HPE 862690-091 16GB DDR4-2400 Memory

HPE 862690-091 16GB DDR4-2400 ECC Unbuffered Memory

If you have opened a MicroServer Gen10 or ProLiant ML30 Gen9 and found 862690-091 on the DIMM sticker, you are looking at the assembly number of a 16GB dual rank DDR4-2400 unbuffered ECC module (UDIMM). It is the module supplied in HPE option kit 862976-B21, with spare part number 869538-001.

Entry level HPE servers such as these use unbuffered memory instead of the registered DIMMs found in larger ProLiant models. That makes the type of DIMM just as important as its size and speed when you are choosing a replacement.

The 862690-091 is available from Euroland IT Store in New and Refurbished condition, when in stock.

Key Features At A Glance

• 16GB unbuffered DDR4 module with ECC
• Assembly number used in HPE kit 862976-B21
• Rated at DDR4-2400
• Suits compact and small business HPE servers
• Two 16GB modules reach the MicroServer Gen10 maximum of 32GB
• New or Refurbished choice, subject to stock

Decoding the Label

The module label typically shows the assembly number 862690-091 together with the marking 16GB 2Rx8 PC4-2400T-E. Here is what each part means:

• 2Rx8: dual rank, built from x8 DRAM chips.
• PC4-2400T: DDR4 rated at 2400 MT/s.
• E: unbuffered with ECC. Registered modules end in R and load reduced modules end in L.

The option kit 862976-B21, the spare 869538-001 and this assembly number all describe the same module, so any of the three can be matched against your server’s records.

MicroServer Gen10 Memory Notes

According to HPE QuickSpecs, the ProLiant MicroServer Gen10 has two DIMM slots and takes DDR4 unbuffered ECC memory, up to 32GB using two 16GB modules. The processor sets the working speed: with the AMD Opteron X3216 the memory runs at up to 1600 MT/s, while the X3421 and X3418 allow up to 2400 MT/s.

So a 2400 rated module will still work in an X3216 system, simply at the lower speed. HPE also notes that memory from earlier server generations is not fully compatible with this server, so stick with Gen10 qualified modules.

The MicroServer Gen10 is often used as a small office file server, backup target or home lab host. In those roles ECC memory is a sensible safeguard, because it detects and corrects single bit errors before they can corrupt files or crash a virtual machine. Moving from the standard 8GB to 32GB also gives more headroom for caching and for running a few virtual machines side by side.

Fitting It to an ML30 Gen9

The ML30 Gen9 tower also uses this module. It has four slots across two channels and reaches 64GB with four 16GB UDIMMs. Registered and load reduced DIMMs are not supported in it.

New HPE 862690-091

New stock is unused. Select this option to view the current price and the warranty on offer.

Refurbished HPE 862690-091

A Refurbished module has been used previously and is priced below New. The condition and warranty information appears when you choose the option, so please check it before buying.

862690-091 Technical Specifications

Compatible HPE Servers

• HPE ProLiant MicroServer Gen10 (two slots, 32GB maximum)
• HPE ProLiant ML30 Gen9 (four slots, 64GB maximum)

One spares reference also lists the ProLiant DL20 Gen9. Please contact us to confirm before ordering for that model. For ML30 Gen9 cooling upgrades, see the HPE 820290-B21 ML30 Gen9 front PCI fan kit.

Related Parts

• HPE 862976-B21 16GB DDR4-2400 option kit
• HPE 869538-001 16GB DDR4-2400 spare part
• HPE 819411-001 16GB DDR4-2400 registered memory, for larger Gen9 servers rather than the MicroServer or ML30
• Server memory kits

Before You Order

• Check the existing label for 862690-091 or the 16GB 2Rx8 PC4-2400T-E marking.
• Make sure the marking ends in E, not R or L.
• Confirm the server is a MicroServer Gen10 or ML30 Gen9.
• Note the processor model, as it decides the final memory speed.

Buying HPE 862690-091 in the UK

Euroland IT Store supplies memory and spares for HPE servers to small businesses, IT support firms and resellers across the UK. UK delivery is available, with the options and costs displayed at checkout.

Unsure which module you have? Send us the server model and serial number, along with the full text from a fitted DIMM label, and we will help you match it.

Frequently Asked Questions

Is the 862690-091 registered or unbuffered memory?

It is unbuffered ECC memory (UDIMM), shown by the E at the end of the 16GB 2Rx8 PC4-2400T-E marking. It is not a registered DIMM.

How much memory can a MicroServer Gen10 take with this module?

The MicroServer Gen10 has two DIMM slots, so two 862690-091 modules give the 32GB maximum listed in HPE QuickSpecs.

Why is my MicroServer Gen10 running the memory at 1600 MT/s?

Servers with the AMD Opteron X3216 processor run memory at up to 1600 MT/s. The X3421 and X3418 processors support up to 2400 MT/s.

What separates the New and Refurbished options?

New is unused stock and Refurbished has been used before at a lower price. Condition and warranty for each are shown when you select it on the product page.

Do you deliver this module across the UK?

Yes. UK delivery is available, and the delivery options and costs are shown at checkout.