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Green rectangular DDR5 memory module with gold edge connectors and black heat spreader, 288-pin registered DIMM

HPE

HPE P50311-B21 32GB DDR5-4800 CL40 Registered Server RAM

SKU CH-GGHY-4JFQ2 MPN P50311-B21

32 GB DDR5-4800 registered ECC module with CL40 latency for server workloads

  • Capacity32GB
  • Type288-Pin DDR5 SDRAM
  • SpeedDDR5 4800 (PC5 38400)
  • CAS LatencyCL40
  • ECCYes
  • Buffered/RegisteredRegistered
  • 32 GB capacity scales memory-intensive workloads
  • DDR5-4800 speed delivers up to 85% more bandwidth
  • Registered ECC design protects data integrity
  • Dual-rank 288-pin module doubles density per slot
  • CL40 latency optimises response for compute-heavy tasks

HPE 32GB DDR5-4800 Registered Server Memory

This HPE P50311-B21 module provides 32GB of DDR5 SDRAM for server platforms that require registered, error-correcting memory. It operates at 4800 MHz with a CAS latency of CL40 and uses a 288-pin form factor. The dual-rank design supports higher density configurations in compatible multi-socket systems.

Thermals Noise and Power Draw

DDR5 architecture moves the voltage regulator onto the module, allowing lower operating voltage than DDR4 while delivering higher bandwidth. Registered buffering reduces electrical load on the memory controller, which helps maintain signal integrity at speed. The supplier notes an 85% increase in memory performance over the previous generation with improved reliability and reduced power per bit.

Registered ECC DDR5 for Qualified Platforms

This module is built for HPE servers that validate specific part numbers on their qualified vendor lists. Registered operation and ECC are mandatory for those platforms; unbuffered or non-ECC memory will not function. Buyers who need consumer desktop memory or non-registered modules should select a different product line.

Points forts

  • 32 GB capacity scales memory-intensive workloads
  • DDR5-4800 speed delivers up to 85% more bandwidth
  • Registered ECC design protects data integrity
  • Dual-rank 288-pin module doubles density per slot
  • CL40 latency optimises response for compute-heavy tasks

Caractéristiques

BrandHP
Part NumberP50311-B21
Capacity32GB
Type288-Pin DDR5 SDRAM
SpeedDDR5 4800 (PC5 38400)
CAS LatencyCL40
ECCYes
Buffered/RegisteredRegistered
Poids d’expédition1.00 kg
Dimensions du colis178 × 102 × 51 mm

Questions sur cet article

How do I install the 288-Pin DDR5 module and what step is often missed?

Align the single notch on the 288-Pin DDR5 module with the slot key, press firmly until both retention clips click, then verify the registered timing shows CL40 in the server BIOS.

What maintenance or replacement will this 32GB DDR5-4800 registered memory need later?

No routine maintenance is required; if a module fails, replace it with another P50311-B21 32GB DDR5-4800 CL40 registered DIMM to keep dual-rank configuration and ECC parity consistent.

What limit appears first when this dual-rank DDR5-4800 memory runs under sustained load?

The CAS latency of CL40 at 4800 MHz sets the timing boundary; sustained throughput cannot exceed the PC5-38400 data rate without violating the registered timing spec.

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