HPE P48499-001 PC5-38400 DDR5 ECC Memory

HPE P48499-001 is the service spare for a 16GB single-rank x8 DDR5-4800 Registered SmartMemory module in the PC5-38400 family. HPE maps it to option P43322-B21 and assembly P43324-0A1. This page focuses on service replacement, where maintaining the intended memory family and population is more useful than treating the DIMM as generic 16GB DDR5.

Service Memory Identity

Why the Spare Number Matters

If diagnostics isolate a failed DIMM and maintenance documentation calls for P48499-001, the spare provides a precise replacement identity. This is more reliable than selecting another 16GB DDR5 module based only on capacity.

Memory Population Can Affect Speed

HPE documents 4800 MT/s for relevant 4800 memory SKUs at one DIMM per channel and 4400 MT/s at two DIMMs per channel. Effective speed therefore depends on the supported server, processor and population.

4800 and 5600 Are Different Families

HPE’s Gen11 guidance states that mixing 4800 and 5600 memory is not allowed in the documented platform context. The P64705-B21 16GB DDR5-5600 kit has the same capacity but is not simply another speed setting for this spare.

Assembly-Level Identification

P43324-0A1 may be the number visible on the physical DIMM. Recording both assembly and spare helps reconcile installed hardware with maintenance and purchasing records.

Keep Slot Information after Replacement

Recording the DIMM slot, processor association and spare number after service gives future technicians more useful information than total installed RAM alone, especially in dual-processor servers with many memory channels.

New and Refurbished P48499-001

New modules can support planned service stock and replacements. Refurbished modules can be practical for compatible Gen11 systems already using DDR5-4800. The same population rules apply regardless of condition.

Related Server Components

See P43324-0A1, P64705-B21, P58543-001 MR408i-o, P26987-001 adapter and P49751-001 SAS SSD.

Source P48499-001 for Service Work

Euroland IT Store can help source New or Refurbished HPE SmartMemory where available.

Why Like-Family Replacement Simplifies Support

Maintaining the same capacity, rank, organisation and speed family can keep a repaired server close to its known memory configuration. This can simplify later diagnostics and reduce accidental changes to channel population during an urgent repair.

16GB Modules Can Suit Modest Gen11 Workloads

A 16GB DIMM can be useful in entry configurations, infrastructure services, development systems and other workloads that do not require very high memory density. It can also provide a straightforward like-for-like service replacement where the existing server was designed around this capacity. For systems expected to grow significantly, larger DIMMs may preserve slots, so capacity planning should consider future requirements as well as the immediate repair.

Why ECC Registered Memory Matters

Registered ECC memory is designed for enterprise server platforms where capacity, reliability and controlled memory population are important. HPE SmartMemory adds platform qualification to the underlying DDR5 specification. Using the documented spare therefore keeps the replacement tied to the HPE server family instead of relying on a generic 288-pin DDR5 module that happens to share capacity and speed.

Do Not Base a Replacement on Capacity Alone

Two 16GB DDR5 modules can differ in speed, rank, organisation and platform qualification. P48499-001 captures the HPE service identity for this specific DDR5-4800 single-rank x8 family. That makes it more useful than a generic 16GB search when a production server needs a predictable repair.

Inventory Planning for Repeated Server Configurations

If several compatible servers use this DIMM family, keeping the spare and assembly cross-reference in the inventory can shorten future repairs. It also prevents the same memory from being counted twice under two HPE numbers.

Memory Service Should Preserve Channel Planning

A DIMM replacement is not only about restoring the total gigabyte count. The location of the module within processor-owned memory channels can affect the supported population and operating speed. Keeping the same documented family helps technicians repair the fault without unintentionally changing the memory strategy used by the server.

This approach is particularly useful when several servers share the same memory specification and are maintained from a common spare pool.

This supports clearer long-term asset management.

P48499-001 FAQs

What is P48499-001?

The service spare for a 16GB single-rank x8 DDR5-4800 Registered HPE SmartMemory module.

Which option is related?

P43322-B21.

Which assembly is related?

P43324-0A1.

What does PC5-38400 mean?

It is the bandwidth class associated with DDR5-4800.

Can 4800 and 5600 be mixed?

HPE’s documented Gen11 guidance says no.

Is it ECC registered memory?

Yes.