HPE P11040-B21 128GB DDR4-2933 Server Memory Kit

HPE P11040-B21 128GB Quad Rank x4 DDR4-2933 Load Reduced Smart Memory Kit

For ProLiant Gen10 servers that need the most memory per slot, the HPE P11040-B21 provides 128GB on a single load reduced DIMM (LRDIMM). It is the HPE option kit number for a 128GB Quad Rank x4 DDR4-2933 Load Reduced Smart Memory Kit, part of the DDR4-2933 range that HPE introduced for Gen10 servers running 2nd Gen Intel Xeon Scalable processors.

Load reduced modules use a buffer on the DIMM to cut the electrical load on the memory bus. That is what allows four ranks and 128GB to sit on one stick, and it is why this kit belongs in large memory builds such as virtualisation hosts and in-memory databases rather than in a mixed RDIMM server.

You can order P11040-B21 from Euroland IT Store as New or Refurbished, subject to stock. The condition and warranty for each choice appear once you select it.

Key Features At A Glance

• 128GB on one module for high density Gen10 builds
• Load reduced design for high capacity configurations
• Quad rank with x4 DRAM organisation and ECC protection
• Rated at 2933 MT/s for Gen10 with 2nd Gen Xeon Scalable CPUs
• HPE Smart Memory for firmware recognition and monitoring
• Offered New or Refurbished, depending on availability

Where P11040-B21 Sits in HPE Numbering

The -B21 suffix marks an HPE option kit, the number used for ordering and in QuickSpecs. When HPE supplies the same 128GB LRDIMM as a field replacement it uses the spare number P16001-001, and the module label commonly carries the assembly number P11057-0A1. Spares databases link these three numbers to one product, so a server that shows P16001-001 or P11057-0A1 on an installed DIMM can take P11040-B21 as a like for like match.

Be careful with lookalike numbers. HPE also sold a 128GB octal rank 3DS LRDIMM, P00928-B21, at the same speed. It has the same capacity but a different internal design, and HPE does not allow 3DS and non 3DS modules to be mixed.

Processor Generation and Speed

HPE lists the DDR4-2933 Smart Memory kits for ProLiant Gen10 servers fitted with 2nd Gen Intel Xeon Scalable processors. Servers with first generation Xeon Scalable processors use the DDR4-2666 kits, and the two families should not be mixed in one server. Even on a supported processor, the speed the memory actually runs at depends on the CPU model and how many DIMMs share each channel, as HPE notes in its server documentation.

LRDIMM Population Rules

A server running P11040-B21 should use LRDIMMs only. HPE does not support mixing load reduced and registered DIMMs, so if the server already holds RDIMMs such as the 64GB P00930-B21, all of them would need to be replaced to move to 128GB modules. Fill channels evenly on each processor for balanced performance. A fully populated two socket DL360 or DL380 Gen10 with 24 of these modules reaches 3TB.

New HPE P11040-B21 Memory Kit

The New option is an unused module, ideal when building out a server from scratch or meeting a requirement for new stock. The warranty that applies is shown once New is selected.

Refurbished HPE P11040-B21 Memory Kit

Refurbished is a previously used genuine HPE LRDIMM. It is a practical way to reach high memory totals in existing Gen10 servers for less. Select Refurbished to see its warranty and condition details.

HPE P11040-B21 Technical Specifications

Supported Servers

Spares references confirm P11040-B21 for these models:

• HPE ProLiant DL360 Gen10
• HPE ProLiant DL380 Gen10

Other Gen10 servers that use the DDR4-2933 range may also list this kit. Send us your model and processor details and we will check it against the HPE QuickSpecs.

Related Parts

• P16001-001 128GB DDR4-2933 spare LRDIMM
• P11057-0A1 128GB module by assembly number
• P00928-B21 128GB 3DS LRDIMM (octal rank)
• P00926-B21 64GB DDR4-2933 memory
• HPE ProLiant DL380 Gen10 2U rack server
• HPE ProLiant DL360 Gen10 1U rack server
• More HPE server parts

Checking Before You Order

• Find P11040-B21, P16001-001 or P11057-0A1 on a fitted module or in your records.
• Confirm the label reads 128GB, 4Rx4 and PC4-2933Y-L, where L means load reduced.
• Check the server has 2nd Gen Xeon Scalable processors.
• Make sure no RDIMMs or 3DS LRDIMMs remain installed.

Buying HPE P11040-B21 in the UK

Euroland IT Store supplies this LRDIMM to UK customers, with delivery choices shown at checkout. For a compatibility check, tell us the server model, serial number, processor and the details printed on one of your current DIMMs.

Frequently Asked Questions

Is P11040-B21 a registered or load reduced DIMM?

It is a load reduced DIMM (LRDIMM). That matters because HPE servers cannot run LRDIMMs and registered DIMMs together.

Will P11040-B21 work with first generation Xeon Scalable processors?

HPE lists the DDR4-2933 kits for Gen10 servers with 2nd Gen Xeon Scalable processors. First generation systems use the DDR4-2666 range, so please check with us before ordering for an older processor.

Which numbers can replace P11040-B21?

The HPE spare P16001-001 and the assembly numbered module P11057-0A1 are the same 128GB Quad Rank x4 LRDIMM. P00928-B21 is a different 3DS design and should not be mixed with it.

What does the Refurbished option include?

It is a previously used genuine HPE module. Its condition and warranty are shown on this page when you choose Refurbished.

Can I get P11040-B21 delivered in the UK?

Yes. We ship within the UK and you can see the delivery options at checkout.