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Four green DDR3 ECC registered DIMMs in anti-static tray

OWC

OWC 64GB (4x16GB) DDR3 1333 ECC Registered DIMM memory upgrade for HP Workstation Z800

SKU CH-A1BE-T5Q87

Four 16 GB DDR3 1333 ECC registered DIMMs add 64 GB to an HP Workstation Z800

  • Total capacity64 GB (4 × 16 GB)
  • Rated speedDDR3 1333 (PC3 10600)
  • CAS latencyCL9
  • Rated voltage1.5 V
  • Buffer typeRegistered
  • Memory rank2Rx4

Capacity 64GB (4 x 16GB)

  • 64 GB kit expands Z800 memory capacity
  • Four matched 16 GB modules simplify installation
  • ECC registered design protects data integrity
  • DDR3 1333 CL9 meets JEDEC standard
  • 5 V 240-pin DIMMs fit Z800 slots

64GB DDR3 ECC Registered Kit for Z800

This OWC kit supplies 64GB of DDR3 1333 ECC Registered memory in four 16GB modules. It is built for the HP Workstation Z800 and follows JEDEC PC3-10600 CL9 timing at 1.5V. The 2Rx4 registered DIMMs are designed for workstation and server platforms that require error-correcting registered memory.

Replaces non-ECC or smaller registered sets

The kit upgrades a Z800 that currently runs unbuffered non-ECC DIMMs or a lower-capacity registered configuration. The jump is worthwhile when the workload needs ECC data integrity and the full 64GB capacity across all four slots. It will not benefit a standard desktop that cannot accept registered modules.

Verify Z800 registered DIMM support before ordering

Confirm the workstation accepts 240-pin DDR3 ECC Registered DIMMs at 1333 MT/s and 1.5V. The system must support 2Rx4 registered modules and cannot mix them with unbuffered memory. Check the Z800 service guide for the maximum supported capacity per slot and total population rules.

How it compares

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

Price $175.99
Cheaper than about 59% of the 21,161 comparable items (median $397.99).
Total capacity 64 GB (4 × 16 GB)
Higher than about 60% of the 20,941 comparable items (median 32 GB).
Price per GB $2.75 per GB
Cheaper than about 91% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameOWC
Part number1R3D32R4064S
Total capacity64 GB (4 × 16 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

5 more in the same range

Questions about this item

Will the 240-pin DDR3 DIMMs fit the HP Z800 memory slots without a heat spreader?

Yes, the kit uses standard 240-pin DDR3 ECC registered DIMMs with no heat spreader, matching the Z800 slot layout.

What is the correct way to install the four 16 GB modules so the Z800 recognises all 64 GB?

Populate the slots in matched channel pairs as shown in the Z800 service guide; the common mistake is mixing registered and unbuffered DIMMs, which this kit avoids.

When should the ECC registered modules be replaced if error counts start rising?

ECC registered DDR3 DIMMs have no moving parts; replace only if the system logs uncorrectable errors or fails memory diagnostics.

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