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Two green DDR3 ECC registered RDIMM modules in anti-static packaging

OWC

OWC 16GB (2x8GB) DDR3 1333 CL9 ECC Registered RDIMM HP Z800

SKU CH-H1BT-6QPDR

16 GB dual-channel DDR3 1333 ECC registered kit for HP Z800 workstations

  • 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 ECC registered kit for HP Z800 workstations
  • DDR3 1333 CL9 modules run at 1.5 V
  • 240-pin 2Rx4 RDIMMs replace ten HP part numbers
  • JEDEC and RoHS compliant for warranty-safe upgrades
  • Matched 2 x 8 GB pair ensures optimal performance

HP Z800 memory upgrade kit

This OWC kit supplies 16GB of DDR3 ECC registered memory in two 8GB modules built for the HP Workstation Z800. It runs at 1333 MT/s with CL9 latency at 1.5V and uses a 240-pin RDIMM form factor. The modules are 2Rx4 ranked and carry no heat spreader.

Sustained workload behaviour

ECC registered DIMMs add error correction and a register that buffers address and command signals, reducing electrical load on the memory controller during long compute jobs. This design helps maintain data integrity and stable throughput when the workstation runs extended rendering, simulation or virtualisation tasks.

Compatibility checks

Verify that your Z800 currently uses registered ECC memory, because this kit cannot mix with unbuffered modules. Confirm the system accepts 2Rx4 8GB DDR3 1333 RDIMMs and that you have two free 240-pin slots. This memory is not compatible with standard desktop platforms.

How it compares

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

Price $39.99
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 $2.50 per GB
Cheaper than about 92% of the 20,941 comparable items (median $8.19 per GB).

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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 Workstation Z800

Other versions of this model

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Questions about this item

How much power does the 1.5V DDR3 1333 kit draw when the Z800 runs all day?

Each module operates at 1.5V, the standard DDR3 voltage, so power draw matches JEDEC specs for registered DIMMs at this speed.

What must the HP Z800 already have for this 240-pin ECC registered kit to work?

The workstation needs a CPU and chipset that support DDR3 1333 registered ECC memory, plus free 240-pin DIMM slots.

Can I mix these 2Rx4 CL9 modules with the original HP 500205071 or 500662B21 sticks?

Yes, they replace those HP part numbers directly; all DIMMs must be registered ECC at the same speed and voltage.

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