HPE ProLiant DL110 Gen12 Memory
Genuine HPE DDR5 Smart Memory for the HPE ProLiant Compute DL110 Gen12, new and refurbished, tested for compatibility before shipping. This is a small, fast memory system: four DIMM slots on four channels at one DIMM per channel, all running at 6400 MT/s behind a single Intel Xeon 6 SoC, so the buying decision is capacity per module and how many of the four slots to fill.
DL110 Gen12 Memory Specifications
- Type: HPE DDR5 Smart Memory, Registered (RDIMM), EC8; HPE states HPE DDR5 Smart Memory is required to realize the performance listed in its document
- Slots: 4 DIMM slots, 4 memory channels, 1 DIMM per channel — every populated channel runs a single module
- Speed: DDR5-6400, matching the 6400 MT/s the Xeon 6 SoC 6716P-B supports; there is no two-DIMM-per-channel step-down on this platform because no channel has a second slot
- Kits listed: 32GB dual rank x8, 64GB dual rank x4, 96GB dual rank x4 and 128GB dual rank x4, all DDR5-6400 CAS-52-52-52 EC8 Registered Smart Memory, one DIMM per kit
- Maximum: 512GB, as four 128GB RDIMMs at 6400 MT/s
- Population: HPE's memory population guidelines say the DIMM quantity must be 1, 2 or 4; the RDIMM option note in the same document says 1 or 4. Mixing single rank and dual rank DIMMs is not allowed
- Ordering: the -B21 kits sold here are the stand-alone memory SKUs; HPE's -F21 variants are for factory-integrated servers only
Every slot is its own channel, so fill all four. The DL110 Gen12 has four DIMM slots on four memory channels at one DIMM per channel; there is no second slot on any channel and therefore no speed step-down for a full population. Four DDR5-6400 RDIMMs give both the 512GB maximum and the full memory bandwidth, and a two-module configuration leaves half the channels idle on a server built for packet processing.
How much memory can the DL110 Gen12 hold?
| Configuration | Total capacity | Notes |
|---|---|---|
| 4 × 32GB RDIMM | 128GB | All four channels populated at 6400 MT/s; the smallest full fill |
| 4 × 64GB RDIMM | 256GB | All four channels populated; the configuration HPE's performance test builds use |
| 4 × 96GB RDIMM | 384GB | All four channels populated; the 96GB kit is the odd-size step between 64GB and 128GB |
| 4 × 128GB RDIMM | 512GB | The documented maximum, at full 6400 MT/s |
Because every slot is its own channel, four modules is both the capacity maximum and the bandwidth maximum: there is no configuration that trades speed for capacity here, and no reason to stop at two modules other than budget. With one or two DIMMs installed the server runs, but half or more of the memory channels are idle, which matters on a platform whose whole purpose is packet processing.
Choosing the Right DL110 Gen12 Memory
- Fill all four channels when you can. The Xeon 6 SoC has four channels and each slot is one of them; a two-module configuration leaves half the memory bandwidth unused.
- Buy one capacity, in fours. HPE's population guidance permits 1, 2 or 4 DIMMs, and the option-list note narrows that to 1 or 4; both point the same way for a full build. All four kits listed are dual rank, so the single-rank mixing restriction does not arise between them.
- Every kit is a single DIMM. A 512GB server is four 128GB kits, not one boxed set.
- Do not assume other DDR5 fits. The document specifies DDR5-6400 EC8 Registered Smart Memory and lists nothing else; slower DDR5 grades from earlier ProLiant generations are not listed for this server.
- Stand-alone SKUs end in -B21. If a quote shows a -F21 part number, that is HPE's factory-integration twin of the same kit, not a different module.
Complete Your DL110 Gen12 Build
The processor is fixed on this server, so memory is the one compute upgrade available — pair it with DL110 Gen12 M.2 NVMe drives, networking adapters and power supplies, or browse the full DL110 Gen12 parts listing. The same DDR5-6400 kits serve other Gen12 1U servers: see DL320 Gen12 memory and DL360 Gen12 memory, or all HPE Gen12 server memory. Background reading: maximum memory configurations for HPE ProLiant Gen12 servers, understanding memory rank in HPE servers and why memory speed matters. Every model we stock is indexed under HPE parts by server model.
DL110 Gen12 Memory FAQ
How much RAM does the DL110 Gen12 support?
512GB, as four 128GB DDR5-6400 Registered DIMMs. The server has four DIMM slots on four memory channels at one DIMM per channel, and HPE lists 32GB, 64GB, 96GB and 128GB kits for it.
What type of memory does the DL110 Gen12 use?
HPE DDR5 Smart Memory, Registered (RDIMM), EC8, at 6400 MT/s. All four kits listed are dual rank - a 32GB x8 module and 64GB, 96GB and 128GB x4 modules, each with CAS-52-52-52 timings.
How many DIMMs should I install in a DL110 Gen12?
Four for full bandwidth. HPE's memory population guidelines allow 1, 2 or 4 DIMMs; the RDIMM option note says 1 or 4. Each slot is its own channel, so a partial fill leaves channels idle.
Does the DL110 Gen12 slow down when all four slots are filled?
No. The server has one DIMM per channel with no second slot on any channel, so there is no two-DIMMs-per-channel speed step-down. Four DDR5-6400 modules run at 6400 MT/s.
Can I mix different DIMM sizes in a DL110 Gen12?
HPE's rule is that single rank and dual rank DIMMs cannot be mixed, and the listed kits are all dual rank. The population guidance is written in terms of 1, 2 or 4 identical modules, so the safe upgrade is four of one capacity.
What is the difference between the -B21 and -F21 memory part numbers?
The same module, ordered two ways. HPE states the -B21 SKUs are for stand-alone memory orders and the -F21 SKUs are used when configuring a server with factory-integrated DIMMs. The kits sold here are the -B21 stand-alone parts.
✅ Looking for a specific DL110 Gen12 memory module? Browse our full selection below.
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