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Green rectangular DDR5 RDIMM with black chips and gold contacts, no heat spreader

OWC

OWC 4R8D51R816GB 16GB DDR5 4800 CL40 ECC RDIMM 1Rx8 1.1V 288-pin

SKU CH-Y1TX-W79ME

16 GB DDR5-4800 ECC registered RDIMM, CL40 1.1 V, 288-pin 1Rx8 server upgrade

  • Capacity16GB
  • Type288-Pin DDR5 ECC RDIMM
  • SpeedDDR5 4800 (PC5 38400)
  • CAS LatencyCL40
  • Voltage1.1V
  • ECCYes
  • ECC registered design protects data integrity in servers
  • 16 GB capacity expands memory for virtualised workloads
  • DDR5 4800 speed delivers PC5-38400 bandwidth
  • CL40 latency at 1.1 V balances timing and power
  • JEDEC and RoHS compliant for warranty-safe upgrades

Server ECC RDIMM Upgrade

This 16 GB DDR5 4800 CL40 registered module is built for workstations and servers that require error-correcting code memory. It will not function in standard desktop computers and cannot be mixed with unbuffered or load-reduced DIMMs. The 1Rx8 organisation and 288-pin form factor match Micron part numbers MTC10F1084S1RC48B and MTC10F1084S1RC48BR for direct replacement.

Thermals and Power

Operating at 1.1 V, the module draws minimal power and runs without a heat spreader, relying on the chassis airflow typical of rackmount and tower servers. JEDEC-standard voltage keeps thermal output low during sustained workloads. Registered buffering reduces electrical load on the memory controller, contributing to stable operation in densely populated slots.

Compatibility Gate

The single specification that decides fitment is the registered ECC RDIMM format; only platforms explicitly designed for DDR5 registered ECC memory will accept this module. Desktop consumer boards, laptops and systems requiring unbuffered or load-reduced DIMMs are incompatible. Verify your motherboard or server documentation for DDR5 RDIMM support before purchase.

Points forts

  • ECC registered design protects data integrity in servers
  • 16 GB capacity expands memory for virtualised workloads
  • DDR5 4800 speed delivers PC5-38400 bandwidth
  • CL40 latency at 1.1 V balances timing and power
  • JEDEC and RoHS compliant for warranty-safe upgrades

Caractéristiques

BrandOWC
Part Number4R8D51R816GB
Capacity16GB
Type288-Pin DDR5 ECC RDIMM
SpeedDDR5 4800 (PC5 38400)
CAS LatencyCL40
Voltage1.1V
ECCYes
Buffered/RegisteredRegistered
Rank1Rx8
Heat SpreaderNo

Questions sur cet article

How do I install this 288-pin DDR5 ECC RDIMM in my server?

Power off the server, open the chassis, align the module key notch with the slot, press firmly until both retention clips click, then verify the 16GB capacity appears in BIOS at DDR5 4800 speed.

What maintenance will this 16GB DDR5 4800 CL40 module need over time?

No routine maintenance is required; keep air pathways clear so the 1.1V registered DIMM stays cool, and replace only if ECC correctable-error counts rise or a DIMM fails POST.

What limit appears first when this 1Rx8 registered DIMM runs sustained workloads?

The CL40 latency at DDR5 4800 sets the throughput ceiling; sustained writes will hit that timing bound before thermal throttling on the unbuffered 1.1V design.

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