HPE 809084-091 32GB DDR4-2400MHZ Memory

HPE 809084-091 32GB DDR4-2400 LRDIMM for ProLiant Gen9 (2Rx4)

HPE 809084-091 is a 32GB DDR4-2400 load reduced memory module for ProLiant Gen9 servers. It is organised as dual rank x4, runs at PC4-19200 with CAS latency 17, carries ECC and uses 1.2V. The number is HPE’s assembly code for the module.

Load reduced memory is chosen when a Gen9 server needs to carry many DIMMs per channel at good speed. This 32GB module is a common building block in virtualisation hosts running Xeon E5-2600 v4 processors.

At Euroland IT Store you can buy the 809084-091 New or Refurbished, with both grades depending on stock.

HPE 809084-091 Technical Specifications

What Is The HPE 809084-091?

809084-091 identifies the physical module. HPE sells it as option kit 805353-B21 and supports it under spare part 819414-001. Those three numbers all describe one 32GB dual rank LRDIMM.

It is worth being exact because HPE also offered a 32GB DDR4-2400 registered DIMM in the same Gen9 range. The two share capacity, speed and even rank layout, yet one is load reduced and the other is registered. They cannot be combined in a server, so the right number avoids an awkward mismatch.

Why A Dual Rank LRDIMM?

Most people link LRDIMMs with very large quad or octal rank modules. This one is only dual rank, so why make it load reduced? The answer is population. In a server with three DIMM slots per channel, filling every slot with registered memory adds electrical load and can force a lower memory speed. The data buffer on an LRDIMM isolates that load, so the channel can stay closer to full speed with all slots used.

For a Gen9 host that needs 24 modules for capacity, this can be the difference between memory running at a reduced rate and running nearer its rating. The trade-off is a small rise in latency, which most virtualised workloads will not notice.

Remember that the whole server must use one memory type. If you already run LRDIMMs, add more LRDIMMs. If you run RDIMMs, stay with RDIMMs.

New HPE 809084-091

A New 809084-091 is the right fit for large upgrades where every module should be identical and unused. Warranty terms for new stock are on the product page.

Refurbished HPE 809084-091

Refurbished modules lower the cost of expanding Gen9 hosts or replacing a failed LRDIMM. Look at the product page for the refurbished condition and warranty details.

Compatibility

• HPE ProLiant DL360 Gen9, DL380 Gen9 and DL560 Gen9
• HPE ProLiant DL160 Gen9 and DL180 Gen9
• HPE ProLiant ML350 Gen9 and ML150 Gen9
• HPE ProLiant BL460c Gen9

Sources list this module for Gen9 servers with v4 processors. Confirm the processor model and check an existing DIMM label before you order, particularly if the server has been upgraded from v3 processors at some point.

Related HPE Part Numbers

• HPE 805353-B21 is the option kit number for this LRDIMM.
• HPE service engineers order this LRDIMM as HPE 819414-001, its spare part code.
• HPE 805351-B21 32GB DDR4-2400 kit is another 32GB DDR4-2400 listing; check whether it is registered or load reduced before choosing it.
• HPE 809083-091 32GB DDR4-2400 module and HPE 819412-001 32GB DDR4-2400 module are further 32GB listings in the same speed grade.
• HPE 809085-091 64GB DDR4-2400T memory offers double the capacity per slot, by its title.

Checklist Before Ordering

1. Locate the label on a fitted module and look for 809084-091, 805353-B21 or 819414-001.
2. Confirm the speed code ends in L for load reduced.
3. Check that the server is a Gen9 with E5-2600 v4 or E5-4600 v4 class processors as listed by HPE for your model.
4. Make sure no registered DIMMs are fitted alongside.
5. Count the modules needed to keep every channel populated the same way.

Swapping A Failed LRDIMM

When the server log reports an uncorrectable error on one slot, power down, replace the module with a matching 809084-091 and boot. HPE servers will often map out a failing DIMM automatically, so the total memory shown at boot is a quick check that the new module has been detected. If capacity is still short, reseat the module and check the slot pins for damage.

Buying HPE 809084-091 in the UK

Our team supplies businesses, IT teams, resellers and repairers nationwide. Condition, warranty, stock and delivery information for the 809084-091 are listed on its product page. We waive shipping charges on UK mainland orders over £100 + VAT. Let us know your server model and the code on your existing memory and we will confirm the right module, or call 0203 209 6002.

Frequently Asked Questions

Can I mix the 809084-091 with registered DIMMs?

No, this is a load reduced DIMM, and HPE servers do not support LRDIMMs and RDIMMs in the same system.

Which servers are compatible with the 809084-091?

It is listed for Gen9 servers with v4 processors, including the DL360, DL380, DL560, ML350 and BL460c Gen9.

New or Refurbished: which is right for my upgrade?

New fits large matched upgrades with unused parts, and Refurbished suits cost-conscious repairs or smaller additions.

What warranty do I get?

The product page shows the warranty for the condition you select.

Is delivery free in the UK?

Free UK mainland delivery applies to orders over £100 + VAT, and the product page lists delivery information.