HPE ProLiant DL345 Gen10 Plus Memory
Upgrade your HPE ProLiant DL345 Gen10 Plus with genuine HPE DDR4 Smart Memory, in stock new and refurbished and tested before shipping. One AMD EPYC processor owns all 16 DIMM slots — 8 channels at 2 DIMMs per channel — and every kit the QuickSpecs list for this platform is DDR4-3200.
DL345 Gen10 Plus Memory Specifications
- Memory type: HPE DDR4 Smart Memory, Registered (RDIMM), with Advanced ECC — the 128GB and 256GB kits in that list are Load Reduced modules
- Slots: 16 DIMM slots, 8 channels per processor, 2 DIMMs per channel
- Speed: DDR4-3200 across every listed kit — maximum memory speed is limited by the processor selection
- DIMM-per-channel rule: 8GB through 128GB kits run 3200 MT/s at both 1 and 2 DIMMs per channel; the 256GB kit runs 3200 MT/s at 1 DIMM per channel and 2933 MT/s at 2
- Capacities: 8GB single-rank x8, 16GB single-rank x4, 16GB dual-rank x8, 32GB and 64GB dual-rank x4, 128GB quad-rank x4, and 256GB octal-rank x4 3DS
- Maximum capacity: the document states 1.0 TB for RDIMM (16 × 64GB at 3200 MT/s) and 4.0 TB for LRDIMM (16 × 256GB)
Check the organization before the capacity. Mixing x4 and x8 memory is not allowed on this platform. Only the 256GB kit steps down with both slots on a channel filled — 8GB through 128GB kits hold 3200 MT/s at 1 and 2 DIMMs per channel, while the 256GB kit drops to 2933 MT/s at 2.
How much memory can the DL345 Gen10 Plus hold?
| Configuration | Total capacity | Notes |
|---|---|---|
| 8 × 32GB | 256GB | One DIMM on each of the 8 channels |
| 16 × 32GB | 512GB | Every slot filled, still DDR4-3200 |
| 16 × 64GB | 1.0 TB | The stated RDIMM maximum |
| 16 × 128GB | 2TB | Load Reduced quad-rank modules |
| 16 × 256GB 3DS | 4.0 TB | The stated LRDIMM maximum |
The 64GB dual-rank kit is the sweet spot — sixteen of them are how the QuickSpecs reach the 1.0 TB RDIMM maximum, and kits from 8GB to 128GB hold 3200 MT/s at one or two DIMMs per channel. Only the 256GB kit steps down, to 2933 MT/s at 2.
Choosing the Right DL345 Gen10 Plus Memory
- Never mix x4 and x8 modules. The memory notes state plainly that mixing x4 and x8 memory is not allowed, so check the rank and organization on the label, not just the capacity.
- Decide capacity against speed at the 256GB kit, the one module that drops to 2933 MT/s when a channel carries two DIMMs.
- The processor sets the ceiling. Maximum memory speed is limited by processor selection, and the processor table notes that 7xx2 processors run 2 DIMMs per channel at 2933 MT/s rather than 3200.
- Background reading: memory rank in HPE servers, why memory speed matters, and what CAS latency means.
Complete Your DL345 Gen10 Plus Build
Pair memory with DL345 Gen10 Plus processors, drives, storage controllers, networking adapters, and power supplies, or start from the full DL345 Gen10 Plus parts page. Neighbors: DL345 Gen11 memory and DL385 Gen10 Plus v2 memory. Also browse all Gen10 Plus server memory or parts by server model.
DL345 Gen10 Plus Memory FAQ
How much RAM does the HPE ProLiant DL345 Gen10 Plus support?
The QuickSpecs print two maximums. Maximum capacity for RDIMM is 1.0 TB, given as 16 x 64 GB at 3200 MT/s. Maximum capacity for LRDIMM is 4.0 TB, given as 16 x 256 GB at 3200 MT/s on 1 DIMM per channel and 2933 MT/s on 2. The processor table separately notes that all AMD EPYC processors can support up to 4TB of memory each.
What type of memory does the DL345 Gen10 Plus use?
HPE DDR4 Smart Memory Registered DIMMs at DDR4-3200, in 8GB, 16GB, 32GB, 64GB, 128GB, and 256GB kits. The 128GB quad-rank and 256GB octal-rank 3DS kits are Load Reduced modules. Memory protection is Advanced ECC.
How many memory slots does the DL345 Gen10 Plus have?
16, arranged as 8 channels per processor at 2 DIMMs per channel. This is a single-processor server, so one CPU serves all 16 slots.
Does the DL345 Gen10 Plus slow down when every DIMM slot is filled?
It depends on the kit. The QuickSpecs state that 8GB through 128GB SKUs run 3200 MT/s at both 1 and 2 DIMMs per channel, while the 256GB SKU runs 3200 MT/s at 1 DIMM per channel and only 2933 MT/s at 2. The processor table also notes that 7xx2 processors run 2 DIMMs per channel at 2933 MT/s.
Can I mix x4 and x8 DIMMs in the DL345 Gen10 Plus?
No. The memory selection notes state that mixing x4 and x8 memory is not allowed. Keep one organization throughout the server.
What CAS latency do DL345 Gen10 Plus memory kits use?
The 8GB through 128GB kits are listed as CAS-22-22-22. The 256GB Load Reduced 3DS kit is listed as CAS-26-22-22.
✅ Looking for a specific DL345 Gen10 Plus memory module? Browse our full selection below.
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