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Green rectangular circuit board with gold edge contacts and black memory chips

OWC

OWC 64GB DDR4 2933 ECC Registered RDIMM 2Rx4 HP Z6 G4

SKU CH-Z9WB-765SA

A 64GB DDR4 2933 ECC registered RDIMM module designed for the HP Z6 G4 workstation

  • Total capacity64 GB
  • Rated speedDDR4 2933 (PC4 23400)
  • CAS latencyCL21
  • Rated voltage1.2 V
  • Buffer typeRegistered
  • Memory rank2Rx4

Capacity 64GB

  • 64 GB capacity lets you run large workloads on HP Z6 G4
  • ECC registered design detects and corrects memory errors for server reliability
  • DDR4 2933 CL21 speed matches HP part numbers P19045-K21 and P00930-H21
  • Single 2Rx4 288-pin module installs in one slot for easy upgrade
  • 2 V operation reduces power draw while maintaining 23400 MT/s bandwidth

HP Z6 G4 Workstation Upgrade

This 64GB DDR4 2933 ECC Registered RDIMM is built specifically for the HP Workstation Z6 G4. It delivers error-correcting registered memory for servers, workstations and NAS systems that require data integrity. The single 2Rx4 module runs at 1.2V with CL21 latency.

Replaces HP OEM Modules

The module replaces HP part numbers including P19045-K21, P19045-B21, P00930-H21, P14636-001, P00930-K21, P06192-001, P03053-CA1, P00930-B21, P03053-1A1, P03053-0A1, P14492-B21 and P19045-H21. It is backward compatible with 2133MHz, 2400MHz and 2666MHz systems, so the jump is worth it when you need maximum capacity in a single slot.

For ECC Registered Platforms Only

This memory suits administrators upgrading HP Z6 G4 workstations or compatible server and NAS platforms that demand ECC Registered DIMMs. It will not work in standard desktop computers and cannot be mixed with unbuffered or ECC load-reduced modules. Buyers needing non-ECC or consumer DDR4 should look elsewhere.

How it compares

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

Price $371.99
Typical for this category: the median of 21,161 items is $397.99.
Total capacity 64 GB
Higher than about 60% of the 20,941 comparable items (median 32 GB).
Price per GB $5.81 per GB
Cheaper than about 67% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameOWC
Part number2R9D42R464 GB
Total capacity64 GB
Product type288-Pin DDR4 ECC RDIMM
Performance
Rated speedDDR4 2933 (PC4 23400)
Memory
CAS latencyCL21
ECC supportYes
Buffer typeRegistered
Memory rank2Rx4
Heat spreaderNo
Power
Rated voltage1.2 V
Compatibility
Compatible systemsHP Workstation Z6 G4

Other versions of this model

5 more in the same range

Questions about this item

Does the 288-pin DDR4 RDIMM fit the HP Z6 G4 memory slots?

Yes, the module uses the standard 288-pin DDR4 RDIMM form factor required by the HP Workstation Z6 G4.

What is the correct way to install this 2Rx4 ECC registered module, and what mistake should I avoid?

Power down, open the chassis, align the notch with the slot key, and press firmly until both clips lock; do not mix this registered DIMM with unbuffered or load-reduced memory.

Will this 64 GB module need any firmware updates or component replacements during its service life?

No firmware updates are required for the memory itself; the module is backed by a limited lifetime warranty and advanced replacement program if a defect ever occurs.

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