HPE P03051-091 16GB DDR4 2933MHz Memory

HPE P03051-091 16GB Single Rank x4 DDR4-2933 Registered Memory

P03051-091 is not an order code in the usual HPE sense. It is the assembly number found on the label of a 16GB single rank x4 DDR4-2933 registered DIMM, the module HPE sells as option kit P00920-B21 and supplies for service as spare P06187-001. Many buyers search for it simply because it is the number they can read on a module already inside their server.

The module is part of HPE’s DDR4-2933 SmartMemory family for ProLiant Gen10 servers using 2nd Generation Intel Xeon Scalable processors. A single rank x4 build at 16GB makes it a common choice for filling slots in virtualisation hosts and general application servers.

You can choose New or Refurbished stock on this page, where available. Each option shows its own condition notes and warranty once selected.

Key Features At A Glance

• 16GB registered ECC memory for HPE Gen10 platforms
• Assembly number for the P00920-B21 option kit
• Single rank with x4 DRAM organisation
• Rated at 2933 MT/s, CAS 21
• Genuine HPE SmartMemory
• Supplied New or Refurbished when in stock

Which 16GB DDR4-2933 Module Is This?

HPE made two different 16GB DDR4-2933 RDIMMs for Gen10, and it is easy to confuse them:

• Single rank x4: option P00920-B21, spare P06187-001, assembly P03051-091 (this item)
• Dual rank x8: option P00922-B21, spare P06188-001, assembly P03050-091

Both hold 16GB and run at the same rated speed, but the rank count and chip width differ. Matching the exact type you already have keeps the configuration consistent, so check the label for 1Rx4 before ordering this part.

Speed, Processors And Population

Gen10 memory speed is decided by the processor rather than the DIMM. HPE QuickSpecs show many Xeon Gold 6200 and Platinum 8200 models running memory at 2933 MT/s, most Gold 5200 models at 2666 MT/s and Silver or Bronze models at 2400 MT/s. A 2933 module works in each case at the lower speed.

Gen10 processors have six channels with two DIMM slots per channel. Use registered memory throughout, because HPE does not support mixing RDIMMs and LRDIMMs. If a channel holds modules with different ranks, HPE advises fitting the higher rank module in the white slot.

Reading The Label On Your DIMM

HPE memory labels carry a short code such as 16GB 1Rx4 PC4-2933Y-R. Reading it from left to right gives the capacity, the rank count and chip width (1R means single rank, x4 the DRAM width), the DDR4 speed grade, a timing letter that corresponds to CAS 21 on this module, and finally R for registered. The assembly number, here P03051-091, is usually printed close by along with HPE barcodes. Together these details tell you which replacement you need.

New P03051-091 Modules

Select New for unused stock. The product page shows the packaging and warranty details that apply to this choice.

Refurbished P03051-091 Modules

Refurbished stock has been used previously and costs less. The condition and warranty for this option appear on the page when you select it.

P03051-091 Technical Specifications

Gen10 Systems That Use This Module

Spares cross-references match P03051-091 to HPE ProLiant Gen10 servers running 2nd Generation Xeon Scalable processors:

• ProLiant BL460c Gen10
• ProLiant DL160 Gen10 and DL180 Gen10
• ProLiant DL360 Gen10 and DL380 Gen10
• ProLiant DL560 Gen10 and DL580 Gen10
• ProLiant ML110 Gen10 and ML350 Gen10

Related Memory And Server Parts

• Ordering by spare number? See the HPE P06187-001 16GB DDR4-2933 spare.
• If your label shows 2Rx8, you need the HPE P03050-091 16GB dual rank module instead.
• The matching dual rank spare is the HPE P06188-001 16GB DDR4-2933 module.
• Stepping up to 32GB, look at the HPE P03052-091 32GB DDR4-2933 memory.
• Replacing the board as well? We list the HPE P19928-001 DL380 Gen10 system board.
• More boards are in our server motherboard category.

Is This The Right Part?

• The label should show 16GB 1Rx4 PC4-2933Y-R.
• One of P03051-091, P06187-001 or P00920-B21 should appear on the label or parts list.
• Your server should be a Gen10 ProLiant with 2nd Gen Xeon Scalable processors.
• All other memory in the server should be RDIMMs.

Buying P03051-091 in the UK

Euroland IT Store ships to UK addresses, and delivery choices are shown at checkout. Not sure which 16GB module you have? Send us the server model, its serial number and a photo or transcript of the DIMM label, and we will help you match it.

Frequently Asked Questions

Is P03051-091 the same as HPE P00920-B21?

Yes. P03051-091 is the assembly number printed on the module, and P00920-B21 is the option kit number for the same 16GB single rank x4 DDR4-2933 RDIMM.

How is P03051-091 different from P03050-091?

Both are 16GB DDR4-2933 RDIMMs. P03051-091 is single rank x4, while P03050-091 is dual rank x8 and belongs to option P00922-B21.

Will a Xeon Silver processor run this module at 2933?

No. HPE QuickSpecs show Xeon Silver and Bronze processors running memory at 2400 MT/s. The module still works at that speed.

Which warranty applies to New and Refurbished P03051-091?

Each condition has its own terms, shown on the product page when you choose New or Refurbished.

Is UK delivery available for this memory?

Yes. We deliver within the UK and you will see the shipping options at checkout.