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Two green DDR5 ECC registered DIMMs, no heat spreader

OWC

OWC 64GB DDR5 4800 ECC RDIMM Kit for HP ProLiant Gen11

SKU CH-PX2X-WB763

64 GB DDR5 4800 ECC registered RDIMM kit with two 32 GB modules for HP ProLiant Gen11 servers

  • Total capacity64 GB (2 × 32 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • CAS latencyCL40
  • Rated voltage1.1 V
  • Buffer typeRegistered
  • Memory rank2Rx8

Capacity 64GB (2 x 32GB)

  • 64 GB capacity with two 32 GB modules for expanded server memory
  • DDR5 4800 speed rated at PC5-38400 CL40 for high bandwidth
  • ECC registered design detects and corrects data errors in critical workloads
  • 1 V low-voltage operation reduces power draw in dense configurations
  • Validated for HP ProLiant DL325 DL345 DL360 DL365 DL380 Gen11 systems

Purpose-built server memory

This 64 GB kit delivers two 32 GB DDR5 4800 CL40 ECC registered DIMMs at 1.1 V, designed specifically for HP ProLiant Gen11 servers including the DL325, DL345, DL360, DL365 and DL380 models. It targets administrators who need JEDEC-compliant registered memory with error correction for production workloads.

Thermals and power in daily use

Operating at the standard 1.1 V DDR5 voltage, the modules run without heat spreaders and draw minimal power during typical server duties. Registered buffering reduces electrical load on the memory controller, helping keep system thermals stable and fan noise low in rack environments.

Behaviour under sustained load

ECC detection and correction maintain data integrity during continuous operation, while the 2Rx8 organisation supports consistent throughput across all populated channels. The kit is validated for full-time deployment in the listed Gen11 platforms and cannot be mixed with unbuffered or load-reduced DIMMs.

How it compares

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

Price $1,723.99
Pricier than about 66% of the 21,161 comparable items (median $397.99).
Total capacity 64 GB (2 × 32 GB)
Higher than about 60% of the 20,941 comparable items (median 32 GB).
Price per GB $26.94 per GB
Pricier than about 75% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameOWC
Part number4R8D52R8064P
Total capacity64 GB (2 × 32 GB)
Product type288-Pin DDR5 ECC RDIMM
Performance
Rated speedDDR5 4800 (PC5 38400)
Memory
CAS latencyCL40
ECC supportYes
Buffer typeRegistered
Memory rank2Rx8
Heat spreaderNo
Power
Rated voltage1.1 V
Compatibility
Compatible systemsHP ProLiant DL325 Gen11
HP ProLiant DL345 Gen11
HP ProLiant DL360 Gen11
HP ProLiant DL365 Gen11
HP ProLiant DL380 Gen11

Other versions of this model

5 more in the same range

Questions about this item

How do I install the 288-pin DDR5 ECC RDIMM modules in my HP ProLiant DL360 Gen11, and what step is often missed?

Power down the server, open the chassis, align each module's notch with the slot key, press firmly until the ejector tabs click, then verify in BIOS that both 32GB modules show at 4800 MT/s — skipping the BIOS check is the step most people forget.

What maintenance or replacement will the 64GB DDR5 4800 ECC RDIMM kit need over its service life?

No scheduled maintenance is required; the modules have no heat spreaders or moving parts, so replacement only occurs if a DIMM fails ECC correction or the server is upgraded beyond the 64GB capacity.

What limit appears first when the 2Rx8 1.1V registered DIMMs run sustained workloads in a DL380 Gen11?

The memory controller's maximum supported speed of 4800 MT/s is the first ceiling; sustained loads cannot push the kit beyond its JEDEC-rated 4800 MT/s CL40 specification.

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