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Green circuit board with gold contacts and black memory chips, no heat spreader

OWC

OWC 128GB DDR4 3200 CL22 4Rx4 ECC LRDIMM memory upgrade HP Apollo 4200 Gen10 Plus

SKU CH-KNZJ-FZG7M

A 128GB DDR4 3200 ECC load-reduced DIMM validated for the HP Apollo 4200 Gen10 Plus server

  • Capacity128GB
  • Type288-Pin DDR4 ECC LRDIMM
  • SpeedDDR4 3200 (PC4 25600)
  • CAS LatencyCL22
  • Voltage1.2V
  • ECCYes

Capacity 128GB

  • 128GB capacity expands server memory headroom
  • DDR4 3200 speed with CL22 latency supports demanding workloads
  • ECC load-reduced design protects data integrity in HP Apollo 4200 Gen10 Plus
  • Single 288-pin 1.2V module simplifies high-density upgrades
  • Backward compatible with 2133, 2400, 2666 and 2933MHz systems

Single-module server upgrade

This 128GB DDR4 3200 CL22 4Rx4 ECC LRDIMM module is built for the HP Apollo 4200 Gen10 Plus. It targets administrators who need maximum capacity per slot in a supported server or workstation platform. The load-reduced design reduces electrical load on the memory bus for stable operation at high density. It will not work in standard desktop systems or alongside unbuffered or registered ECC DIMMs.

Thermals and power profile

The module runs at 1.2V without a heat spreader, relying on chassis airflow for cooling. Load-reduced architecture lowers per-pin current draw compared to standard registered DIMMs at this capacity. JEDEC-compliant operation at PC4-25600 keeps power consumption predictable under sustained server workloads. Backward compatibility with 2133, 2400, 2666 and 2933MHz speeds allows flexible deployment across mixed-speed configurations.

Build integration

The 288-pin DDR4 form factor fits the Apollo 4200 Gen10 Plus memory slots directly. Single-module design leaves remaining slots free for future expansion or matched-population requirements. Replaces HP part numbers P06037-B21, P06037-H21, P06037-K21, P43171-B21, P07652-B21, P07652-H21 and P25206-B21. Buyers needing unbuffered or standard registered ECC memory should choose a different module type.

Highlights

  • 128GB capacity expands server memory headroom
  • DDR4 3200 speed with CL22 latency supports demanding workloads
  • ECC load-reduced design protects data integrity in HP Apollo 4200 Gen10 Plus
  • Single 288-pin 1.2V module simplifies high-density upgrades
  • Backward compatible with 2133, 2400, 2666 and 2933MHz systems

Specifications

BrandOWC
Part Number3L2D44R4128G
Capacity128GB
Type288-Pin DDR4 ECC LRDIMM
SpeedDDR4 3200 (PC4 25600)
CAS LatencyCL22
Voltage1.2V
ECCYes
Buffered/RegisteredLoad Reduced
Rank4Rx4
Heat SpreaderNo
Compatible SystemHP Apollo 4200 Gen10 Plus

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Questions about this item

How is the 288-pin LRDIMM installed in the HP Apollo 4200 Gen10 Plus, and what step is often missed?

Align the notch on the module with the slot key, press down firmly until both side latches click shut, then verify in BIOS that the 128GB capacity and 3200MHz speed are recognised.

What maintenance or replacement will this ECC load-reduced module need over time?

No routine maintenance is required; if a correctable error count rises or the module fails, replace it with an identical 4Rx4 CL22 1.2V LRDIMM to preserve compatibility.

What limit appears first when this memory runs at sustained 3200MHz load in the server?

The thermal limit of the unbuffered PCB without a heat spreader is reached first, so ensure chassis airflow keeps the 1.2V modules within JEDEC operating temperature.

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