HPE ProLiant Gen11 Server Memory Population
- server-parts.eu server-parts.eu
- 4 days ago
- 4 min read
HPE ProLiant Gen11 is the first ProLiant generation fully built around DDR5 memory. Compared to the HPE ProLiant Gen10 series, Gen11 delivers much higher memory bandwidth—but only if memory is populated correctly.
A wrong configuration may still boot, but it can:
Run at lower MT/s
Leave memory channels unused
Reduce real performance by 20–40%
HPE ProLiant Gen11 Memory: Save Up To 80%
✔️ 5-Year Warranty – No Risk: Pay Only After Testing
HPE ProLiant Gen11 Memory Population: Fundamentals
Memory type: DDR5 ECC RDIMM only
LRDIMM: ❌ Not supported
Mixing DIMM sizes or speeds: ❌ Not supported
Slot rule: White (primary) slots first
CPU balance: Symmetric per CPU
Performance rule:
1DPC (1 DIMM per channel) → best speed & latency
2DPC (2 DIMMs per channel) → more capacity, lower speed
HPE ProLiant Gen11 Memory Population: DDR5 speed behavior
Intel Xeon Scalable Gen4 / Gen5
1DPC → ~4800–5600 MT/s
2DPC → ~4400–4800 MT/s
AMD EPYC 9004 / 9005
1DPC → ~4800–6000 MT/s (9005 higher)
2DPC → drops one or more speed bins
Speed changes are automatic and enforced by BIOS.
HPE ProLiant DL20 Gen11 Memory Population
Use case: Edge, branch, light workloads
Platform: Single-socket Intel Xeon E
Memory Population – HPE ProLiant DL20 Gen11
DIMMs | DIMM size | Total RAM | Notes |
4–8 | 32–64 GB | 128–512 GB | Even population; limited for heavy use |
Guidance: HPE ProLiant DL20 Gen11 Population
Fewer channels and slots than mainstream servers
DDR5 RDIMM only
Not designed for memory-intensive or bandwidth-heavy workloads
HPE ProLiant DL320 Gen11 Memory Population
Use case: Modular edge, compact compute, light GPU
Platform: Single-socket Intel Xeon Scalable
Channels: 8
Memory Population – HPE ProLiant DL320 Gen11
DIMMs | DIMM size | Total RAM | Notes |
8 | 32 GB | 256 GB | Entry, balanced |
8 | 64 GB | 512 GB | Full channels |
8 | 128 GB | 1 TB | Max performance |
HPE ProLiant DL325 Gen11 Memory Population
Use case: Virtualization, CDN, edge compute
Platform: Single-socket AMD EPYC 9004/9005
Channels: 12
Memory Population – HPE ProLiant DL325 Gen11
DIMMs | DIMM size | Total RAM | Notes |
12 | 32 GB | 384 GB | Full bandwidth |
12 | 64 GB | 768 GB | Very common |
12 | 128 GB | 1.5 TB | High-end |
Key point: Using fewer than 12 DIMMs leaves memory bandwidth unused.
