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Green 288-pin DDR4 DIMM with black chips and gold contacts

Axiom

Axiom P28225-B21-AX 32GB DDR4 2933 ECC Registered CL21 1.20V memory upgrade

SKU CH-C7BP-KZ8V1 MPN P28225-B21-AX

32GB DDR4 2933 ECC registered memory with CL21 latency at 1.20V for HP systems

  • Total capacity32 GB
  • Rated speedDDR4 2933 (PC4 23466)
  • CAS latencyCL21
  • Rated voltage1.2 V
  • Buffer typeRegistered
  • Product type288-Pin DDR4 SDRAM
  • 32GB capacity supports large workloads in HP systems
  • DDR4 2933 speed delivers 23466 MT/s data rate
  • ECC Registered design detects and corrects memory errors
  • CL21 latency at 1.20V balances timing and power
  • 288-pin DDR4 module installs in compatible HP platforms

Axiom 32GB DDR4 2933 Registered ECC Module

This Axiom module delivers 32GB of DDR4 2933 memory with ECC and registered buffering. It operates at 1.20V with a CAS latency of CL21 and uses the standard 288-pin form factor. The part is validated for HP systems.

Suited for HP server upgrades needing registered

Buyers who need unbuffered non-ECC memory for a desktop board should look elsewhere. Systems that cannot accept registered modules or that require a different voltage will not be compatible. Workstations limited to lower capacities per slot should also consider other options.

Verify your HP model supports 32GB registered DDR4

Check the system documentation for maximum capacity per slot and total population rules. Confirm the motherboard accepts 1.20V registered ECC modules at this speed. Ensure the BIOS revision in use recognises the density and timing of this part.

How it compares

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

Price $900.99
Pricier than about 60% of the 21,161 comparable items (median $397.99).
Total capacity 32 GB
Typical for this category: the median of 20,941 items is 32 GB.
Price per GB $28.16 per GB
Pricier than about 79% of the 20,941 comparable items (median $8.19 per GB).

New to this? Buying memory and SSDs with crypto — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameAxiom
Model nameP28225-B21-AX
Total capacity32 GB
Product type288-Pin DDR4 SDRAM
Performance
Rated speedDDR4 2933 (PC4 23466)
Memory
CAS latencyCL21
ECC supportYes
Buffer typeRegistered
Power
Rated voltage1.2 V
Compatibility
Compatible systemsHP

Questions about this item

Does this 288-pin DDR4 2933 registered ECC module require an HP server that supports registered memory?

Yes, the module is registered and ECC, so the HP system must support registered DDR4 memory for it to function.

Can I add this CL21 1.20V stick to an HP server that already has DDR4 2933 registered ECC memory installed?

It will work alongside existing DDR4 2933 registered ECC modules; the system will run at the lowest common speed and latency.

How can I confirm the 32GB module is recognised at DDR4 2933 with ECC active after installation?

Check the BIOS memory information or OS tools — they should show 32GB, 2933 MT/s, and ECC enabled for this slot.

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