HPE ProLiant DL325 Gen10 Memory
Upgrade your HPE ProLiant DL325 Gen10 with genuine HPE DDR4 SmartMemory, in stock new and refurbished and tested before shipping. All 16 DIMM slots hang off the single EPYC 7xx2 socket — 8 channels, 2 DIMMs per channel — so this 1U server carries two-socket memory capacity on one processor.
DL325 Gen10 Memory Specifications
- Memory type: HPE DDR4 SmartMemory in Registered (RDIMM) and Load Reduced (LRDIMM) form — mixing UDIMM, RDIMM, and LRDIMM types is not supported
- Slots: 16 DIMM slots, all on processor 1 — 8 channels per processor, 2 DIMMs per channel
- Speed: DDR4-2933 CAS-21-21-21 at 1 DIMM per channel, stepping down to 2666 MT/s at 2 DIMMs per channel; 2933 kits require the EPYC 7xx2 family
- RDIMM capacities: 8GB single-rank x8, 16GB single-rank x4, 16GB dual-rank x8, 32GB dual-rank x4, and 64GB dual-rank x4
- LRDIMM capacities: 64GB and 128GB quad-rank x4 modules
- Maximum capacity: 1.0TB of RDIMM (16 × 64GB) or 2.0TB of LRDIMM (16 × 128GB)
Fill one DIMM per channel before you fill the second. The DL325 Gen10 runs DDR4-2933 at 1 DIMM per channel and steps down to 2666 MT/s once both slots in a channel are populated. Eight matched modules hold the full rate — buy larger DIMMs before you buy more of them.
How much memory can the DL325 Gen10 hold?
| Configuration | Total capacity | Notes |
|---|---|---|
| 8 × 16GB RDIMM | 128GB | Entry build, one DIMM per channel at 2933 MT/s |
| 8 × 64GB RDIMM | 512GB | Full 2933 MT/s with 8 slots still free |
| 16 × 64GB RDIMM (all slots) | 1.0TB | RDIMM maximum — 2DPC, so 2666 MT/s |
| 16 × 128GB LRDIMM (all slots) | 2.0TB | Platform maximum |
Eight matched modules — one per channel — is the configuration that holds 2933 MT/s. Filling the second slot in each channel doubles capacity but drops every module to 2666 MT/s, so buy larger DIMMs before you buy more of them.
Choosing the Right DL325 Gen10 Memory
- Populate one DIMM per channel first: eight identical modules keep the server at DDR4-2933; going to 2 DIMMs per channel costs you the 2933 grade across the board.
- Never mix x4 and x8 modules — HPE prohibits it outright, and RDIMM and LRDIMM cannot be mixed either.
- LRDIMM is the only route past 1TB: the 64GB and 128GB quad-rank LRDIMMs reach 2.0TB, while dual-rank 64GB RDIMMs cap the server at 1.0TB.
- Every DL325 Gen10 memory option is a stand-alone -B21 kit — the -L21 numbers in the QuickSpecs are factory processor kits, not memory.
- Background reading: memory rank in HPE servers, why memory speed matters, and what CAS latency means.
Complete Your DL325 Gen10 Build
Pair memory with DL325 Gen10 drives, storage controllers, and networking adapters, or start from the full DL325 Gen10 parts page. Neighboring chassis: DL325 Gen10 Plus memory and the two-socket DL385 Gen10 memory. You can also browse parts by server model.
DL325 Gen10 Memory FAQ
How much RAM does the HPE ProLiant DL325 Gen10 support?
HPE lists 1.0TB as the RDIMM maximum (16 x 64GB DDR4-2933) and 2.0TB as the LRDIMM maximum (16 x 128GB). All 16 slots belong to the single processor.
How many DIMM slots does the DL325 Gen10 have?
16, arranged as 8 memory channels with 2 DIMMs per channel. Because the server is single-socket, every slot is available without adding a second processor.
What memory speed does the DL325 Gen10 run?
DDR4-2933 with one DIMM per channel. Populate both slots in a channel and the speed drops to 2666 MT/s. The 2933 MT/s kits are only supported with AMD EPYC 7xx2 Series processors.
Can I mix RDIMM and LRDIMM in the DL325 Gen10?
No. HPE does not support mixing DIMM types - UDIMM, RDIMM, and LRDIMM cannot be combined. Mixing x4 and x8 modules is also prohibited, so keep the whole server on one module width.
What DIMM capacities are available for the DL325 Gen10?
RDIMMs in 8GB, 16GB, 32GB, and 64GB, and LRDIMMs in 64GB and 128GB. All are DDR4-2933 CAS-21-21-21 HPE SmartMemory kits.
Do I have to fill all 16 DIMM slots?
No, and usually you should not. Eight modules, one per channel, is the balanced layout that keeps the full 2933 MT/s rate; fill the second slot per channel only when you need the capacity more than the speed.
✅ Looking for a specific DL325 Gen10 memory module? Browse our full selection below.
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