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

OWC

OWC 16GB DDR5 4800 CL40 1Rx8 ECC Registered RDIMM memory upgrade

SKU CH-DXDT-7DTT2

16 GB DDR5 ECC registered RDIMM at 4800 MT/s for Lenovo ThinkSystem SD650 V3, SD650-I V3, SD665 V3, SD665-N V3 and SR630 V3 servers

  • Capacity16GB
  • Type288-Pin DDR5 ECC RDIMM
  • SpeedDDR5 4800 (PC5 38400)
  • CAS LatencyCL40
  • Voltage1.1V
  • ECCYes

Capacity 16GB

  • 16 GB DDR5 4800 CL40 ECC registered RDIMM for ThinkSystem servers
  • Single-rank 1Rx8 module at 1.1 V reduces electrical load per channel
  • 288-pin PC5-38400 form factor fits SD650 V3 SD650-I V3 SD665 V3 SD665-N V3 SR630 V3
  • Replaces Lenovo part numbers 4X71L72498 4X77A77029 4X77A81437 for direct swap
  • JEDEC and RoHS compliant with lifetime warranty and free tech support

16GB DDR5 ECC RDIMM for Lenovo ThinkSystem

This 16GB DDR5 4800 CL40 module is a registered ECC RDIMM built for Lenovo ThinkSystem servers. It suits administrators upgrading SD650 V3, SD650-I V3, SD665 V3, SD665-N V3 or SR630 V3 platforms. The single-rank 1Rx8 design runs at 1.1V without a heat spreader.

Replaces Lenovo 4X71L72498, 4X77A77029, 4X77A81437

The module directly replaces Lenovo part numbers 4X71L72498, 4X77A77029 and 4X77A81437. The jump is worth it when your chassis needs registered ECC memory at DDR5 4800 speed and you cannot use unbuffered or load-reduced DIMMs. Mixing registered with other ECC types is not supported.

Verify registered ECC requirement and slot count

Confirm your ThinkSystem model requires registered ECC RDIMMs before ordering. Check how many 288-pin slots are free and whether the memory configuration rules allow a single 16GB 1Rx8 module. This product will not work in standard desktops or systems needing unbuffered memory.

Privalumai

  • 16 GB DDR5 4800 CL40 ECC registered RDIMM for ThinkSystem servers
  • Single-rank 1Rx8 module at 1.1 V reduces electrical load per channel
  • 288-pin PC5-38400 form factor fits SD650 V3 SD650-I V3 SD665 V3 SD665-N V3 SR630 V3
  • Replaces Lenovo part numbers 4X71L72498 4X77A77029 4X77A81437 for direct swap
  • JEDEC and RoHS compliant with lifetime warranty and free tech support

Specifikacijos

BrandOWC
Part Number4R8D51R816GB
Capacity16GB
Type288-Pin DDR5 ECC RDIMM
SpeedDDR5 4800 (PC5 38400)
CAS LatencyCL40
Voltage1.1V
ECCYes
Buffered/RegisteredRegistered
Rank1Rx8
Heat SpreaderNo
Compatible SystemLenovo ThinkSystem SD650 V3
Lenovo ThinkSystem SD650-I V3
Lenovo ThinkSystem SD665 V3
Lenovo ThinkSystem SD665-N V3
Lenovo ThinkSystem SR630 V3

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Does the 288-pin DDR5 RDIMM fit the ThinkSystem SR630 V3 memory slots?

Yes, the module uses the standard 288-pin DDR5 RDIMM form factor required by the ThinkSystem SR630 V3 and the other listed SD650 V3, SD650-I V3, SD665 V3 and SD665-N V3 servers.

What BIOS setting or population rule is commonly missed when installing this 1Rx8 ECC registered module?

The module must not be mixed with unbuffered or load-reduced DIMMs; all slots in a channel should use identical registered ECC parts and the server BIOS must be set to registered mode.

When will the 1.1 V DDR5 4800 CL40 RDIMM typically need replacement in a ThinkSystem SD650 V3?

DDR5 RDIMMs have no scheduled replacement interval; they are replaced only if a memory test reports correctable or uncorrectable ECC errors or if a capacity upgrade is required.

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