, DL370 G6, DL380 G7, DL385 G7, DL580 G7
  • Replaces HP part numbers 500205071, 500205171, 500206071, 501536001, 500662B21, 593913B21, A0R56A, AM231A, AM328A, FX622AA, FX622UT

16GB DDR3 ECC RDIMM kit for HP ProLiant G6/G7

This 16GB kit contains two 8GB DDR3 1333 registered DIMMs built to PC3-10600 CL9 timings at 1.5V. It is designed for HP ProLiant DL360 G7, DL370 G6, DL380 G7, DL385 G7 and DL580 G7 servers that require ECC registered memory. Standard desktop systems cannot use these modules.

Thermals noise and power in normal use

The modules operate at the standard 1.5V DDR3 voltage with no heat spreader, relying on server chassis airflow for cooling. Registered buffering reduces electrical load on the memory controller, helping keep power draw predictable in multi-DIMM configurations. No active cooling or additional fan speed is required beyond the server's stock thermal design.

Upgrade path and when the jump is worth it

This kit replaces HP part numbers such as 500205071, 500662B21, 593913B21 and A0R56A, matching the original 1333 MHz registered ECC specification. It is not compatible with unbuffered UDIMMs, so mixed populations are not supported. Builders who need capacities beyond 16GB per channel or speeds above DDR3 1333 must select different modules.

How it compares

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

Price $41.99
Cheaper than about 80% of the 21,161 comparable items (median $397.99).
Total capacity 16 GB (2 × 8 GB)
Lower than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $2.62 per GB
Cheaper than about 91% of the 20,941 comparable items (median $8.19 per GB).

New to this? Buying memory and SSDs with crypto — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameOWC
Part number1R3D32R4016P
Total capacity16 GB (2 × 8 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 DL360 G7
HP ProLiant DL370 G6
HP ProLiant DL380 G7
HP ProLiant DL385 G7
HP ProLiant DL580 G7

Other versions of this model

5 more in the same range

Questions about this item

How do I install these 240-pin DDR3 1333 RDIMMs in an HP ProLiant DL380 G7 and what slot-population rule do people miss?

Power down the server, open the chassis, and insert each 8 GB module into the correct DIMM slot for its CPU channel; the common mistake is populating slots for a second processor that isn't installed, which leaves the memory unrecognised.

What maintenance or replacement will this 16 GB ECC registered kit need over its service life?

No routine maintenance is required; if a module fails, replace the faulty 8 GB RDIMM with an identical DDR3 1333 CL9 2Rx4 1.5 V part to keep ECC and registered operation consistent.

What limit appears first when these CL9 1.5 V modules run under sustained load in a DL360 G7?

The DDR3 1333 bus and CL9 latency set the throughput ceiling, so memory bandwidth saturates before the 16 GB capacity or the 1.5 V thermal envelope becomes the bottleneck.

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