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Green PCB DIMM module with black heat spreader and gold edge connectors

HPE

HPE P00922-B21 16GB DDR4 2933 Registered memory upgrade

SKU CH-0RHR-7M56X MPN P00922-B21

16 GB DDR4 2933 registered DIMM with CL21 timing for HPE Gen10 Intel servers

  • Total capacity16 GB
  • Rated speedDDR4 2933 (PC4 23400)
  • CAS latencyCL21
  • Memory timings21-21-21
  • Buffer typeRegistered
  • Memory rank2Rx8
  • 16 GB DDR4 2933 MHz boosts server throughput
  • Registered signal processing improves data integrity
  • CL21 CAS latency supports responsive operation
  • 288-pin DIMM fits HPE Gen10 Intel servers
  • Single 16 GB module simplifies capacity upgrades

Server Memory Upgrade

This HPE P00922-B21 module adds 16GB of DDR4 capacity to compatible Gen10 Intel servers. It operates at 2933 MHz with a registered signal design for stable operation in multi-module configurations. The single DIMM uses a 288-pin form factor and runs at 1.20 V.

Sustained Workload Behaviour

Registered buffering reduces electrical load on the memory controller, helping maintain data integrity during continuous server tasks. CL21 timing with 21-21-21 cycles delivers consistent latency across extended periods. The 2Rx8 organisation supports efficient bandwidth utilisation under heavy multi-threaded demand.

Registered DDR4 Requirement

This module requires a platform that accepts registered DDR4 DIMMs and cannot be used in systems limited to unbuffered memory. Buyers whose servers need unbuffered modules or a different DDR generation must select an alternative part. Compatibility is validated for HPE Gen10 Intel Servers.

How it compares

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

Price $458.99
Typical for this category: the median of 21,161 items is $397.99.
Total capacity 16 GB
Lower than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $28.69 per GB
Pricier than about 81% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameHPE
Model nameP00922-B21
Total capacity16 GB
Performance
Rated speedDDR4 2933 (PC4 23400)
Memory
CAS latencyCL21
Memory timings21-21-21
Buffer typeRegistered
Memory rank2Rx8
Size & build
Shipping weight0.45 kg
Package size203 × 76 × 25 mm

Questions about this item

How much power does each 16 GB DDR4 2933 registered DIMM draw at its rated 1.20 V when the server runs continuously?

Each module operates at 1.20 V; registered DDR4 DIMMs of this capacity typically draw only a few watts under load, so total power impact stays low even with multiple sticks installed.

What motherboard slot and memory-channel configuration must my HPE Gen10 server provide for this 288-pin RDIMM to function?

The module requires a standard 288-pin DDR4 DIMM slot and works in any channel population allowed by the server's memory-subsystem rules for registered memory.

Will the 2933 MT/s CL21 registered module down-clock automatically if I keep slower DDR4 RDIMMs in the same HPE Gen10 server?

Yes, the memory controller will negotiate a common speed and latency supported by all installed registered modules, so faster sticks run at the lower rate.

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