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Green rectangular DDR5 memory module with gold edge contacts and black chips, no heat spreader

OWC

OWC 32GB DDR5 4800 PC5-38400 CL40 2Rx8 288-pin 1.1V ECC Registered RDIMM ThinkStation P5 memory upgrade

SKU CH-071X-KCA0H

Adds 32 GB of DDR5 4800 ECC registered memory to a Lenovo ThinkStation P5 workstation

  • Capacity32GB
  • Type288-Pin DDR5 ECC RDIMM
  • SpeedDDR5 4800 (PC5 38400)
  • CAS LatencyCL40
  • Voltage1.1V
  • ECCYes

Capacity 32GB

  • ECC registered design protects data integrity in workstations
  • 32 GB capacity expands multitasking headroom for demanding workloads
  • DDR5 4800 speed delivers high bandwidth for compute tasks
  • 1 V operation reduces power draw under load
  • Validated for Lenovo ThinkStation P5 compatibility

System-specific ECC RDIMM upgrade

This 32GB DDR5 4800 PC5-38400 CL40 2Rx8 288-pin 1.1V ECC Registered RDIMM is built for the Lenovo ThinkStation P5. It targets workstation and server environments that require registered memory with error correction. Standard desktop boards will not accept this module. It also cannot be mixed with unbuffered or load-reduced ECC DIMMs.

Verify registered ECC support and slot count

Before ordering, confirm the ThinkStation P5 motherboard accepts DDR5 registered ECC RDIMMs at 4800 speed and 1.1V. Check how many 288-pin slots are free and whether the BIOS recognises 2Rx8 organisation. Mixing this module with unbuffered or load-reduced memory is explicitly unsupported.

Single-module upgrade

The package contains one 32GB RDIMM that replaces Lenovo part numbers 4X71M22549, 4X77A77031 and 4X77A81440. OWC adds an advanced replacement programme and limited lifetime warranty with free technical support. No heat spreader, cables or software utilities are included.

Highlights

  • ECC registered design protects data integrity in workstations
  • 32 GB capacity expands multitasking headroom for demanding workloads
  • DDR5 4800 speed delivers high bandwidth for compute tasks
  • 1 V operation reduces power draw under load
  • Validated for Lenovo ThinkStation P5 compatibility

Specifications

BrandOWC
Part Number4R8D52R832GB
Capacity32GB
Type288-Pin DDR5 ECC RDIMM
SpeedDDR5 4800 (PC5 38400)
CAS LatencyCL40
Voltage1.1V
ECCYes
Buffered/RegisteredRegistered
Rank2Rx8
Heat SpreaderNo
Compatible SystemLenovo ThinkStation P5

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Questions about this item

Does the OWC 32GB DDR5 4800 RDIMM ship as a single module or a kit?

The upgrade consists of a single 32GB DDR5 4800 PC5-38400 CL40 2Rx8 288-pin 1.1V ECC Registered DIMM module.

Should I choose this 32GB CL40 module or a different capacity for my ThinkStation P5?

This 32GB CL40 module is the specific configuration validated for the ThinkStation P5; select it when you need a single 32GB registered ECC DIMM.

What does the PC5-38400 4800MHz rating mean once installed in the workstation?

The module runs at 4800MHz with CL40 latency at 1.1V, delivering the JEDEC-standard DDR5 bandwidth the ThinkStation P5 memory controller expects.

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