HPE 862976-B21 16GB DDR4-2400 Memory

HPE 862976-B21 16GB DDR4-2400 Standard Memory Kit

HPE 862976-B21 is the option kit number for a 16GB dual rank DDR4-2400 unbuffered ECC memory module, sold by HPE as a Standard Memory kit for its entry level servers. The main homes for it are the ProLiant ML30 Gen9 tower and the ProLiant MicroServer Gen10.

Option numbers ending in -B21 are the ones you will see on HPE price lists and configuration tools, so this is usually the number to quote when planning an upgrade. The spare part number for the same module is 869538-001, and the DIMM itself carries assembly number 862690-091.

New and Refurbished versions are both offered by Euroland IT Store, subject to stock.

Key Features At A Glance

• HPE option kit for one 16GB DDR4 UDIMM
• Unbuffered ECC memory for small business servers
• Up to 2400 MT/s with a supported processor
• Takes an ML30 Gen9 to its 64GB maximum with four kits
• Listed by HPE for the ML30 Gen9 memory configuration
• Available New or Refurbished, depending on stock

Upgrading an ML30 Gen9 With 862976-B21

HPE’s QuickSpecs for the ProLiant ML30 Gen9 list 862976-B21 among the supported memory kits. The server has four DIMM slots arranged as two channels with two slots each, and it accepts unbuffered ECC UDIMMs only. Registered, load reduced and non-ECC modules are not supported.

Memory speed follows the processor. With Xeon E3-1200 v5 family processors the memory runs at 2133 MT/s, while E3-1200 v6 family processors allow 2400 MT/s. HPE notes that speed may also fall to 2133 depending on the DIMM configuration.

When mixing modules, HPE advises filling slots from the heaviest load to the lightest, so dual rank 16GB modules such as this one go in before any single rank 8GB modules. Follow the slot order A, B, C, D shown in the server documentation.

HPE also states that only HPE qualified DIMMs should be used in the ML30 Gen9, and that memory taken from previous generation HPE servers is not qualified or warranted for it. That is worth remembering if you have older modules on the shelf, since they may fit physically without being supported.

Other ML30 Gen9 Memory Kits Compared

The same QuickSpecs list several kits, which can cause confusion when buying:

• 862976-B21: 16GB dual rank DDR4-2400. This kit.
• 862974-B21: 8GB single rank DDR4-2400.
• 805671-B21: 16GB dual rank DDR4-2133, the earlier kit.
• 819880-B21: 8GB single rank DDR4-2133.

If you are buying today and have a v6 processor, the 2400 rated kits let the memory run at its highest supported speed.

New 862976-B21 Kit

Choose New for an unused module. You will see the price and warranty for this condition once the option is selected.

Refurbished 862976-B21 Kit

Refurbished modules have been used before and cost less. Selecting this option displays its condition and warranty, so you can decide which suits your project.

862976-B21 Technical Specifications

Which Servers Use This Kit?

• HPE ProLiant ML30 Gen9: four slots, up to 64GB with 16GB UDIMMs
• HPE ProLiant MicroServer Gen10: two slots, up to 32GB, with the speed set by the AMD Opteron processor fitted

Some spares sources also list the ProLiant DL20 Gen9. We have not confirmed this from HPE documents, so please contact us first if you are upgrading a DL20 Gen9. For ML30 Gen9 maintenance, the HPE 820290-B21 ML30 Gen9 front PCI fan kit is also in our range.

Related Memory

• HPE 869538-001 16GB DDR4-2400 spare, the service number for this kit
• HPE 862690-091 16GB DDR4-2400 module, the assembly number on the DIMM
• HPE 819411-001 16GB DDR4-2400 registered DIMM, which is not suitable for the ML30 Gen9
• View all server memory kits

Checks Before Buying

• Confirm your server is an ML30 Gen9 or MicroServer Gen10.
• Check the existing modules are unbuffered ECC (marking ending in E).
• Note the processor, as it decides whether memory runs at 2133 or 2400.
• Count the free slots against the server’s maximum capacity.

Buying HPE 862976-B21 in the UK

Euroland IT Store helps small businesses, schools, IT support providers and resellers across the UK keep their HPE servers running. UK delivery is available, and the options and costs appear at checkout.

Let us know your server model and serial number, plus the details on any memory already installed, and we will confirm the kit suits your system.

Frequently Asked Questions

Is 862976-B21 supported in the ProLiant ML30 Gen9?

Yes. HPE QuickSpecs for the ML30 Gen9 list 862976-B21 as a supported 16GB DDR4-2400 unbuffered memory kit.

How many 862976-B21 kits can an ML30 Gen9 take?

Up to four, one in each DIMM slot, for a total of 64GB, which is the maximum memory for that server.

Will my ML30 Gen9 with an E3-1200 v5 processor run this memory at 2400?

No. Servers with E3-1200 v5 family processors run memory at 2133 MT/s. The full 2400 MT/s needs an E3-1200 v6 family processor.

What condition and warranty does each option have?

The condition and warranty for the New and Refurbished options are shown when you select them on this page, so you can compare before ordering.

Can the 862976-B21 be delivered in the UK?

Yes, we deliver throughout the UK. Delivery options and costs are listed at checkout.