HPE ProLiant DL360 Gen11 Memory Population
Use case: Compute-dense virtualization
Channels: 8 per CPU
Memory Population – HPE ProLiant DL360 Gen11
Total RAM | DIMMs | DIMM size | Notes |
192 GB | 6 | 32 GB | Entry |
384 GB | 12 | 32 GB | Best value |
512 GB | 16 | 32 GB | Full channels |
1 TB | 16 | 64 GB | High-performance |
HPE ProLiant DL365 Gen11 Memory Population
Use case: Dense compute with enhanced I/O
Memory Population – HPE ProLiant DL365 Gen11
Total RAM | DIMMs | DIMM size | Notes |
192 GB | 6 | 32 GB | Entry |
384 GB | 12 | 32 GB | Best value |
512 GB | 16 | 32 GB | Full channels |
1 TB | 16 | 64 GB | High-performance |
1.5 TB | 24 | 64 GB | Capacity-focused (2DPC) |
4 TB | 32 | 128 GB | High capacity (2DPC, lower speed) |
HPE ProLiant DL385 Gen11 Memory Population
Use case: Data-intensive, accelerator-heavy
Channels: 12 per CPU
Memory Population – HPE ProLiant DL385 Gen11
DIMMs | DIMM size | Total RAM | Notes |
24 | 32 GB | 768 GB | Full bandwidth |
24 | 64 GB | 1.5 TB | Very common |
24 | 128 GB | 3 TB | High-end |
HPE ProLiant DL145 Gen11 Memory Population
Use case: Retail, manufacturing, telecom edge
Platform: Single-socket Intel (primary); AMD variants also exist
Channels: 8 (Intel) / up to 12 (AMD)
Memory Population – HPE ProLiant DL145 Gen11 (Intel)
DIMMs | DIMM size | Total RAM | Notes |
8 | 32 GB | 256 GB | Balanced |
8 | 64 GB | 512 GB | Common |
8 | 128 GB | 1 TB | Max at 1DPC |
HPE ProLiant DL345 Gen11 Memory Population
Use case: SDS, backup, video, storage-heavy
Platform: Single-socket AMD EPYC
Channels: 12
Memory Population – HPE ProLiant DL345 Gen11
DIMMs | DIMM size | Total RAM | Notes |
12 | 32 GB | 384 GB | Entry |
12 | 64 GB | 768 GB | Typical |
12 | 128 GB | 1.5 TB | High-end |
HPE ProLiant DL380 Gen11 Memory Population
Use case: General-purpose enterprise flagship
Memory Population – HPE ProLiant DL380 Gen11
1DPC (recommended)
DIMMs | DIMM size | Total RAM | Notes |
16 | 32 GB | 512 GB | Best value |
16 | 64 GB | 1 TB | Very common |
16 | 128 GB | 2 TB | High-performance |
2DPC
Multi-TB possible (up to 8 TB with 256 GB 3DS RDIMMs)
Memory speed reduced
HPE ProLiant DL380a Gen11 Memory Population
Use case: AI inference, GPU compute
Memory Population – HPE ProLiant DL380a Gen11
Total RAM | DIMMs | DIMM size | Notes |
512 GB | 16 | 32 GB | Entry GPU configuration |
1 TB | 16 | 64 GB | Best value for AI inference |
2 TB | 16 | 128 GB | High-performance, full channels |
3 TB | 24 | 128 GB | Capacity-focused (2DPC) |
8 TB | 64 | 256 GB (3DS) | Maximum capacity (2DPC, lower speed) |
HPE ProLiant DL560 Gen11 Memory Population
Use case: SAP HANA, large in-memory databases
Slots: 64 total (16 per CPU)
Memory Population – HPE ProLiant DL560 Gen11
DIMMs | DIMM size | Total RAM | Notes |
32 | 32 GB | 1 TB | 1DPC |
32 | 64 GB | 2 TB | Common |
32 | 128 GB | 4 TB | High-end |
64 | 256 GB (3DS) | 8 TB | 2DPC, lower speed |
Most Common HPE ProLiant Gen11 Memory Population Mistakes
❌ Mixing DIMM sizes
❌ Ignoring channel count (especially AMD)
❌ Using 2DPC without need
❌ Uneven memory per CPU
❌ Copying Gen10 layouts
HPE ProLiant Gen11 Memory: Save Up To 80%
✔️ 5-Year Warranty – No Risk: Pay Only After Testing
Sources: HPE ProLiant Gen11 Server Memory Population
HPE ProLiant DL380 Gen11 QuickSpecs (memory section) – official specs including DDR5 RDIMM support and slot details:
HPE ProLiant DL360 Gen11 QuickSpecs (memory information) – shows memory type and DIMM population behavior for DL360 Gen11:
HPE Gen11 Server Memory Population Rules (technical paper) – official HPE guidance on how to populate DIMMs and maximize performance:
HPE ProLiant DL365 Gen11 DIMM population info – specific DIMM population guideline page for DL365 Gen11:
HPE ProLiant DL380a Gen11 QuickSpecs – details memory slots and RDIMM support on the GPU-oriented DL380a Gen11 servers: