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Two green DDR4 LRDIMM modules with gold contacts no heat spreaders

OWC

OWC 256GB (2x128GB) DDR4 2933 CL21 4Rx4 ECC LRDIMM 288-pin 1.2V memory upgrade HP Synergy 480 Gen10 660 Gen10

SKU CH-DP7A-BB2NG

256 GB kit of two 128 GB DDR4 2933 CL21 ECC load-reduced DIMMs for HP Synergy 480 Gen10 and 660 Gen10 servers

  • Capacity256GB (2 x 128GB)
  • Type288-Pin DDR4 ECC LRDIMM
  • SpeedDDR4 2933 (PC4 23400)
  • CAS LatencyCL21
  • Voltage1.2V
  • ECCYes

Capacity 256GB (2 x 128GB)

  • 256 GB total capacity across two 128 GB modules
  • DDR4 2933 MT/s speed rated at PC4-23400
  • ECC load-reduced design for server and workstation reliability
  • CL21 latency at 1.2 V operating voltage
  • Qualified for HP Synergy 480 Gen10 and 660 Gen10 systems

Capacity and Compatibility

This kit delivers 256 GB of DDR4 memory as two 128 GB modules running at 2933 MT/s with CL21 latency and 1.2 V operation. It is built as ECC load-reduced LRDIMM in a 288-pin form factor and validated for HP Synergy 480 Gen10 and 660 Gen10 servers.

Target Use and Limitations

The modules suit administrators expanding memory capacity in the named Synergy platforms or replacing the listed HP part numbers. They will not work in standard desktop computers and cannot be mixed with unbuffered or registered ECC DIMMs. Buyers needing memory for consumer PCs or different server models should look elsewhere.

Sustained Load Behaviour

Under continuous workloads the ECC load-reduced design maintains signal integrity across all ranks while operating at the rated 2933 MT/s speed. Backward compatibility with 2133, 2400 and 2666 MT/s allows the kit to run stably at lower frequencies when the platform requires it.

Points forts

  • 256 GB total capacity across two 128 GB modules
  • DDR4 2933 MT/s speed rated at PC4-23400
  • ECC load-reduced design for server and workstation reliability
  • CL21 latency at 1.2 V operating voltage
  • Qualified for HP Synergy 480 Gen10 and 660 Gen10 systems

Caractéristiques

BrandOWC
Part Number2L9D44R4256P
Capacity256GB (2 x 128GB)
Type288-Pin DDR4 ECC LRDIMM
SpeedDDR4 2933 (PC4 23400)
CAS LatencyCL21
Voltage1.2V
ECCYes
Buffered/RegisteredLoad Reduced
Rank4Rx4
Heat SpreaderNo
Compatible SystemHP Synergy 480 Gen10
HP Synergy 660 Gen10

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Questions sur cet article

Does this 256GB kit require the HP Synergy 480 Gen10 or 660 Gen10 server to already support DDR4 2933 LRDIMM memory?

Yes, the server must accept 288-pin DDR4 ECC load-reduced DIMMs at 1.2V; the kit will not work in systems that only take unbuffered or registered ECC modules.

Can I keep my existing 2133MHz, 2400MHz or 2666MHz DDR4 LRDIMMs installed alongside these 2933MHz modules?

The kit is backward compatible with those speeds, but the manufacturer states it cannot be mixed with unbuffered or ECC registered memory — only additional load-reduced ECC DIMMs.

How do I confirm the 2x128GB modules are running at the rated CL21 2933MHz after installation?

Check the server BIOS or iLO interface; it should report each DIMM as 128GB DDR4 2933 PC4-23400 CL21 4Rx4 ECC load-reduced at 1.2V.

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