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OWC

OWC 512GB (4x128GB) DDR4-2933 ECC LRDIMM for HP Z8 G4

SKU CH-8A7F-49J5M

A 512GB kit of four 128GB DDR4-2933 ECC load-reduced DIMMs validated for the HP Z8 G4 workstation

  • Capacity512GB (4 x 128GB)
  • Type288-Pin DDR4 ECC LRDIMM
  • SpeedDDR4 2933 (PC4 23400)
  • CAS LatencyCL21
  • Voltage1.2V
  • ECCYes

Capacity 512GB (4 x 128GB)

  • ECC load-reduced design protects data integrity in critical workloads
  • 512 GB total capacity across four 128 GB modules expands memory headroom
  • DDR4-2933 speed with CL21 latency delivers responsive throughput
  • 2 V operation reduces power draw under load
  • Backward compatible with 2133, 2400 and 2666 MHz systems for flexible deployment

Capacity and Configuration

This kit provides 512GB of DDR4 memory across four 128GB modules. It is built for the HP Workstation Z8 G4 and uses the 288-pin LRDIMM form factor with ECC and load-reduced buffering.

Workstation and Server Focus

The modules suit users upgrading or repairing an HP Z8 G4 that requires registered ECC LRDIMM memory. They will not work in standard desktop boards, nor can they be mixed with unbuffered or standard registered DIMMs.

Sustained Operation

Running at 2933MHz with CL21 latency and 1.2V, the kit maintains JEDEC-compliant stability under continuous load. Backward compatibility with 2133MHz, 2400MHz and 2666MHz speeds allows the system to train reliably at lower frequencies when populated fully.

Privalumai

  • ECC load-reduced design protects data integrity in critical workloads
  • 512 GB total capacity across four 128 GB modules expands memory headroom
  • DDR4-2933 speed with CL21 latency delivers responsive throughput
  • 2 V operation reduces power draw under load
  • Backward compatible with 2133, 2400 and 2666 MHz systems for flexible deployment

Specifikacijos

BrandOWC
Part Number2L9D44R4512S
Capacity512GB (4 x 128GB)
Type288-Pin DDR4 ECC LRDIMM
SpeedDDR4 2933 (PC4 23400)
CAS LatencyCL21
Voltage1.2V
ECCYes
Buffered/RegisteredLoad Reduced
Rank4Rx4
Heat SpreaderNo
Compatible SystemHP Workstation Z8 G4

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Does the HP Z8 G4 workstation need to support DDR4 ECC LRDIMM memory for this 512GB kit to work?

Yes, the HP Z8 G4 must support DDR4 ECC Load Reduced DIMMs; this kit uses 288-pin 4Rx4 modules at 1.2V and will not work with unbuffered or registered ECC memory.

Can I keep my existing 2133MHz, 2400MHz or 2666MHz DDR4 ECC LRDIMMs and add these 2933MHz modules?

The kit is backward compatible with 2133MHz, 2400MHz and 2666MHz speeds, but all modules must be ECC Load Reduced; mixing with unbuffered or registered ECC DIMMs is not supported.

How can I verify the kit is running at the correct 2933MHz speed and CL21 latency after installation?

Check the system BIOS or a hardware utility such as CPU-Z; it should report DDR4-2933 (PC4-23400) at CL21 for each of the four 128GB modules.

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