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Four green DDR5 RDIMM modules in anti-static tray

OWC

OWC 256GB (4x64GB) DDR5 4800 CL40 2Rx4 288-pin 1.1V ECC RDIMM Kit for ThinkStation P7 PX

SKU CH-9P0Z-XD982

256 GB DDR5 ECC registered RDIMM kit adds 4800 MT/s capacity to ThinkStation P7 and PX workstations

  • Capacity256GB (4 x 64GB)
  • Type288-Pin DDR5 ECC RDIMM
  • SpeedDDR5 4800 (PC5 38400)
  • CAS LatencyCL40
  • Voltage1.1V
  • ECCYes

Capacity 256GB (4 x 64GB)

  • 256GB total capacity with four 64GB modules
  • DDR5 4800 speed rated at PC5-38400 CL40
  • ECC registered design for workstation data integrity
  • 1V operation meets JEDEC standard specifications
  • Validated for ThinkStation P7 and PX systems

256 GB DDR5 ECC RDIMM Kit for ThinkStation P7 PX

This kit provides 256 GB of DDR5 4800 memory in four 64 GB registered ECC modules. It is built for Lenovo ThinkStation P7 and PX workstations that require registered DIMMs. The modules operate at 1.1 V with CL40 latency and a 2Rx4 rank configuration.

Suited for registered ECC workstations not

This memory fits workstations and servers that demand registered ECC DDR5. It will not work in standard desktop computers that use unbuffered non-ECC modules. It also cannot be mixed with unbuffered or load-reduced ECC memory. Buyers needing unbuffered consumer RAM should choose a different product.

288-pin registered ECC DDR5 at 4800 MT/s

The decisive specification is the 288-pin registered ECC DDR5 4800 form factor. Only systems that accept registered ECC RDIMMs at this speed and pin count can use this kit. Verify the motherboard memory list before purchase.

Highlights

  • 256GB total capacity with four 64GB modules
  • DDR5 4800 speed rated at PC5-38400 CL40
  • ECC registered design for workstation data integrity
  • 1V operation meets JEDEC standard specifications
  • Validated for ThinkStation P7 and PX systems

Specifications

BrandOWC
Part Number4R8D52R4256S
Capacity256GB (4 x 64GB)
Type288-Pin DDR5 ECC RDIMM
SpeedDDR5 4800 (PC5 38400)
CAS LatencyCL40
Voltage1.1V
ECCYes
Buffered/RegisteredRegistered
Rank2Rx4
Heat SpreaderNo
Compatible SystemLenovo ThinkStation P7
Lenovo ThinkStation PX

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Questions about this item

Does this 256GB kit of four 64GB DDR5 4800 CL40 RDIMMs require a Lenovo ThinkStation P7 or PX workstation to operate?

Yes, the kit is validated for Lenovo ThinkStation P7 and PX systems that accept DDR5 4800 ECC registered RDIMMs; other platforms are not supported.

Can I mix these registered ECC DDR5 modules with any unbuffered or load-reduced memory already installed in the ThinkStation?

No, the modules are registered ECC and must not be mixed with unbuffered or load-reduced memory; all slots should use matching registered ECC RDIMMs.

After installation, how can I confirm the four 64GB sticks are running at DDR5 4800 CL40 with ECC active?

Check the system BIOS or UEFI memory information screen; it should report 256GB total, DDR5 4800 speed, CL40 timings, 1.1V voltage, and ECC registered status.

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